Pinkbike Poll: Not So Fast, Punc!

May 15, 2017 at 8:51
by Paul Aston  
Flats on stage seven cost many riders precious time.
Man and machine, racing down the hill in a battle of nerve and skill. Or is it down to the fastest rider to repair their tires?


Mountain bikers love to compare weights of things, especially the rotating masses of wheels and tires. But, I don't think anything is slower than a puncture, and I have been trying to argue this point for years. If I was racing World Cup DH or the Enduro World Series this season, I could have beaten a number of paid pro riders, simply by riding my 60-pound freeride sled with solid rubber tires and making it to the end of the race.

This is a tale of two races: one at the British Downhill Series and one at the Enduro World Series - only two of a large number of early season races that happened across the globe. Both were plagued by punctures, and while they only represent a fraction of the bikes that were successfully piloted and pressurized at these races, how is it still possible that at these pinnacles of competition, such a simple failure could dump a racer's hopes and dreams, the years of preparation, and an untold sum of sponsorship and development dollars down the DNF drain?


British Downhill Series: Fort William

Ben Cathro and Gaetan Ruffin rolling down together with punctures at the end of the BDS race in Fort William.
bigquotesBen is a privateer, so every result counts. His latest instagram post announced that he was not nominated for a national jersey and wouldn't be eligible to race the Fort William World Cup...

Ben Cathro and Gaetan Ruffin both flatted in their final runs. Ben is a privateer, so every result counts. His latest instagram post announced that he was not nominated for a national jersey and wouldn't be eligible to race the Fort William World Cup - an event he's raced 10 times in the last 12 years. God knows how much money Commencal spent on paying Gaetan, building new race bikes for 2017, building new 29" prototypes, flying to Fort William from France and getting all the equipment there–to simply go home with three letters: DNF.

Danny Hart jump sequence
Danny Hart punctured in seeding to finish 35th position at Fort Bill. He still took the win, but a bad qualifying run can warp some rider's minds for the finals.


Are 80 Punctures Enough?

I spoke to the race organizer, Si Paton, about the puncture situation and he had this to say: "Lewis Jones, our super marshal, helped over 80 riders fit new tubes at the Deer Gate/Schwalbe [around the mid-point of the track] repair station we installed. Fitted with tubes, pumps and tools!" Eighty riders! Consider that Fort William has been raced on for fifteen years (at least twice annually), so it's not as if the rocks jumped onto the track and surprised everybody. Have speeds increased substantially? Are racers taking risks to save rotating weight? Is lighter even faster downhill? Jack Reading stated he had one on the best results of his life at Fort William on a 46-pound Nicolai, with lead added to the frame!

For the environmentalist and the tight-fisted bugger inside of me, that's another 80 inner tubes, which were produced in Asia, shipped all the way to the deer gate on The Bill, used for half a run, and then likely removed to set up a tubeless system again in the pits. Or, €400. Could that cash have been better used as prize money for the juniors.
bigquotesIf it was purely down to weight, Jack Reading stated he had one on the best results of his life at Fort William on a 46-pound bike, with lead added to the frame!





Enduro World Series: Madeira

Early leader Thomas Lapeyrie had the worst of luck on stage 3 when a puncture ruined his chances of a win or any top result in Madeira.

Matthew Delorme's caption for this photo reads "Early leader Thomas Lapeyrie had the worst of luck on stage three when a puncture ruined his chances of a win or any top result in Madeira." Is it really down to luck, or do we all know that punctures are far too common in mountain bike racing? Thomas Lapeyrie. A fantastic, strong and skillful mountain biker. Not normally a podium contender, but a solid finisher on the EWS circuit. The Sunn team rider was having the race of his life in Madeira stating a first, then second place stage finishes, but punctured during Stage three, losing minutes. He clawed back some time, and finished a commendable 24th, but what could have been?

Jerome loughs it up with good company at the bottom of Stage 3 as Jared Graves Richie Rude and early race leader Thomas Lapeyrie were all fixing punctures.
Prototype or proto-shite? Not only does a puncture kill race times at an EWS, but lost time can lead to wasted energy and can take a toll on the following stages. Transition times are tight and making up for the minutes lost fixing a puncture by powering up the hill to make the next start time can destroy energy reserves.

Funny how a foam ring can save one s race.
Jared Graves was using Cush Core inserts when he flatted, which probably helped him save his wheel, ride out the rest of stage, and eventually finish fourth overall. A bulky blasphemy to many; the inserts weigh around 250 grams each.


bigquotesI'm not looking forward to... I don't want to flat.Richie Rude

I was surprised at the number of riders not choosing full DH casing tires on this video. Is it a case of run what ya' brung?, or a choice to try and save a few grams? Flying to Madeira for this race meant that some riders would have been guessing at the best option to fill limited baggage space before boarding the plane, with little chance of swapping out to heavier tires during the week.

