Exclusive: Take Your 11-36 Cassette to the Next Level with OneUp Components’ 42t Sprocket

OneUp-Components-42T-Sprocket-green-Specialized-2013-Stumpjumper-FSR-Comp-EVO 29- cassette- Looking for the wide range performance of XX1 but can’t afford the price tag? At OneUp components they believe in working less and riding more which is why they came up with a solution to that very problem. As their debut product, OneUp is essentially giving your cassette an extra life with their 42t replacement sprocket. Designed to fit on your standard 10 speed mountain bike cassette, the sprocket offers the super low range of the 42t cassette without having to make huge changes to your drivetrain. Intrigued? Shift past for more! OneUp-Components-42T-Sprocket-green-front Thanks to the advent of high quality non-drop chainrings like Wolf Tooth Components, drivetrain experimentation is at an all time high (at least for me). While it is possible to go 1×10 with a standard Shimano or SRAM 11×36 cassette, there are definitely times that a wider range would be welcomed – which is why the XX1 cassette offers 10-42t. The OneUp components sprocket won’t get you that 10t, but it will bump up the low range to a tractor pulling 42t. Built to use a standard 9/10 freehub body, the 7075-T6 sprocket includes 12 shift ramps CNC machined into the surface that are optimized for an 11-36 cassette. Once adapted, the net weight increase for the cassette is 51g and offers a 17% range improvement in the gearing. OneUp-Components-42T-Sprocket-Instruction-Sheet-01_grande Just how do you go about adding a 42t sprocket to your cassette? Well, essentially you are removing the 17t cog and replacing it with the 42t. There is an included spacer that must be positioned differently if you’re running SRAM or Shimano, but the directions make it plenty clear. In the case of a Shimano M771 11-36 cassette, this takes the gearing from 11-13-15-17-19-21-24-28-32-36 to 11-13-15-19-21-24-28-32-36-42. Will you miss that  17t? It depends on the bike, your gearing, cadence, etc. – but we hope to find out soon. OneUp’s 42t is compatible with most 10 speed medium or long cage derailleurs, as long as they offer enough chainwrap capacity for your selected gearing (largest rear sprocket – smallest rear sprocket) + (largest front chainring – smallest front chain ring). It should go without saying, but depending on your chain length you may need to add a link due to the bigger gear. As for the cassette, OneUp is compatible with the folloing 10 speed models: Shimano   

  • XT (CS-M771-10 11-36)
  • XTR (M980 11-36)


  • X5 (PG-1030 11-36)
  • X7 (PG-1050 11-36)
  • X9 (PG-1070 11-36)

OneUp points out that the Shimano Deore, SLX and SRAM 1080, 1090, and 1099 cassettes are currently not compatible with the 42t adapter sprocket. Compared to something like the General Lee 25-40T cassette adapter, the OneUp sprocket fits both SRAM and Shimano cassettes with the same part, and retains more of the original steel cassette gearing. Like the XX1 cassette, only the largest, 42t cog is aluminum which helps to maintain drivetrain durability. Also, due to the nature of the OneUp sprocket’s design since the lowest cogs rarely are worn out, you can replace the rest of the cassette while keeping the OneUp for future use. OneUp-Components-42T-Sprocket-green-Specialized-2013-Stumpjumper-FSR-Comp-EVO 29- drievetrain-

The OneUp 42t sprocket is available in black or green with the MSRP set at $100. The first sprockets are shipping out in January and will ship anywhere in the world for free. Check out OneUp on the web for additional product info and to place your order.


drkrvr - 11/28/13 - 3:46am

Overpriced. General Lee, Recon, brand-whatever…, as well.
Full (10 cogs) casette – 10sp / 11-40t / 84.- EUR / 115.- USD
This is overpriced already as well, but this is a full casette, not just 1 cog:

pt81 - 11/28/13 - 3:47am

Take off the 15 and 17 cogs and put in a16 ,the jump up a down will be less noticeable.

