Ask Pinkbike: Tire Casings, BB Compatibility, and Body Position

Dec 27, 2016
by Pinkbike Staff  
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Here at Pinkbike we get inundated with all kinds of questions, ranging from the basic "Can I have stickers" to more in-depth, soul searching types of queries like if you should pop the question or what to name your first child. Ask Pinkbike is an occasional column where we'll be hand picking and answering questions that have been keeping readers up at night, although we'll likely steer clear of those last two and keep it more tech oriented.



Casing Conundrum

Question: Pinkbike user ondrugs asked this question in All Mountain, Enduro and Cross-Country forum: Does anyone else have issues with Nobbly Nic tires and pinch flatting? And yes, I'm running them tubeless! I've had it happen about four times now, where the rim punches right through the side wall, just above the bead. It also doesn't seal up because of the position of the hole just above the bead. I've never had this kind of issue before, so I just wanted to see if it's my bad riding or if anyone else has had the same issue. I might try some Purgatorys again.

bigquotesYou don't say what casing type you're having issues with, but it's probably safe to assume that you're not using the most robust option. When I'm thinking about new rubber, I consider four factors: width (and volume), tread pattern, weight, and casing type. There are many tires that use the same, or at least very similar, tread pattern, but vary massively when it comes to the other talking points, so it's up to the rider to match those factors up with their needs. Simply put, it sounds like your casing of choice, and possible the tire's width, doesn't match your terrain and riding style. This isn't the tire's fault, of course, as that'd be like a downhiller complaining about a rough ride while racing his cross-country rig in the bike park.

My advice: play with air pressures before moving to tires with a sturdier casing. Get yourself a proper tire gauge to be sure that you're not running them too low, and if you find that you need to run more than 30 PSI to keep them from cutting, then get a tire with meatier sidewalls. If you like the Nobby Nic, simply move up in casing strength from whatever it is that you have now. Schwalbe lists the Nic as being available in four different casing options, with the Double Defense being listed as the most robust and the Liteskin being the least, so bump up to the former. Still not enough? Consider something with a Schwalbe's Super Gravity casing instead.
- Mike Levy

Schwalbe Nobby Nic 27.5 x 2.35 - 2015




Will an Eagle Drivetrain Work on My Bike?

Question: Pinkbike user @waltonracing asked this question in the Bikes, Parts, and Gear forum: I have a 2016 Yeti 4.5. I want to update to the XX1 Eagle groupset. I have a PF92 bottom bracket now with Race Face Turbine cranks, and according to the SRAM web site it won't fit the PF92. What is everyone doing to make this set up work?

bigquotesSRAM's Eagle drivetrain is compatible with PF92 bottom brackets, along with just about every other style of bottom bracket out there - I'm not sure where you saw that it wouldn't work. SRAM does refer to their PF92 bottom bracket as "GXP Pressfit" - perhaps that's what threw you off? It is true that your Race Face bottom bracket won't work with SRAM cranks due to the spindle designs, but that's typically the case with cranks from different companies.

It's worth mentioning that Race Face bill their narrow-wide chainrings as being 12-speed compatible, and although the aluminum Turbine cranks weigh approximately 100 grams more than the carbon X01 cranks, running them with the rest of the Eagle drivetrain would be an easy way to reduce the cost of upgrading. - Mike Kazimer

Eagle SB4.5
It shouldn't be too much trouble getting SRAM's Eagle drivetrain to work on a Yeti SB4.5.




Body Position

Question: Pinkbike user @foxprodigy asked this question in the Downhill Forum: Hi all. I'm practicing body position by holding it on a bike at home. The problem is, in 30-60 seconds my quad and knee on my back leg start burning ... So, I can't stay on a bike more than two minutes in a static position. What can I do with this, or it is ok?


bigquotesOther comments responding to your question suggested that some strength training may be needed to solve your achy issues, but if you can't hold a track stand in a riding position for a few minutes, I think you have an issue with relaxing and having a comfortable position on the bike, not a strength issue. If your quads and knees are burning, you may be standing or pushing through your toes into the pedals and tensing; the key, on any pedal type, is to be able to relax your leg muscles so the weight of your body drops into your heels - if you can't drop your heels below the height of your pedal axle this could cause problems with balance and keeping your feet on the pedals in rough sections.