The same stage that popped Lapeyrie's hopes also deflated Clementz's, Graves' and Richie Rude's tires - and they were the few that I found reported online. Four riders from the leading ten. How many of the 400 racers also punctured, we may never know. Madeira's beautiful waterways must have been flowing with toxic tubeless sealant.

#butwhy1

That's a question I have been asking for years. Poor Jesse Melamed. After stepping into the space left open by Lapeyrie, he finished day one in the lead. Absolutely fantastic for the promising Canadian. The EWS live feed suggested he punctured and/or destroyed a carbon wheel on Stage seven. After fading to 180th place, those three little letters reared their ugly heads: DNF. It must have been gutting, and that missed result may have ruined his chances for a top spot in the overall EWS points chase. Race season over. Move on to the next. How many shots do these guys have at glory? "Not enough" is the answer in their generally short-lived athletic careers. His saving grace could be that everybody else's bad luck could bump up a few places by the end of the season.

#butwhy2
Because tires that weigh 3000 grams but never flat are a tough sell for the marketing team?

Stage 7 was carnage with big crashes broken frames and punctures. When all was said and done three of the mornings top five riders were out of contention.
Riding on the previous leaders' misfortunes, Adrian Dailly moved up to second place and was raging until he too joined the puncture club.

Adrian Dailly explodes his rear tire
With Lapeyrie and Melamed out of the game, Adrian Dailly, the Tasmania EWS winner, stepped into second in Madeira and won four of the weekend's stages, but this puncture on stage seven ruined any chance of a repeat of his previous win.

Mark Scott was also reaping rewards from others' sorrows, sitting in fifth overall after stage six - equal to his best ever EWS result - until a puncture on stage seven dropped him to 13th overall. The EWS race at Madeira suggests that flat tires, not skill and athleticism largely determined the outcome, and the overall series will be a war of attrition.

Mark Scott was looking to one of his best EWS finishes but a flat on Stage 7 pushed him down to 13th.
Mark Scott, racing towards disappointment in Madeira


Putting Punctures into Perspective

Following Greg Callaghan's victory at the Madeira EWS race, founder Chris Ball banted on his facebook page: "Greg won in 49min 24sec, riding over 95km including liaisons with over 4700m descending." That race winning time is the equivalent of 17 race winning runs back-to-back at Lourdes Downhill World Cup this year and riding 45.2 times the distance, with no pit support. If the course is rough, it's not uncommon for World Cup downhillers to go through a wheel a run. At Lourdes, that's a wheel every 2 minutes and 54 seconds of racing. Therefore, if only a handful of racers suffer punctures or blow up wheels riding trail bikes racing down nine wild, un-groomed trails - well that's pretty astounding." But surely, a mountain bike should be able to ride down a mountain for the duration of one race without destroying a tire or a wheel.

Is the current equipment the best solution for the speeds of a pro rider? The pro's in mountain biking are generally using production parts and need to manage the risks? Is that the beauty of mountain bike racing, that it is something attainable for anybody who can stretch out a few thousand dollars of disposable income.

Is it time for the mountain bike industry to redesign wheels and tires and address the failings of the present standards, perhaps even complete bikes? Should manufacturers be looking at building race specific bikes that the consumers cannot have, but use their branding to create sales – you can't buy a Nascar or F1 car, but the sponsorships plastered over these machines generate sales and brand image.

Should racing regulations require an existing solution, like no-air mousse type tires to level the playing field? Maybe there should be a gentleman's agreement–like the downhill visor and skinsuit rule–which says "let's all run solid, heavy AF tires, be in the same weighty boat every weekend but actually finish some races and get some fair results."?

Is it fair game to allow racers to choose to use a heavier, flat-proof wheel and tire, or to trade the risk of a puncture for speed and perhaps, pay the price of failure? If all of the above were running solid 3kg tires and 1kg rims, would they have ended up with better results than they did? Or is it the racer's choice, is it more important to them to gain the best results at the risk of failure, or to play the consistency game? Race winner and series leader, Greg Callaghan, has only won 3/23 stages of the series so far.


What do you think?

Are standard, tubed/tubeless tires the correct product for professional racing?



How many of you have had a race result affected by a flat tire?




I've always found it interesting in mountain biking that getting a puncture is just 'one of those things' or 'that's racing.' And manufacturer's seem to be taking note with the explosion of the tire insert market in the last few years: ProCore, DeanEasy, Cush Core, Huck Norris, Flat Tire Defender and more. Maybe somebody can finally solve this once and for all and we can all ride bikes more.

