Atomik Debuts New Technologies in Carbon Wheelsets

Apr 22, 2017 at 3:22
by Vernon Felton  
photo
The AM 35 is the crowd-pleaser, all-mountain wheels.

Remember when carbon wheels were as exotic as unicorns? Yeah, me neither. You can’t walk five feet through the Sea Otter Expo area without tripping over a new carbon wheelset from a company you’ve never even heard of before. It’s like someone is just handing these things out as party favors. All you need is a sticker kit to go into business selling wonder wheels.

I exaggerate. A little.

There truly are an insane number of new carbon wheelsets on display here and the good news is that the prices, on average, seem to be coming down a bit. Don't get me wrong—you’re still going to auction off your firstborn to get a set, but now you don’t have to toss in the family dog to sweeten the deal.

All of which leads me to some of the new wheels floating around Atomik’s booth. Atomik has been around for a bit—but they’ve definitely got a few new tricks up their sleeve.

Let’s start with the AM 35—while this wheel isn’t full of suprises, it’s probably the one that most people will immediately gravitate towards. Available in both 27.5 and 29-inch versions, the AM 35 is an all-mountain wheel with an external width of 35 millimeters. Internal width? 28 millimeters. In other words, it’ll give good support to a tire in the 2.5-inch range and will definitely work well with all the existing 2.3 and 2.4-inch meats out there. There are lighter wheels out there—Atomik chose to put their eggs in the durability basket. You’re looking at 1,810 grams for a set of 27.5-inch AM 35s with DT Swiss 350 hubs. Cost? $1,350 per set. The rims weigh in at 460 grams (27.5) and 480 grams (29er) and sell for $435. You can expect to see them on the dirt by mid-May.

photo
According to Atomik, the insertion of a high-density foam strip during lay up helps make a stronger, less flexy wheel, despite the rim's crazy-low profile.

The rim that strikes a more daring pose is Atomik’s $1,660 Chubby 43. The 1,890-gram, 27.5-inch wheelset has an internal rim width of 36 millimeters. In other words, it should work a treat with 2.5 to 3.0-inch tires. The Chubby 43’s most obvious point of distinction? The wheels’ crazy-short rim profile—less than 15 millimeters, to be exact. The engineers at Atomik point out that rim flex tends to be a problem when you build a rim that’s less than 25 millimeters tall.

sea otter
So, how did Atomik get away with such a short rim profile? They inserted a high-density, aerospace grade strip of foam and mold it into the carbon rim itself. According to Atomik, the foam help distribute impact loads, damps the impact you feel in rough terrain and adds a degree of compliance. While foam cores have been used in some bike components to date (crank arms come to mind) it’s the first time I’ve seen it used in carbon rims. Atomik claims it’s a proprietary, patented procedure.


Now, for the even geekier portion of this post…

photo
Atomik is working on a freehub mechanism that looks a lot like DT Swiss’ well-loved star-ratchet system, but which (unlike DT Swiss’s design) eschews a spring in favor of magnets. There are damn few moving parts in the mix on the magnetic drive hub, which may lead to enhanced durability and, reportedly, drag is exceptionally low in the system. Atomik is looking to roll out the technology this fall in a road wheelset that’ll feature 36 points of engagement. When will they bring out a mountain version? It’s anyone’s guess. When it does hit the street, it’ll probably feature a few more points of engagement.