Without seeing a picture or video, it's hard to make a full analysis, so you could check this yourself first by comparing your position to that of riders in videos or photographs. Secondly, bikejames.com has some great videos and instruction on body position and the trailtips.ca app offers free advice if you use their app and post your videos on their Instagram page. - Paul Aston


Sam Hill
Pro riders on flats are the best to learn from; there is no hiding weaknesses in technique by clipping into the bike. Sam Hill heels down, relaxed, strong, and charging, all at the same time.






Have some unresolved tech questions? Jump in the Pinkbike Forum and we'll look to answer it for next time.


134 Comments

  • 94 1
 Will Eagle 1 work on my Schwinn Sledge Hammer?
  • 25 0
 Only if it's the model with pegs and front shocks.......
  • 28 2
 Can I put a Fox 40 on my mongoose?
  • 14 6
 Is eagle worth the money.............. moving on
  • 22 0
 have you taken it off any sweet jumps?
  • 10 0
 He did and he got like three feet of air
  • 4 0
 ha' someone got it Big Grin
  • 2 1
 HUFFY CARNAGE bitch
  • 1 0
 @scottythebiker: hell ya huffy carnage all the way
  • 2 3
 So, I get the satire, but....Can a Schwinn sledgehammer beat a dentist on an ibis down the hill....Hell yeah! Skills not bills...This site is full of yuppies with too much money trying to retain their predental trust fund bro attitude. Go ride more(testicles attached), clean teeth less! Rant over....
  • 1 0
 @takeiteasyridehard: teeth cleaning is serious business mate. Not a joke. Very sensitive subject around here.
  • 2 0
 Yeah tooth decay is pretty gnarly man
  • 40 2
 "Pinkbike user ondrugs asked this question." Goodjob internet.
  • 79 53
 schwalbe tires are garbage.
  • 30 4
 Have u tried the magic mary in its 2.35 800g ish version?
  • 13 5
 Grip is good durability is non existent. Had 2 MM's this summer with snakeskin and ended up tearing off side-nobs and punctured both of them before going back to my trusted DHF. Also looked at the Super Gravity casing and it was super heavy for AM.
  • 12 21
flag patpero (Dec 27, 2016 at 15:26) (Below Threshold)
 Better have Walmart tires than Schwalbettes
  • 12 5
 Those 4 words could have replaced the 2 paragraphs of nonsense.
  • 28 2
 tell that to my trailstar mary which has lasted 12 months of trail riding including a handful of park days with zero flats, or burps, haven't even refreshed the sealant.
  • 7 3
 I switched away from Schwable to Bontrager. The XR4 is basically a cheaper Hans Dampf that actually has durability. I managed a whole season of serious riding plus 3 enduro races on a single set of XR4's.
  • 14 2
 My Magic Marys are noticeably better than Garbage and would get them again over the dozens of Maxxis I've been through over the years. Would also try e13 and Convicts from what friends are saying.
  • 2 1
 @ratedgg13: xr4- my front tire of choice this year
  • 5 1
 @endlessblockades: i agree...mm side knobs seem to last way longer than dhf or hr2. Centers seem to have an initial early ISH wear but then hold on to mid life for a good time.
I want to try the maxxis agressor rear soon.
  • 12 0
 The guy was probably using "performance" line version
  • 2 0
 @ratedgg13: SE4s are probably a better choice for enduro racing.
  • 8 5
 agree 100%. Only decent schwalbe tire is the magic mary super gravity. Other than that, it's flat city, flat flat city.
  • 2 1
 @ratedgg13: the XR-4 is a good tire but it is comparable to the NN, not the HD - I run it as a back tire in the summer with an HD up front and it usually gets me through 3-4 months of riding (maybe a month more than the NN with slightly more grip and rolling resistance but slightly less breaking power...YMMV...
  • 3 0
 @AaGro: fair enough - though I find the xr4 grips better than the NN so thats why I make the comparison. I havent found the need to move up to the GS5 or similar from XR4s and I did come from the Hans Damfs. Maybe its just the terrain or my riding style. Either way though, better than Schwable haha. Curious about the new E13 and Vittoria with Graphene tires...