Author Info:
astonmtb avatar

Member since Aug 23, 2009
486 articles

122 Comments
  • 154 8
 The real answer for why pros have punctures and average chumps don't is because pros are doing things on their bikes average chumps don't. Simple as that.
  • 40 5
 I dont think so. Im not a fast rider, but somehow, i manage to get less flats than most of people slower than me. Nico Vouilloz used to chase every single grams on his bike (titanium bolts everywhere and so on), except for the tyres, where he was putting the toughest shit he could find, I think pro enduro racers should do the same. I mean, if you're light and you ride smooth on a trail you know, you don't need DH casings; if you're a pro, racing on some of the roughest enduro trails of the world, you should go for dh casings with procore or huck norris stuff or similar
  • 28 3
 ...or we could assume that riders who are the best in the world are constantly weighing the benefits and costs of the decisions they are making. As an lover of the sport it sucks when a rider I respect and enjoy watching doesn't get the result I had hoped because of a flat. It sucks way more for them because it is their livelihood, their career and they have invested more physical and emotional work than most of us can dream of. You don't think if they could make a simple switch to fix a problem to do better they would? Or maybe that the tire lobby and conspiracy is such that they are able to force riders to do things against their free will? I think it's less helpful to tell people who ride a sh$% load better than most of us, have more experience than most of us and know how tires feel smashing through rocky sections more than most us what they "should" do and more helpful to trust they are smart enough to make the adjustments they feel appropriate and be appreciative for the entertainment and development they provide.
  • 13 0
 To say sharp rocks discriminate like that is insulting to sharp rocks!
  • 3 2
 A rim or tire for us is devastating compared to them, is just a 10 minute rim swap for them, an average "chump" will suffer
  • 13 9
 If they ran higher pressure they wouldnt punture, they choose to run pressures that give an amazing grip but fail to stand up to the rough abuse of the trails. If they added 10-15 psi it wouldn't happen but the bikes would be tough to ride.....like mine
  • 5 0
 @oldfaith: From what little I've seen of pro bikes first hand, many seem to push the boundaries of what is possible in the hope of a small gain, be it a few psi less that they really should/ lighter tyre than they should/ lighter rim/ etc. It is as much mental for them as it is for us plebs buying components for hundreds of pounds to save 50g... but of course where there is reward there is also risk
  • 5 1
 This. I use Maxxis 3C tires front and rear, set up tubeless, and haven't had a single flat since I started drinking the tubeless koolaid last April. I'm on a 160mm Cannondale Jekyll and I take it on some rougher stuff but I'm not a smashy rider. Different riding requires different equipment.
  • 1 6
flag Chingus-Dude (Jun 2, 2017 at 14:09) (Below Threshold)
 When I cracked my frame I rode my dad's Giant Talon. I do 2-3 rides a week, and about 15 miles a ride. Every ride on that bike I got at least 2 flats. Then again they were on some cheapy tires. Luckily I got a new bike so no more flats
  • 1 0
 @snl1200: Well Said snl!
  • 2 0
 @oldfaith: exactly. Racers takes risks looking for grip and weight savings. And that's mean nothing when get stuck on trail side with flat tyre...
  • 2 0
 performance>weight.
  • 1 1
 Think we will maybe see some new tire rubber technology here in the next few years, probably around graphene which looks promising. If they can some how make tires and/or tubes 50% more puncture resistant and lighter that would be a major breakthrough.