Author Info:
vernonfelton avatar

Member since Apr 11, 2014
202 articles

111 Comments
  • 107 19
 Since Aaron Gwin did a complete Leogang DH race run with no tyre on a standard ALU DT Swiss rim ($100). Threre is no need to look further, than ALU rims. I want to see this with carbon rims. Until then, I don't care about carbon wheelsets.
  • 37 25
 He could probably finish the race on a carbon rim just as well...
  • 22 3
 Seriously. $100-150 will buy you a top of the line aluminum rim, which is really so close to a top-end carbon rim that mortals probably wouldn't notice a difference.
  • 21 2
 @WAKIdesigns: ...."Probably" and maybe not. Maybe it would shatter to pieces on those rough sections. That's why i want to see this with carbon rims.
  • 10 1
 You know alu rims have failed before, right? What if gwins rims had failed on that infamous run? Like last world Champs?
  • 14 3
 Take any kind of rim made out of any kind of material, if it dies under Aaron Gwin or any other top pro rider on a world cup track - it's natural causes. Now both aluminium and carbon rims get wrecked under all sorts of riders - it's a nature of MTB. However aluminium rims, even the most expensive of a kind, are cheaper to replace than even the cheapest carbon rims. In case of gravity MTB, the performance gains of carbon over alu are minimal. Especially with regular 27,5 wheels.
  • 11 5
 You do know that a good carbon rim is much, much stronger than a good aluminum rim right? Show me an aluminum rim that can withstand nearly a half a ton of force before it breaks.
  • 2 3
 @krazieghost: his rim didnt fail, it was a puncture at the start of his run that caused the problem.
  • 4 18
flag DaFam4mDena (Apr 22, 2017 at 7:48) (Below Threshold)
 @WAKIdesigns: no dum dum, carbon breaks when introduced to rocks
  • 8 2
 @DaFam4mDena: yes I can read it on Pinkbike almost every day since at least 2010. Join the movement
  • 24 1
 Anyone that says there is no noticeable difference between Alum and Carbon rims has never ridden a set of carbon rims.
  • 13 0
 On a 29er, my cheap Nexite carbon rims (that probably weigh about the same as higher end aluminum) accelerate noticeably better. They also flex less, but aren't overly harsh.

The biggest benefit is that they have been significantly more durable than any aluminum rim I've ever owned. I usually average a few dents in my rims each season (Utah is very rocky). I also have to true them several times a season, and after a good ding they never stay exactly true. They are certainly rideable, but thats the nature of alloy .

These cheap carbon rims are as true as the day they were laced up. No dents. No flat spots. They just work!
  • 2 1
 @hamncheez: I have also read from people on this forum, that they had to replacce 4 Nexite rims during one season. Now where is the truth?
  • 2 0
 @mnorris122: guess that makes me immortal then?
  • 4 0
 @hamncheez: This is precisely why I have gone carbon too. Not for the weight or the bling but for the durability.
They never get flat spots or go out of true.
I've also had more complete failures with aluminum rims than carbon.
And no. I'm too stupid to be a dentist or a lawyer Smile
  • 1 0
 @IluvRIDING: I broke a Nextie rim last summer. Rode way too fast with way too low tire pressure straight into a nasty rock section. But here's the catch: a friend repaired that rim for 50€ and now it's as good as new. You can't repair a cracked alu rim and straightening a bad dent isn't always a sure thing.
  • 3 2