@ReformedRoadie Normally I would agree but I have yet to have my XR4's fail even during enduro racing (and I am around the 180-190lb mark) so I'll stick with the XR's better traction until I find an issue.
  • 1 0
 Try setting them up split tube and see if that works. I have 5-6 big dents in my back rim and never pinch flatted the tyre despite running some quite light tyres. Also rim width may help as im on 30mm internals.
  • 2 0
 @wolf-amongst-lambs: totally agree, having run the performance version the sidewalls are paper thing and easily damaged. The thicker ones are much more durable.
  • 1 4
 They are notoriously bad for sidewalls ripping. Ive given tubes to several people riding them who have torn their sidewalls. No idea why anyone runs them over the other options anymore.
  • 2 1
 @ratedgg13: Why would the XR4 have better traction over the SE4? Same tread, softer rubber, and more supported sidewall?

I want to try the Vittoria's but I have read repeatedly, that they are really bad in the wet.
  • 1 0
 @ReformedRoadie:
Think I accidentally neg propped you, sorry.
They do have slightly different rubbers (the XR4 is ightly softer) so it grips a touch better especially in the wet. also I forgot to mention that the XR4 is 120tpi so much thinner sidewall and lighter (about 140g per tire) so if I'm not having sidewall issues I may as well save myself some serious rolling weight.
  • 1 0
 Tires. This is tough because there are so many variables to performance (air pressure, trails. riding style, width, etc). Having said that I switched to Specialized's Butcher on front and Purgatory on rear and they are fantastic. You have to run slightly higher pressure (23-25 front, 25-27 rear), but they are light weight compared to most, durable, really good traction, and less expensive. I ride North Shore on an AM 150mm/140mm setup with a vorsprung corset on rear.
  • 1 1
 Every Schwalbe tire ive ever owned came out of round and wobbly. Never had that problem with Maxxis. Ill never go back to Schwalbe ever, quality control is non existent.
  • 1 0
 @ratedgg13: how do you not flatten those things like balloons at your own birthday party!?! Se4/5 are the next step up and are effectively EXO casings and I still can't keep air in them.
  • 1 2
 Glad I'm not alone on that. 3 sets of tyres from one of the supposed "premium brands" 3 failures all pretty dramatic! 2 sets of Ultremo DD's dead in under 200 miles with sidewalls literally falling apart. The sort of thing you want when running 100 psi at 25+mph Then I thought I would give them one last chance with a set of Super Moto-X tyres. The inner tube failed at 45psi (not their fault) but it literally tore the sidewall out! Before I even fitted it to the bike, let alone ride. WTB, Michelin, Continental I won't stray again! Never again Schwalbe
  • 2 0
 @Wilovanny Might be rider-related
  • 1 1
 @Wilovanny Except that garbage is dependable, as in, you know what garbage is when you see it. Kind of why I don't trust products with "magic" in the name.

... Well, I trust Magic the card game to continue being a card game.
  • 1 0
 One of the best things I've ever seen posted on pinkbike
  • 1 0
 @dimetera413: I had this with Maxxis HR2s
I initially thought the wobble was because the way the tire was folded in the box and would ride out once on the bike. But no.
  • 1 0
 @StackingItSince1991: If you are running tubeless, the tire probably isn't seated correctly! I did this once and thought I had to get a tool to straighten things...but it just off a tiny bit and it made all the difference.
  • 1 2
 @StackingItSince1991: probably off on the rim. Very rare for maxxis tires to have a wobble that bad.
  • 1 0
 Seated with a compressor, MM Supergravity Trailstar = fast, round, and grippy. No durability issues.
  • 2 1
 Schwalbes are for Shwabbles
  • 3 0
 @atrokz: No they were deformed. I took them into a bike shop and they confirmed this.
  • 1 0
 @Rainozeros: ...but they don't fall down.
  • 2 0
 You do know that Schwalbe means Swallow in English, right? No....like the bird. However, there was a bar in my city for many years called The White Swallow. There were no birds involved. Genius.
  • 33 8
 Rock on Sam hill that picture shows a true mtn biker
  • 48 17
 If I could only ever understand what you mean with "true mountain biker". I envy you that you get it. I don't. I hope one day, the secret of joining the pure race will be revealed to me.
  • 22 0
 @WAKIdesigns: because he has a helmet and appears to going fast
  • 9 4
 How does riding flat pedals make him a "true mtn biker"?
  • 13 1
 @WAKIdesigns: Not sure, but limiting online time blathering non-truths might be a good way to start. Shall we jump in together? Maybe there will be badges for us it we achieve "trueness"?
  • 6 0
 True as in straight, not bent..
  • 3 2
 @Earthmotherfu: i see what you did there...
  • 4 0
 @WAKIdesigns: you actually have to get off the computer and go out and ride your bike to understand it
  • 28 4
 Purgatorys...hell of a tyre.
  • 5 0
 I see what you did there...????
  • 3 0
 Purgs burnt me too many times
  • 3 1
 Lukewarm.
  • 14 3
 I checked a few online schools and for bike position Lee McCormack is hard to beat. Lee just has it boiled down like no one else in an easy to grasp form. Buying his book is the first thing to do, but checking out his website if only for a month is 19bucks you will never regret spending. Llbmtb.com Another great resource for body position is Gene Hamilton at Betterride.net but you'll need to browse a lot through his blog to find what you are looking for. I train according to James strength programs but Lee has the skills teaching more dialled. IMHO.
  • 1 0
 Thank you
  • 1 0
 I'd say they are almost definitely too crouched in their standard position and trying to hold a squat like position he whole time
  • 3 0
 Lee Likes Bikes. Boulder, Colorado legend
  • 2 0
 I did 2 Betterride camps. They focus on hands, feet, body position. Made me such a stronger rider!
  • 1 0
 @msmtime: +1 on the betteridea camps. Did a 3 day DH camp with Gene about a year ago. Was having consistency issues, riding fine one day, and horrible the next. Since the camp I can honestly say I haven't had a bad day (technique wise) since.
  • 1 0
 @twd953: A bad day to a mountain biker? Is that like when I'm so tired from work, when I come home I don't even go to the garage and look at my bikes, I just go to bed?
  • 1 0
 @XCMark: just keep a bike in every other room and if anyone moans, tell em to knob off..
  • 10 0
 Paul Howard of Zep Techniques showed me this:

If your quads are burning you're knees are bent too much. Try this - off the bike, squat with a deep bend in the knees and see how long you can hold it. Now stand up and squat down to a point just before your knees start to give way (should only be a slight bend to the knees) and hold it; you can hold it MUCH longer. Keep this position on the bike as much as possible (you'll need a deeper hip bend). Your quads will go way longer without burning and you'll have more pop when pumping as well.
  • 9 1
 A problem with a lot of cyclists; too much knee bend/ reliance on quads and not enough hip bend engaging glutes and hamstrings. The former leads to problems and the later opens up a whole other level of performance on a bicycle. Happy trails.
  • 1 0
 So what if it is your hamstring that starts burning at holding the ready position for two minutes? Any advice would be really nice.
  • 1 0
 Good advice, cheers!
  • 7 1
 Yes, straighter legs and more bend at the hips. Greg Minnaar is a master at it. Check out how high he carries his bum. Improve that hip hinge and hip thrust. For your riding and for your woman.
  • 4 0
 You mountain bike in the deadlift position, not the squat position.
  • 3 1
 @LaXcarp: booom! Is that what makes people think they need a dropper with 170-200mm of travel? Big Grin
  • 7 1
 The Nobby Nic in 27.5x2.35'' is listed on Schwalbe website as 720grams, a 3C Exo Maxxis Highroller 2 in the same size is 915 grams... The Nobby Nic is a super aggressive XC tire, what did you think was going to happen?
  • 5 0
 Tubeless Nobby nic dd on an Easton arc 27, I 've put dents in the rim but didn't flat or cause any damage to the tyre at all, maybe it's more than just the tyres and also something to do with the rims, do hookless rims or stiffer rims suffer more with snake bites?
  • 3 0
 Yes according to a race team mechanic I know. One of the reasons pro dh riders use a lighter weight rim is for more deflection which in return offers more grip and less punchers.
  • 3 0
 "I can't stay on a bike more than two minutes in a static position. What can I do with this, or it is ok?"