Vittoria is using it in thier bike tires and you will start to see it in in car tires also.
www.techtimes.com/articles/160013/20160521/graphene-makes-thin-rubber-stronger-and-stretchier.htm
www.tyrepress.com/2016/10/sentury-electrostatic-graphene-tyre-breaks-through-performance-triangle
  • 1 0
 @snl1200: couldn't have said it better myself. *Thumbs up*
  • 1 0
 I think that tyres flat to easily, I also think if you ride smooth and pick proper casing the number of flats you get goes down... but of course theres room for improvement. However I believe racing is a different world to amateurs, where as an amateur has to consider not wrecking his bike on the way down, pros don´t seem to care, so they also push harder and the smoothest is not always the fastest... I´m not a huge fan of pit stops, but they exist in most sports, so obviously stuff just brakes when you push hard
  • 1 2
 alright, i dont really like to comment on these things because seriously, if you get a puncture, its mostlikely your foult, there is the push and suck up technuiqe that you use in pumptracks, but also its used in dh obviously, its a very impportant technuiqe that can decide wether you puncture or not... if you push on the edge of a sharp rock, or run to low tire presures, its predictable if youre going to have a puncture or not
  • 2 1
 @davidpr2: wrong.
  • 1 0
 @LiquidSpin: well ofcorse thay changes if you go as fast as those boys, but i really think that tires are alright, very contraversial opinion but. You know its just an opinion
  • 45 1
 being able to wreck a good tire and rim is a sign that your going a decent pace. like a badge of honour... or that you fat and have bad line choice. i like to think im a bit of both
  • 18 0
 Here here!! To the fat and distracted!
  • 3 6
 I fkd up a Spec Grid tyre with Huck norris inside, on not that fast track. Didn't commit enough to huck over some chunky rocks and landed in the middle of them. Pure rider error. Well, like all riders pros make mistakes, miss a line, don't notice a rock, even at their skill level. Nobody is too good for a flat or a crash. This why when I hear a dude saying: carbon rims are super strong I destroyed only one, and it's 100% rider error I go: U No say! And alu rims explode in a planned manner!
  • 1 0
 @WAKIdesigns: I run 29 er Maxxis DHF dh casing in front W 29 psi
Spec Slaughter grid in rear w 34 psi I'm 225lbs and ride like a true Hack!!!
Last year I upped front and back about 4psi to these new numbers. Stiffer w less traction, but I find if I now ride faster and harder I get that performance back out of them. I ride Bootleg every weekend and all SW US bike parks all summer. I now almost never have tire/wheel issues anymore, but much like my suspension, at slow speeds it feels crappy/harsh!!
FYI- I huck and come up short a lot, tires still hold up!!!
  • 1 1
 @enduro29erHack: nah just rode DH casings front and back. Did my homework at the gym, pumped up the Lyrik, bike went like a samurai pizza cutter. Ordering harder spring for the rear tomorrow. Dadadadada fantastic!
  • 40 0
 Schwalbe donated over 100x tubes that weekend. We've offered this service for the past three years at Fort William BDS, its s life saver. Schwalbe also recycled the tubes and a load of old tyres at the event. Personally at Fort Bill I used Michelin System 1 big foam inner tubes. Weighed a ton but never punctured! Consistency counts if your contending a series and to win a series you must finish each race!
  • 6 0
 Too true, this doesn't only count for racing. When you're tight on time with two kids, you don't want a third of your ride wasted by buggering about with flats. I run tubeless tyres with tubes, so I can swap out if needed, a tubeless fail with no spare tubes & the faff is enough to enrage anyone!
  • 1 1
 @cunning-linguist: I tried to do this with Mary's on my deemax's and pinched 3 inner tubes and broke 2 Pedro's levers before giving up, no way we're those tyres going on with tubes !
  • 1 0
 @scoot34: unlucky champ. Hats off, you even use Pedro's tyre levers (me too), if you couldn't do it with them, there is no hope!

Some tyre and rim combos fit worse than others, tolerance on actual sizing is pretty weak!
  • 1 0
 @cunning-linguist: I had some Pedro's tyre levers that were free with MBUK in 1992 or 1993. I've still got them at my dad's house. Unreal levers and made of recycled plastic before recycling was a thing.
  • 25 1
 If only the time and resources invested in new standards were instead invested in tire innovation...
  • 16 0
 stupidly low tyre pressures for grip in a trade off for rolling speed an puncture resistance but..... all these expensive heavy inserts to solve puncture problems with lighter an lighter tyres when riders could just use decent tyres in the first place
  • 10 0
 This is why I run DH casing tires on trail bikes. Rather have the extra weight than dicking around in the woods with a flat....
  • 8 0
 OMG JUST CLICKED THE JUNIORS PIC! 20 euros are they for real?

What a joke of prize money for the future of the sport. I know they love riding but damn that's no way to encourage the future generation to actually go race professionally.

More prize money for the kids!

What was the ladies prize money like??
  • 7 0
 In road cycle racing and all forms of wheeled motorsport puntures are very common. It is and probably alway will be a risk/reward tradeoff.

Look at F1 which have unique tyres just for them, all the same for everyone on the grid and they still get a lot of flats.

The better riders/drivers learn how to manage tyres to win championships, part of the game.
  • 7 0
 I've ridden 2000 miles since switching to tubeless, 29er tires e13 rims (aluminum 28mm inner) and Arc 30 with Maxxis Exo tires, using Orange Seal regular and endurance sealant zero flats!! My local "flat city" trails, glacial run off, sharp rocks, square baby heads, roots, 25+ mph rock strewn downhills, every other ride had a flat with tubes. Mostly pinch flats, few long thorns. I averaged 6-8 flats a year running tubes. I don't go silly on pressures, 26-28psi, not one flat. I do have scuffed sidewalls, but no cuts. I think the pros are way too low in psi. Watch a slow-mo, you can see the tires collapse. That might be the sole issue?
  • 1 0
 probably not the sole issue, but certainly a factor. tubeless has been a complete game changer for me as well...nothing is perfect but no complaints here.
  • 10 1
 this just in! new tire standards!
  • 3 0
 Im conflicted, should I give positive props for a fun joke or neg for giving them the idea, oh the dilemma!
  • 3 0
 I don't know that its such a mystery. I think tire technology can continue to improve and that will be a good thing, its come a long way already - fairly reliable tubeless set ups are now the norm. I think though that it will always be a balancing act. Weight vs durability. This sport is abusive on equipment and tires are asked to do a lot. Indestructible yet still be light enough to pedal around.
  • 3 0
 I build my trail/enduro bikes light and strong but always use a heaver tyre. Ive been using maxxis 'DD's (double downs) so far they're proving to be very reliable - 460kms no punches, I'm 90kg and we have very sharp rocks around here.