 So funny how people will drop thousands on a carbon frame 'for its ride quality and weight' and yet when a carbon rim is offered (which dramatically improves a bikes ride/handling characteristics) they scoff because an alloy rim is 'good enough'
  • 6 9
 I'm getting sick of this hype over carbon wheels. They're not as good as they're made out to be! They're far more expensive than aluminium and quite frankly, they offer no advantage (actually a disadvantage) when it comes to downhill speed and very little difference uphill too (100-150g over a wheelset is nothing to write home about). They're too stiff, so ping around far more and compromise grip and therefore speed. I had a set of SRAM Roam 60s and folded the front wheel in half turning into a corner and the rear is cracked too. Now on a set of 32 spoke Stans Flow Mk3 and life is good again.
  • 2 1
 @WayneParsons:
...yet will crack/split/delaminate'FAIL when directly impacted by your average sharp-edged rock
  • 2 3
 @niilo: yea, it's just that a brand new high end alu rim costs 80€...
  • 1 0
 @YoKev: we have tests that show that it doesn't. Some carbon rims aren't built very well, this is true.
  • 3 0
 @IluvRIDING: Can you name who? I'm 210 pounds naked, prob 15 pounds more with gear, and I ride my carbon 29er rims on what I used to ride a DH bike on. No issues ever.
  • 2 0
 @hamncheez: Sorry, I can't find it. I think it was in the Reynolds wheelset review discussion.
  • 2 0
 @Tmackstab: alloy frames are 'good enough' too.
  • 1 0
 @WayneParsons:you don't need to care about anything above a quarter of a ton..anything that is stronger than that is anyway stronger than you...if an alu rim brakes at 250kg (example...no idea) and you buy carbon because it can witstand 800kg...I don't see the advantage knowing that your legs will snap at 200kg
  • 1 0
 @TheLongMan: Its simple. The carbon rim can withstand huge forces but remain flexible and 'snappy', therefore smooth to ride. You can engineer in almost any trait you want while retaining strength. You can do that with aluminum, but you don't have the same degree without sacrificing something.
  • 1 0
 @WAKIdesigns: True, but then you need to rebuild your wheel. In my case I didn't even have to loosen the spokes for repair. But it depends how badly the rim is broken..
  • 1 0
 @mnorris122: You might want to add 3x the cost of those alum rims before you're starting to touching carbon.
  • 1 1
 @getonyourbike: Got a notification about this. I bet I'd get positive props for this comment from 3 years ago if I wrote that now.
  • 42 15
 Anyone else getting sick of these carbon rim reviews that cost as much as a mid level mtb because I for one am!!! There is absolutely no reason to be charging this much other then greed!! Carbon is not some special thing that's really rare at all, its a bunch of resin dumped on to fibres for christ sake!! I don't support greed so I'll never support carbon stuff until the industry stops with the exotic bs gimmicks. #BoycottCarbon
  • 7 0
 I've stopped caring. I had the epiphany that since I'd need to replace my entire bike since it doesn't seem any carbon wheels are available that fit my "archaic" 2013 bike
  • 10 0
 @robwhynot: plenty of companies still make 26" and wide 26+ carbon wheels, Light Bikes, Derby and Nexite to name a few. And their price is decent too.
  • 2 2
 Yes!
  • 17 3
 This website has amazing free content. If you're sick of it don't click, and if you do click, keep it to yourself.
  • 1 9
flag endurocat (Apr 22, 2017 at 7:01) (Below Threshold)
 #Boycottcarbon until gets cheaper.
  • 9 4
 I just got my first set of carbon wheels. Nox Teocali. I felt a little guilty (honest) but the ride and weight savings is dramatic.