The real question is, why would you want to be in a static position on the bike in the first place? Good body position on the bike isn't static. Watch any video of pro riders (hundreds to choose from on PB) and you won't see any of them going down the trail in an attack position frozen like a statue. A good good centered/balanced position is the starting point that you use to work through your full range of motion. Take pumping through rollers for example. As you approach the top of a roller, your arms and legs are bent to suck the bike up underneath you, and then extended as you pump down the back side. Nothing static about that. The more dynamic you are on the bike (pumping, hopping, manualing, bump jumping) the less burn you will feel from trying tense up and hold a static position.
  • 2 0
 Had the same issue with a couple of snakeskin Schwalbe tires, decided to go with SG casings and problem solved. Apart from racing at Plattekill, where I double flatted, I may have had 2 other punctures over 2 seasons on SG tires
  • 3 0
 I have a buddy that keeps puncturing rear tires. I kindly inform him every week he needs to run more air pressure but it just blows his mind. It amazes me how poorly some people are at comprehending the simplest things.
  • 4 0
 My hans dampf with snakeskin sidewalls also "pinched" several times last season. Grippy tire, but not rugged enough.
  • 3 0
 I've never pinched my snakeskin hans dampf or rock razor but I don't ride much rocky stuff. However the sealant still seems to be perforating through the sidewalls (all over) even after 3 - 4 months so they must be quite thin.
  • 7 0
 @tremeer023: My sealant "weeps" through the sidewall as well!

I don't know about where you live, but here in Utah rocks are whats mostly on the menu, destroying both tires and P-Tex
  • 3 0
 @hamncheez: south of England is generally soft with some chalk. Utah sounds like DH casing territory to me.
  • 3 0
 Rock razor snakeskin as a back tire on Garda Lake, tubeless, lasted not even 1 descent. Need more sidewall
  • 9 3
 My advice: get off drugs
  • 2 1
 I run Exo casing on Maxxis tires and still have to run 35+ PSI to avoid dinging the rim and tearing the bead causing flats... and Im 145lbs geared up. Where I ride (Pisgah) its pretty rocky with alot of high speed descents. I just learned to ride with higher pressure and my rims and tire budget thank me... We all cant run 20PSI like some folks do...
  • 6 0
 you could if you ran the DD casing tires from maxxis, singleply tires are shit!
  • 3 1
 ...or you can run procore and not use too wide a rim and you can still air down to 20 psi if you want.
  • 1 0
 I live and ride in the heart of Pisgah, weigh 150lbs, been running Exo casing with no issues at 24ish PSI, no issues. To each their own I guess.
  • 2 1
 EXO is not enough for enduro bikes if you ride hard at all in colorado. It took me three ripped casings to figure that one out. I run a full DH casing in the rear. I still have exo up front and it is doing fine. rear tires live a very tough life for me.
  • 1 0
 @y9pema: DD casing is nice but damn they're heavy! haha Still way lighter to go with EXO and run higher pressure. Im as fast now doing that as I was at 25psi dinging rims... just took some getting used to.

@LaXcarp: I tend to pull hard in the rock gardens (i.e. Spencer Branch) and just jump all but the biggest ones. Slowing down and picking lines would help but thats no fun haha. Its all about speeeeed... I charge into them and find that at 35PSI i save tires, rims and everything. Been on the same Minion DHR since June. I used to run 25psi but the faster I got the worse off my rims/tires were.
  • 1 0
 @Banjopickin: Spencer branch has rock gardens?
  • 1 0
 @LaXcarp: haha a couple... someone went and ruined a perfectly good flow trail by putting random tombstones in it. Guaranteed to ding your wheel or your money back!
  • 3 2
 I have to disagree with Mike Levy on the tire thing.

Firstly I'm just done with Schwalbe. They're expensive and Ive had more than one tire blow up in the first 3rd of a ride and the ones that do have sidewalls that survive wear down ridiculously fast. Admittedly I'm a big dude who is not light on my bike and my local trails are extremely toothy in places but Spesh, WTB and Maxxis fare way better.

Secondly. I can't run even close to under 30psi. I have to run at least 35 to avoid pinch plats or rolling my bead off the rim. I'm not the only one that runs high psi's. A couple really fast dudes that I ride with run roughly the same. I just can't get my head around people running pressures in the low 20's Smile
  • 4 0
 Try riding one of the Pacific North West's classic rooty, rocky and woody fall line gravity trails after 3 straight months of rain and you would be airing down pretty quickly after your tires slide out from under you for the 3rd straight time in as many minutes.