- what's the bet I get a puncture this afternoon...
  • 6 1
 I don't see what the issue is here, you run the tyre suitable for the job. If you don't choose wisely then tuff shit.
  • 3 1
 Cool article and an important one.
Without weighing in on the 29er debate, we've now got heavier rims and tyres AGAIN for a given level of pinchflat resistance. It's all good if it's faster - bring it on - but the industry is just picking the low hanging fruit (wheel sizes) to milk sales $$ without the technical development required to make it a minimal-compromise upgrade. Right now, to switch to 29 for DH means for equal rim strength and pinchflat resistance you'll either be adding a heap of weight to your bike, or making it way more prone to flatting, or reducing traction by running higher pressures to compensate.

I think more companies should focus on improving the reliability of the tyre/rim so that we don't have to keep making compromises in durability. Flats suck, racing or not. Messing around with tubeless, goo, tyre inserts, compressors, and all that junk saps the fun right out of riding.

If more companies put more effort into the interface with the ground, everyone would benefit - racers, punters, and people of all wheel sizes.
  • 2 0
 The reason pros flat is because they are going motorcycle speeds on bicycle technology. Its a weight vs strength issue. Bicycle technology preferentially chooses weight as the primary factor. Dirtbike technology preferentially chooses strength strength as a primary factor.
  • 1 0
 Dh casing (or wtb tough casing) tires on a good tubeless setup wheel won't flat if you're running the right pressure. It's not that the tires aren't available it's simply a higher reward for a lighter grippier setup so people will take the risk.
  • 2 0
 The end of punctures does actually exist.
It's called Procores, but people just aren't willing to try it.
The price point seems like bad value at first, until you break it down and see what you actually get.
In my opinion, Procores have quietly been the single most important mtb innovative of the last decade. Contrary to initial scepticism, it's actually the best £130 you can spend on a mtb. What else can you get for that money that will improve your bike? A suspension tune; about 3 tyres; a titanium spring; or a new trinket or bits of transmission. None of those things make anything like as big a difference to your bike, how it rides, grips and doesn't bloody puncture - ever!
  • 1 0
 Schwalbe Addix compound tires coming out soon and can't wait to see if their claim of dramatic increase in durability is for real. Keeping my fingers crossed.
I ride in lava fields with sharp rocks everywhere and flats are common with every type of tire: 2.30-2.35 Maxis exo, purgatory/grid, Nobby nic/ snakeskin, all with punctures right through the tread surface, not sidewall. Punctures just as often with lower pressures as higher pressures-tried both extensively out of frustration. Eventually realized it was just all down to going faster & hitting the rocks harder. If you are riding fast enough you simply cannot visually track and finess every single rock in rugged trails. You will flat more often.
Speeds have definitely gone up. Bikes are longer slacker faster & tire technology has not kept up. More punctures this year in EWS & UCI DH than I have ever seen before. It is all speed related.
Only occasional puncture when I rode 100 mm travel epic with 70° head angle; far more punctures, several per month, now that I ride specialized stumpjumper FSR with 160 mm Pike fork and 66.5°, with much faster descending speed than on the cross country bike.
  • 3 1
 tires and tubes are cash-cows for those manufacturers; like derailleurs. Great topic and an interesting debate. I found my perspective changed as I read through the article and finding myself at the voting station.
  • 1 0
 @paulaston Great article and one I can't comment on as I don't race. For me in SE England EXO casings and split tube has done me well for 7 years since converting. If I were racing (DH or Enduro) I would definitely go heavier probably with inserts. I guess its about balancing risk and reward.

Out of interest how many flats do you get with your DH casings and inserts on your Enduro bike?
  • 2 0
 Also does anyone else use split tube or ghetto? Jared Graves used to swear by it and so far I have had no problems and plenty of dents in the rear rim.
  • 1 0
 @fartymarty: what's split tube
  • 3 0
 @robjames: Ghetto tubeless with a split tube as a rim strip. I use it on tr rims and tyres.
  • 2 0
 A bike tube (often a wheel size smaller) is cut/split along the outer diameter and stretched across the rim, to act as rim tape and presta valve to inflate. I've had succes using it to ghetto tubeless some wheels.
@robjames:
  • 1 0
 @AJayTCP: thanks
  • 2 0
 What if manufactures found a way to make run-flat tires? Although they were boat anchors, those old gazzaloddis could almost be run without air because the sidewalls were so thick lol
  • 1 0
 Regardless of how or what or where you ride, riders are always vulnerable to punctures. Yes there are lots of products available to try to prevent a flat but it's just down to luck. I'm not the hardest of riders and I certainly don't ride the toughest trails but I've not flatted for at least 2 years running cheapish tyres and tubes. That includes Cannock and llandegla several times. Then coming out of work yesterday for my commute home and I get a flat.......while on smooth tarmac!!! Just shitty luck!!
  • 1 0
 I think many tire/wheel failures could be avoided if riders made better decisions when picking equipment. After running carbon wheels with light weight spokes, I switched to DT Swiss FR570s with heavy gauge spokes on my carbon Scout. Sure, they are chunky, but they handle my rocky local trails and my shitty riding style just fine.
  • 1 0
 Newbie question here, but how do the spline counts weigh in here? See alot of carbon wheels claiming enduro status with 28 spline. Some 28 front 32 rear, some 24 strait pull claiming all.mountain?? Can there be less spokes in a carbon wheel due to the stiffness of the hoop?
  • 1 0
 Physics and their trade-offs persist.