The feel is incredible.

As for weight—the Nox is 26mm, I can ride Minions, and has 32 spokes. To get the same weight performance in Aluminum, I have to drop to 19mm width, Racing Ralph tires, 24 spokes—a very flimsy unstable wheel.

I consistently dropped 15-45 seconds on many of my local Strava segments.

For racing, or if you consistently ride 20+ miles I'd say it's worth it.
  • 7 2
 Phony outrage
  • 10 1
 The reason they cost so much more is the manufacturing costs. Aluminum rims are all extruded, cut to size by the bundle, then are pinned or welded together by some machine. There may even be an automation process for sanding the welded or butted seams, but the entire process is nearly automated. Carbon is an much more human intensive process, not to forget you're only getting one wheel out of each mold. Not arguing if carbon wheels are better or not, that's for each manufacturer to science the hell out of. But for everyone to keep arguing about price is silly. Until some super genius finds a reputable way to make this system automated, don't expect a major price jump any time soon.
  • 13 0
 lol BoycottCarbon. If it was all about greed you wouldn't be able to get carbon rims that are half the price of Enve and yet give the same or similar level of performance. I think pointing the finger at every carbon item and shouting greed is a little narrow minded. The things you can do with carbon are amazing given its strength to weight ratio but fancy things come at a cost. There are many things I can't afford but I'm not gonna start crying at every mention of them but then, I quite enjoy seeing advancements in bicycle technology and I would like to think that I'm pretty open minded about such things. It's a shame how people can't get past the cost, whether they can afford it or not.
  • 6 1
 @miralas: Informative comment that will get ignored by those hell bent on jumping on the "mwaaaa carbon's so expensive whaaaa" waggon
  • 5 1
 To come out with a carbon rim takes quite a lot of engineering, machinery, testing, and failures. Molds have to be machined, materials have to be bought. Slight lay up changes can make a huge difference in the final product, sometimes those changes work, sometimes not. The degree of manufacturing is quite a bit larger in carbon than in aluminum. Its not even debatable.
  • 4 6
 @miralas: also, if xyz biz is located in a high tax area, (leftist gov) then expect that to show in price. Customers pay that, companies do not.
Greed? Snowflake?
  • 2 0
 @kennyken1015: I know lol. I haven't commented in a while, so I figured that would be a good start to knocking off the dust. Thanks for acknowledging!
  • 2 0
 @jrocksdh: Wouldn't consumers pay this tax regardless the material?
  • 2 0
 Not getting sick of em, just getting sick of these comments. You say greed is the absolute reason why they charge these prices. What about the cost of labor? Cost of transporting goods overseas? The fact that they need to modify molds or create new molds?
  • 3 0
 @reasonable-person: check out We Are One Composites. 100% engineered and manufactured in Canada carbon rims, using North American sourced materials. Even the molds are made in the same facility. Being released next month. IG: weareonecomposites
  • 1 0
 @kennyken1015: Very true and well put.
  • 3 0
 @jrocksdh: STFU with your political BS!
  • 1 1
 @dtimms: politics is life-quoted from plato whom coined the term.
Its absolutely true that location of said biz affects price of said product.
  • 2 1
 @jrocksdh: if politics is your life, depressing life man!
Location effects price or type of government? You blamed the left for high prices cause of their taxes. Called people snowflakes. F@ck off man
  • 2 1
 somebody get him a kleenex
  • 1 0
 If you want carbon runs just go on light bicycle and get some built up, if you want some toss off some enves go on light bicycle get some built up and buy an enve sticker pack. If you want any other brand just go to light bicycle ad get some built up. Or just be a cheap cunt like myself and run alu becauae you are never going to win a world cup
  • 2 2
 CARBON IS NOT RECYCLABLE!!!
  • 2 0
 your a fool to think the raw ingredients of a product should dictate its cost. Do you have any idea how easy it is to produce an aluminum rim? Its simple aluminum bar stock pressed through an extrusion machine and tacked together at the seam. Its completely automated and takes seconds to manufacture an aluminum rim. Once bent it is garbage.
Carbon rims are simply f*cking better n every god damn way except that they cost more, welcome to life. They are hand made with great care and complexity, and often come with a lifetime f*cking warranty, something no aluminum rim has ever had. carbon rims are inherently durable and have been shown in popular videos online showing tests between aluminum and carbon rims from santa cruz. The aluminum was barely comparable in strength and durability. I have personally broken every spoke except one on a carbon xc wheel, it is still as true as new.
Also never paid retail for carbon, its easy to find deals or buy used.
  • 27 7
 Do you guys ever get tired of whining? Every damn response is the same!!! If it cost too much you're going to say its shit and piss and moan about pink bike reviewing it. If someone can afford it, then they're a douchbag.. For the love of god, we get it. Now please STFU!!!
  • 34 8
 Stop whining.
  • 24 1
 Another day, another carbon wheelset review.
  • 3 1
 It's all carbon rims with different decals for now.
  • 5 9
flag aoneal (Apr 22, 2017 at 6:41) (Below Threshold)
 There must be a shit ton of dentists out there.
  • 7 4
 @aoneal: No there are just a ton of people who work hard for a living and don't rely on an allowance from their parents to buy shit.
  • 4 6
 @Dustfarter: Dentist spotted.
  • 3 1
 @chyu: I'd rather have a good dentist than good carbon rims
  • 11 0
 Dear rim manufacturers, nobody cares about the outside width of your rims so quit naming the rims using that dimension. All we care about is the inside width! This naming convention is about as useful as a tire manufacturer using the inside width of the to size it.
  • 9 0
 Ok, so they found a way to make low profile carbon rims. But what's the benefit of that?
  • 6 0
 Longer heavier spokes? I prefer deeper myself, (that's what she said) Shorter, lighter spokes and a stiffer wheel.
  • 7 1
 Shallow rim= more compliance/comfort.
  • 1 0
 @stumpymidget: explain please.
  • 4 0
 @tigerteeuwen: deep section rims like enve and others are massively stiff, it is one complaint people have about carbon rims other than the price of course. The lower profile rim just has a little more give in it, though probably still not as compliant as a good alloy rim. I prefer alloy myself, having sampled both.
  • 3 0
 @stumpymidget: Cool,thanks for answering. Genuinely didn't know there was a difference in feel with section size. (Always thought it was more of an aero thing)
  • 3 1
 @tigerteeuwen: The bending stiffness of a beam is very sensitive to changes in beam depth. For a solid beam the equation for second moment of area is bt^3/12, where b is the breadth and t is the thickness. So making a rim profile twice as deep will make it 8x stiffer.
  • 7 1
 The reason there are so many people selling carbon wheelsets is because the profit margin is high. Hopefully all the competition will continue to drive the price down.