On the other hand, if you are riding smooth high speed berm, flow, and jump trails or smooth rolling cross country, then 30+ psi may be the hot ticket.
  • 4 0
 I used to be the same until a friend explained the benefits of dual ply tyres to me. Now run under 25psi front and rear. Yes they are heavier, but the increased grip and rim protection makes up for it.
  • 3 0
 Tire pressure is so dependent on weight. All these people claim to run 25 PSI or less but whenever I drop below 25 PSI I've written my rims off on the first rock garden.
  • 3 0
 @j-t-g: exactly. PSI = Weight in pounds / 7 + 3. Someone posted that on PB ages ago and I checked and it was exactly what I was running, though I have 3 psi more in the rear tire.
  • 3 2
 @Dustfarther - agreed on Schwalbe. Utter rubbish when it comes to durability throughout the whole range. But if you need to run high pressures to stop the tyre from burping/rolling then you should consider upping the casing thickness. Weight penalty is much smaller than it seems and stability as well as puncture resistance go up. I will never get why there are tyres like Magic Mary in single ply casings...
  • 2 0
 @WAKIdesigns: or run wider rims. I'm down at 20 psi with DHR2 and 30mm internal. That's in southern England with small hills and no rocks.
  • 2 1
 @fartymarty: but everyone is on wide rims these days, no? Smile
  • 1 0
 @iamamodel: if thats the case, then i need to run 41.5psi!
  • 1 0
 I've put a lot of miles on Snakeskin NIbby Nic's and have cut them in the manner described above when riding fast rocky trails. Even in snakeskin, they are on the thin on the sidewalls for aggressive riding. The Hans Damph with the same casing has significantly more protection but you pay for it with weight. I still run the NN, just have to be aware of the fact it's a lighter cased aggressive tread tire.
  • 1 0
 I have never done that body position exercise, am I missing out? will it make me faster just standing on my bike?
Body position is about form, balance and core stability. Without all 3 (core stability being the most important) there is no point.
At no point is it about holding the same position for 2 minutes!
Just saying and I am an OK rider.
  • 4 2
 "Body position...practicing...at home...holding it...30-60 seconds...cant more than 2 minutes...what can I do with this?"

Damn.
  • 9 2
 Can't hold position for sixty seconds? Have you thought about maybe taking up golf.
  • 1 0
 The snakeskin protection on nobby nics doesn't seem to go all the way down. I've punctured twice on them by having a sharp rock slide along the protected casing then punching through right above the bead.
  • 1 0
 The snake skin new nobby nic is super thin compared to some of the others. (Hans, MM, RR) Definitely thinner than a TR maxxis too. On the trail bike I can get away with a snake skin MM on the front but definitely need a super gravity for the rear. I have been running super gravity MMs front and rear on my DH bike no problem.
  • 4 0
 Doggy or missionary? Which positions best
  • 5 0
 It doesn't matter if you can't hold it for 2 minutes
  • 7 0
 @scottzg: wait 2 min is bad??
  • 6 0
 Reverse cowgirl. Save your energy for biking.
  • 1 0
 @scottzg: I have the stamina like mclovin (superbad)
  • 3 2
 I ride mostly trail with a little bit of all mountain and light enduro. Ive tried magic Mary's and was wondering if I get the sticky stewarts in a higher durometer DTC casing in 27.5+ WILL I EVER GET LAID?
  • 1 0
 I've had no issue with scwalbe hans dampf trailstar and pace on the back but I only weigh 11 half stone does that make a difference.
  • 2 0
 "Pinkbike user ondrugs asked this question," could you be a little more specific?
  • 4 1
 first question PB user on drugs....
  • 1 1
 If it is only your back leg that burns it sounds like you are leaning too far back. You should be light in the hands. This is the best que I have heard about body position, that I got from a Shaums March camp.
  • 1 0
 Don't do drugs it take ages to get of em you can look as fit as a fiddle hold a job down , drive , ride your bike .But it's is worth it.
  • 2 2
 Maxxis Maxxis Maximus.. Maxxis Is there no other tire brand Pinkbike enduro type riders prefer? I gots to know.


Maximus.. maxxis wtf
  • 1 0
 Minion DHF is always the answer.
  • 4 2
 singleply tires are shit!
  • 2 0
 Danny hart'so on maxxis came of swalbes
  • 3 1
 Ride lighter easy
  • 1 3
 easy? never
  • 1 3
 I use Schwalbe Nobby Nic in Performance compound in the rear of my hardtail, tubed, running 40 psi. Never had any problems. I ran 37.5 for a couple of rides but I increased it due to my aggresive style
  • 1 1
 If you lay off the drugs you will realise Schwalbe tyres are complete shit.
  • 1 0
 When the full list of advent calendar winners is coming out !!???
  • 1 0
 Why is everyone so f*cking stupid? Why cam't people be smart, like me?
  • 1 2
 lololololo ha ha ha ha

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