Instead of a 27.5 vs 29 test, how about a shaved thin race tire vs its burly brother. I doubt it would produce the mythical 5 second gap, especially over 100 trials with the added flats. Therefore, are the sponsors dictators? As Jill said, you have to make your speed in the us, but control it in Europe.

Choose your rubber accordingly.
  • 3 0
 Could it be that racers choose podium spots over overall score, and thus accept the occasional DNF? I can imagine podium spots = media attention and happy sponsors.
  • 1 0
 The real pro's riding it's maybe something that only a phew can really achieve ,the speed the energy the dynamic the decision making ,its all to fast ,and what suffers is the only thing that really matters the tires ,if they are too heavy ,they are gonna be slow rolling in the ups and sprints and even on some dows (lack of dynamic),too light ,well no chance ,fiding that balance it's not easy ,and last ,the tires pressure its not easy to find ,I don't know if they check them after each stage ?cause when I ride after a phew km my tires just feels like I added a phew psi on them ,like the rubber had become stiffer. Flat out
  • 1 0
 But I mean, what is the solution then? Do we begin not to use air in our tires? Do we develop the perfect inner tube? or do we just need to bite the bullet and run heavier tires? Entirely foam inner tubes like the 90's? Honestly, what solution could possibly exist to fix this?

We know the problem, we've known about this problem for decades, the justification and leverage is all there, the necessity for a solution is definitely there, but at the end of the day, how do you escape this issue? It simply doesn't seem like a problem that can be fixed without a radical solution...

I don't even know what I'm getting at with this comment, besides that no change is going to come until someone brilliant comes along down the road. It just seems like one of those variables that's ALWAYS going to plague the bicycle.....

In the meantime, I'll stick to my heavier casing tires and if I get a flat, f*ck it, Murphy's law, I'll live with it.
  • 1 0
 I used to grenade tires at an alarming rate. Then I accepted that I need to run double casing rear tires (and moderately beefy fronts-usually Maxxis EXO). I had one puncture that sealed with a Dynaplug on the front since then, nothing else.

Pros ride fast on rowdy terrain (and most riders don't) which makes for more punctures. Pros are also always looking for that last bit of speed and precision, and sometimes they cut that margin too thin with tire choice and setup (low pressures etc). Expensive, team only tires aren't a good solution-that would feed the bike industry's over-reliance on a handful of well-heeled consumers at the cost of excluding almost everyone else.

On that note, a shout out to companies that make tires that have held up for me-Maxxis, WTB, and Vittoria, keep making burly tires with tread options. The tires ain't cheap, but I can ride them until the knobs are greasy little stumps.

In the corner of shame-Conti (old UST Trail Kings were my fave, but the new casings are frail and the beads go loose on an alarmingly regular basis) and Schwalbe (THE WORST-my g/f and I got pushed into buying them from the LBS, and have had cut or torn casings on something like 15 of those bastards, variety of casings). Seriously, do German MTB trails have no coarse granite and/or shale?!
  • 1 0
 I believe it was Dave Weir who rides for Canonndale/WTB who said "If I run a tyre under a kilo I have to carry a tube- and I don't want to carry a tube."
I hear ya Dave!! Run heavy tyres, don't puncture, win all of the bitches.
  • 1 0
 Solid! I think he's Mark tho
  • 1 0
 @railin: hahaha You're dead right!! I used to pass on projects to an engineer called Dave Weir. Oops!!
  • 2 0
 Recently did the EWS on a hardtail. Absolutely wrecked my bike, wrangled my mech, my cranks fell off, but didn't get a flat all weekend despite riding sub 20psi and riding really heavy. Thanks Hucknorris!
  • 1 0
 New Maxxis 2.5 Minion WT is like a Rizzla. I weight 67 kg and manage to destroy the sidewalls of the tire in less than 10 runs and the threat is like 98%,like new. I like the tire but next time I´m looking at DD or hopping a new WT Tubeless DH casing cos regular one is shit
  • 1 1
 Maxxis exo tr casing is good for roughly 2 runs if you ride agressivly... if you were unlucky enough to buy a 3c one the tread will have peeled off by then! We seem to have them fail more from hard cornering (casing bulges and tyre deformity) DD seems to last a little longer, WTB tough casings are my favourite, apart from hardpack bikepark trails the vigilante is the best tyre out imo
  • 1 0
 LOL. Maybe if they'd run some actual tire pressure, this wouldn't be such a huge issue. F*#K saving 100 grams in tire weight just to "go that much faster". I'd rather have reliable tires. All day any day. Even when Im racing. Last time I had a real flat? Hmmmm.... almost 2 years ago. And I've raced 2 full series in that 2 years. ZERO flats.
  • 1 0
 Tire pressure and not running burly enough tires is most of the problem. I will get tubeless pinch flats, destroy rims, burping, and that feeling that the tire is peeling off the rim in hard corners if I run anything less than 30 psi in the rear and that is with a 29mm inner width rim and 2.5 tire. I have accidentally run less pressure and sure the traction feels better and the ride less harsh but once I really get moving and smashing through corners and rocks the soft tires begin to feel so squishy it is unnerving.