LB, Nextie, and Colorado Cyclist are currently among the bottom of the price range. Do they ride as well as their more expensive counterparts? There's been a few head to head carbon wheel comparisons, but I'd love to see more blind timed testing to see if people really do go faster on carbon rims.
  • 1 0
 AND there is huge demand. PBers should like articles like this- more competition means there will be more affordable options. Carbon rims are not about 'going faster' necessarily. They tend to be stiffer and provide subtle differences in feel over aluminum. But let's be honest, people like to buy them because they look cool.
  • 9 0
 Copied Bouwmeester Composites. Nice concept though.
  • 5 0
 I love my carbon wheels. I ride a Enduro 29 and they have completely transformed the ride. My old wheels were pretty much rubber bands. To me, the grand or so I spent upgrading is well worth it, especially since it feels like I'm riding a whole new bike. To get that feeling otherwise I'd be shelling out 4-5k for an actual new bike. I haven't run into any issues with them either, which is surprising since I'm a beater and still have my winter beer belly weighing me down. To each their own though!
  • 2 0
 Totally agree, I ride an e29 also. Was sick of the standard wheels needing truing after every ride. Now on a set of LB 38mm Carbon with DH layup. Same weight as the old wheels, but a year in I haven't had to touch a spoke key. I'm heavy and am hard on parts and in all my years of riding I've never had as strong a wheelset as my 'Cheap Chinese Carbon'. They feel amazing too, the inherent stiffness probably is beneficial to a big guy on a 29er - may well be too stiff in 26/27.5 for lighter riders.
  • 4 0
 Waaaah waaaah waaahhhh carbon sucks. Too expensive. They fall to pieces easily, honestly, they totally do . . . . You all sound like a bunch of bloody clowns. Don't like them, don't buy them. Simple. But your constant making up of 'facts' about them is just starting to look sad now.
  • 7 0
 looks quite similar to the 3000$ Bernard Kerr signature wheelset
  • 6 0
 There we go .. most anticipated article in recent PB time
  • 1 0
 i straight up have been waiting to hear about these Atomik AM wheels since hearing word of their development last summer.
  • 2 0
 Foam cores have been used in some carbon rims on road bikes for many years. Probably most notably with Mavic, Corima and Lightweight. Possibly 20 years even. Soul Kozak currently make hubs with a magnetic freewheel mechanism and Tune have experimented with it in the past as well.
  • 2 0
 yo can buuy Zipp wheels with magnetic ratchet right now in you LBS...
  • 18 0
 @b-wicked: *looks inside wallet*
lol no I can't
  • 1 0
 Kappius also makes hubs (road and mountain) with magnetic freehub.
  • 1 0
 @fabdemaere: as long as you got both of your kidneys there is a chance Big Grin don't give up !
  • 1 0
 Yep, absolute black also do hubs with very similar to DT ratchet and magnets, nothing new to see here
  • 2 0
 On the way out to a Friday morning ride in Pisgah, I mentioned to my brother-in-law if he had noticed how many new companies were making carbon wheels now. Must be a great mark-up he said. Well after our ride we stopped at the Hub for our favorite brew and to check our stats from the ride. Wow 10.3 miles, average speed 4.5 mph. My brother-in-law adroitly mentioned, just think, if we had carbon wheels our average speed might be 4.6 mph. I agreed.
  • 1 0
 Quick engagement hubs+good aluminum WHEELSET= perfection. And most likely under $6-800. These carbon wheelsets are sweet and looks great. But I just can't justify the price for a standard rider not looking to win a World Cup.
  • 2 0
 These wheels look awesome! Best graphic package of any reasonably priced carbon rim. The website shows an I9 hub (which would be a great deal at 1350), not a DT350 which makes it not that great. Thats misleading.
  • 3 3
 Cost to Weight to Durability just isn't there. Carbon wheels are great on the road and just aren't worth the time and money. If the goal is durability and stiffness you can get that out of a wide alloy wheel for much less. When carbon rims are $100 to replace it may be worth it but until then alloy is still superior.
  • 1 0
 Carbon rims are $100 dollars to replace when you have the right crash warranty. Although Atomik's policy is you pay $250 for a crash replacement rim.