The impacts that my bike, suspension and myself can take should not be limited by my tires or rims. I have destroyed 3 rims (Easton ARC 30 no more) last season on impacts that didn't register at all on my "oh shit" meter and that should not be the case. So I switched to Flow MK3 rims and Gomas with the burly casing. So far so good.
  • 1 0
 for fun I compared what a 1.3 kg DH tire on a 29er would correspond to in tire weight on a 26" bike, while keeping the moment of inertia constant. Using a wheel weight of 1 kg for both sizes, the 26" tire weight was 1.8 kg. So, for race consistency maybe a smaller more puncture proof wheel is the solution Wink
  • 1 0
 It is only… logical (as Mr. Spock would say).
Weight is not the major factor to consider, at least from a point and ahead. This is quite important when your “weight savings” affect your safety (I’ve seen bikes damaged because the weight-phobic rider changed all the steel bolts with aluminum lightweight ones!).
As for the tires, I DO prefer the heavier, more reliable versions, which keep me away from the flats.
That’s all.
  • 1 0
 Interesting, i've thought for a long time that it's crazy that nobody has once and for all solved the puncture problem. I get so many punctures on my day to day rides (back in north wales anyway, lots of sharp rocks) that I'd pretty much go for anything that could 100% guarantee no more punctures. Unfortunately no such thing exists yet. Or at least, none that doesn't significantly compromise grip.
  • 1 0
 WC and EWS are two very different puncture problems in that there is an easy solution for EWS and none for WC. In EWS less climbing would lead to racers using heavier tires. They can't risk using too heavy ones now or they will be exhausted on the final stages. As for WC? New tech is the only hope!
  • 1 0
 I would love to see a new tire/rim system that would yeild better performance and/or durability than what's out there right now, because yeah, i don't want flats just as much as the next guy. I'm sure there's people all over the world right now tinkering and playing with new ideas but if the solution to this problem was easy, it'd already be done. We can't just simply make "better tires" - don't be too naive.

It's hard for me to complain about wishing I had some magic set of tires that don't exist
  • 1 0
 What are some thoughts on various other motor sports (Supercross, cart racing, etc.) being able to use whatever tires they want and others like Nascar and Indycar being required to use specific brands?
  • 3 0
 Not a racer, but two seasons on ProCore on both the AM and the DH bike. Not one puncture compared to 20+ per season before.
  • 1 0
 What casings, what pressures and what weight please?
  • 1 0
 @Uuno: DH casings on the DH bike and lighter on the AM. I can go down under 1 bar without any problem but then rolling resistance becomes a problem. Since the tire is secured to the rim there is also no burping.
  • 1 0
 Interesting read.. I go through this thought process everytime I ride and watch a race. With no definitive answer... One thing for sure is casing amd bead technology need to change. Locking beads anyone!!
  • 2 0
 The only reason my race results I've never been affected by a flat tire, is because I've never raced. So I guess, take that portion of the survey with a grain of salt guys.
  • 3 0
 So many flats, so many broken chains. when will Pro DH go to old 7 speed chains that are strong as shit and never broke
  • 1 0
 Hmm....this is why I love my old-school Duro 26 x 3 tires. 1800g each of burly goodness. Doesn't matter how sharp the rocks are or how many times I've bottomed them out (dozens) they don't flat, tubed or tubeless.
  • 3 0
 hands up who bought some mavic crossmax enduros and regretted it. no suprise they dont make them anymore
  • 2 0
 The strategy presented in the article is optimized for not coming in last. Probably hard to keep sponsors just by consistently not coming in last.
  • 1 0
 It's the old Downieville Classic debate between Weir and Moeschler. Suffer the heavier tires on the climb or risk a puncture on the descent. It's a calculated risk in racing. Every competitor gets to choose their set up.
  • 3 0
 Better tires in general needs to happen, not just for racing.
  • 1 0
 I think the heartbreaks caused by crashes and punctures are part of what makes cycling the most beautiful sport, whether that being XC, DH, road or any other discipline
  • 2 0
 just stick an IRC extra safe tube in run at 20psi, go ding ding ding and never worry..
  • 1 0
 Or run a 1.5 tyre inside the other tyre. That's what my friend did on his indestructible BMX. He was also running 71 spoke wheels. In fairness, the thing never broke.
  • 1 0
 I've the deaneasy tube plus in my trail bike, its a treadless road tubular at 140psi and only 120g a wheel. Similar idea Smile
  • 3 0
 Is it the tyre tech or is it the pressures people are running?
  • 10 1
 Tire choice + tire pressure. It's a balancing act. I used to get lots of flats. Shitty tires and low pressure. Last summer I tried a tire that weighed 1/2 of the minions I normally run, got a flat right away running the same pressures. Went back to the heavy ass minions. I'm not riding at a level where I need light tires. The only tire I'm looking at losing weight from is the one around my waist. Wink
  • 2 0
 i run at least 30 psi in tubeless setups with a double down casing. i am not close to the speed these guys go. i still manage to flat often.
  • 2 0
 I had so much fun checking out the prototypes from Michelin that I forgot what the article was about.
  • 1 0
 i cant wait to see some puncture proof tires. Maybe like the ones on the military hummers with the little holes through them.
  • 1 0
 I once got a flat because I forgot to check that there was enough sealant in the tire before the race... after fixing it I proceeded to have the fastest lap of the race.
  • 1 1
 It would be interesting to see EWS have a bike weight minimum similar to UCI road weight requirements. Then it's up to the rider to determine where the extra weight is allocated.
  • 1 0
 The secret is having two tubes, one inside the other, works a dream, I run it on the back of my Delerium and run 20ish psi and bash it into everything
  • 1 0
 Can we have a 4th option: "Occasionally, but I think my setup was the *wrong* choice"?
  • 3 1
 I lost my air reading that much
  • 2 0
 I loved this article. More, please.
  • 1 0
 Whats with the ridiculous poll about favorite bikes on the side bar? Get your shit together PB
  • 1 0
 They're not thorn punctures. not puncturing in mountainbike racing is a skill. it always has been.
  • 1 0
 enduro motorcycle racing, essentially the most difficult racing for a machine, uses Mousse everywhere. Use mousse.
  • 1 0
 I got a slit in my tubeless tyre this morning... No tools, long walk home Doh....
  • 2 1
 Filling your tires with hot glue is a great alternative to Stans sealant.
  • 1 1
 Ride it home on the rims! Ain't nobody got the legs for that heavy mousse crap
  • 1 0
 Junior top 3 at BDS also share £1k in cash.
  • 1 0
 Seems like higher pressures need to be run
  • 1 0
 Is part of the planned obsolescence
  • 1 0
 Uh Paul, make that Paul lol!
  • 1 0
 Wire bead DH casing, more PSI and better line choices.
  • 1 1
 What is this nonsense... Post a few more dh vids a day or something instead of an essay about flats...
  • 1 0
 Odd sized rims, much bigger tire out back, sorted.
  • 1 0
 i have only had one flat with tubless and i only run light weight tires
  • 2 3
 The tires on my bike cost more than the tires on my car. Punctures really shouldn't happen often at the pricepoint imho
  • 6 0
 Apples to Oranges.

Do you buy high performance car tires or the car equivalent of a $15-20 Kenda Kommuter to get you to work and back?

I have $20 tires on my commuter and $80 tires on my race bike...Pro MTB tires are $80-120ea and Pro Road tubulars are $120-200ea...
F1 and Nascar racers go through multiple sets of tires in a single race...$350-650ea, and they have 4 wheels!


Yes, fewer flats at any pricepoint would be wonderful, but people (racer or not) pay for rolling speed, traction, and weight too.

Maybe you need to buy some ultra cheap 1200g heavy duty tires and solid tubes and see how that does for you on the trail.
  • 3 0
 @dontcoast: you're absolutely right. I don't flat nearly as much since I stepped up to minion dhf and high roller for the back in tubeless. Solid casings, solid price, but solid tire. I also run ample pressure to ensure that my technical short comings are more than covered for.
  • 1 0
 @bholton: yep a good tire does wonders. nothing but the best for me anymore, when my body is on the line.
  • 1 0
 Heavy AF! lol Mike lol
  • 1 4
 Just set a minimum weight that the wheelset must meet. Basically the weight of a DH tire with a ton of sealant. Even the playing field.
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