  • 1 0
 I am after some new wheels any ideas on what is durable and light weight for about £500 I weigh about 12.5 stone and ride rough rocky tracks and always use Maxxis 2.35 High Roller ,would appreciate your comments
  • 1 0
 These carbon rims features are like dropper posts--nothing really new and the price is still the same. Same criticism applies: bring something completely new or at much lower price and people will buy it.
  • 1 1
 From the people who brought you 'Attack Of The Carbon Wheelset', "Return Of The Carbon Wheelset', "Revenge Of The Carbon Wheelset", "Attack Of The CArbon Wheelset's Brother', "Attack Of The Carbon Wheelset's Brother Part 2(3 and 4)",
"Visitation Of The Carbon Wheelset's Grandmother", and " The Cleaning Of Your House By The Carbon Wheelset's Favorite Cleaning Crew", we bring you 'Yet Another Carbon Wheelset With "New Technology"'
A Quinn Martin Production of an Aaron Spelling Joint
  • 2 1
 If I want to damp my ride and add a touch of compliance, I can lower the PSI in my tires and turn the little anodized knobs on the fork/shock for FREE.
  • 2 0
 another rim with "stuff" in the middle... noblwheels.ca/collections/27-5-tr45-wheelsets
  • 1 1
 Foamcore does nothing in this application except dampening a noisy carbon wheel and maybe cheapen manufacturing. If you were to link the crossection with a honeycomb mesh...ah nah...why bother. Alurims still better.
  • 1 0
 As long as they drill the holes in the rim its just another ordinary one...
  • 1 0
 Magnetic spring sounds cool. Tune has done the same engagement on their hubs for years.
  • 1 1
 What IloveRiding said, that sums up what I think of carbon wheels perfectly.
  • 3 2
 glad Im on 26" still, no need for any road bike carbon rims (29") crud
  • 1 4
 I'm getting sick of this hype over carbon wheels. They're not as good as they're made out to be! They're far more expensive than aluminium and quite frankly, they offer no advantage (actually a disadvantage) when it comes to downhill speed and very little difference uphill too (100-150g over a wheelset is nothing to write home about). They're too stiff, so ping around far more and compromise grip and therefore speed. I had a set of SRAM Roam 60s and folded the front wheel in half turning into a corner and the rear is cracked too. Now on a set of 32 spoke Stans Flow Mk3 and life is good again.
  • 1 0
 I have the 100th comment. FTW, send me a set. . .
  • 1 0
 Boost only?
  • 2 2
 Boost... Just another gimmick for the bike industry to suck you in and take more of your hard earned $$$.
Any average rider will never know the difference but will jump on the band wagon just to say they run it.
Let's all run for that coolaid.
  • 1 0
 @orcello: Technically we didn't really 'need' any advancement in mountain biking technology or geometry or anything. I presume you still ride an OG clunker of course as your only bike. Only then would your logic really make sense.
  • 1 0
 @mgolder: are you kidding! Didn't need technology. We ride real trails here in Canada. I presume you've never ridden a real trail in your life after that statement. My clunker bike is fantastic. Ride it on some of the best trails in the world. Right in my back yard. All I'm saying is. Bike standards should last more than 5 minutes.
  • 1 0
 @orcello: You seem really confused. Your tone suggests you are disagreeing with me but your words say otherwise. I think you have clearly not understood my post.

So is your clunker the only bike you own and ride? You seem against new technology in biking so it must be.

Also, quit spouting about your 'real' trails. Oooh you live in Canada, so what. There is good riding in most places around the world. Get over yourself.
  • 1 0
 @mgolder: sounds like I hit a nerve.... not boasting Bro just an opinion. Just responding to your comment.
Just gonna keep riding my out of date clunker. Have a great riding season in 2017.

Cheers
  • 1 0
 @orcello: Ah one of the standard defences of someone with no argument, pretend you have 'upset' the other person. Good one.

I notice you haven't actually answered a single question put to you though, which says all anyone needs to know. You moan about technology and changes, but happily use those advances all along.
  • 3 3
 Screw that carbon hype, Deemax ultimate all the way!!!!!!







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