John K. - 11/28/13 - 4:03am

You must be joking! If you remove the 17t cog, the gap between cogs isn’t proportional. With a 11-13-15-19-21-24-28-32-36-42 cassette de gaps will be 2-2-4-2-3-4-4-4-6. You have 4 teeth gap between 15-19, and 2 teeth between 19-21.

If you want a good proportional cassette, you have to remove 17t and 19t cog, and replace it with 18t a 42t cog. The new gearing will be: 11-13-15-18-21-24-28-32-36-42 with proporcional gaps: 2-2-3-3-3-4-4-4-6.

I think Shimano and Sram could make a 11-42 10v. cassette with 11-13-15-18-21-24-28-32-36-42 gearing.

Antipodean G - 11/28/13 - 4:08am

Very cool. I just found a Christmas present for myself!

Drakche - 11/28/13 - 4:26am

Awesome idea, but 100$ for a single cog.
whose manufacturing costs probably 15$…
This is taking it too far. I really dislike the trend of manufacturers trying to cash in on some stupid hype.

Kristina - 11/28/13 - 4:30am

Nice color. But the gearing is terrible. The jump from 15t to 19t cog is more than 26%! We sell our rebuilt 10speed cassette 11-40t with gearing 11-13-15-17-20-23-26-30-34-40t. Complete cassette for less than 100Eur.

Johan - 11/28/13 - 5:14am

Could one remove a different gear , as 17 is my most used gear.

oratioh - 11/28/13 - 5:18am

Agreed this is an awesome product, and more cost effective than the General Lee cassette. But $100 for a simple CNC’ed single cog is BS, in fact cog for cog this is more than the infamous XX1 cassette. Come on guys

Lawman - 11/28/13 - 5:18am

You can get single shimano xt 16t cogs as well to tighten the mid-range ratios a little bit, so you end up with 11-13-16-19-21-24-28-32-36-42. Would work on either the xt or xtr cassettes and they cost like a £5

uzurpator - 11/28/13 - 5:19am

Incorrectly machined inner spline of that cog. It will be incompatible with ~99% of hubs out there.

Rich - 11/28/13 - 5:42am

This is genius. And Lawman’s 16t idea sprocket makes it even better.

Yuki - 11/28/13 - 6:08am

That looks nice, but General Lee’s wide cassette is $140. It’s too expencive for only 1 cog.

momo - 11/28/13 - 6:24am

Well, I could not justify the price of General Lee. And now… 100$ for a cog!? Please Shimano, bring us a native 11-42 cassette so we can get rid of this stuff…

Eddie - 11/28/13 - 7:48am

Pretty much the same product made out of stainless has been available for months for $35 on ebay. A lesson in the power of marketing I’d say.

57-180 - 11/28/13 - 8:03am

So old it’s new again. Brought me right back to the 90’s and the Ritchey 2×9 drivetrain. Solid idea. I’m always amazed at how many things show back up that Ritchey dabbled with in the past!

Matt - 11/28/13 - 8:09am

I would strongly encourage anyone complaining about the price to design, produce, package, and market something similar for less than $100. You clearly know better than these guys how to do all of this so very much cheaper, and I’m sure your expertise will be very much appreciated by those looking to save a few dollars.

mike - 11/28/13 - 8:16am

yes somebody went unto business for profit. how shocking. bunch of whiners if you cant afford it then maybe you should consider a different hobby but last i checked there are plenty of affordable parts. and eddie provide this link you speak of because i cannot find it.

kibndman - 11/28/13 - 8:54am

$100. sure beats $1300. for an XX-1 groupo (sorry SRAM, I love you)

Heff27ml - 11/28/13 - 9:03am

Do you have a link for that Eddie?

Sevo - 11/28/13 - 9:12am

Price is fair. Few things to consider here:
-Small Company=Small Batched.
-In CNC, lower quantities=higher prices
-Compare that a Wolftooth 44t chainring is $84
-Compare: Rotor ss Q Ring is $140 for
-Note: Cutting the splines isn’t as easy/cheap as you think
-Nor is cutting in shift ramps

Also let’s not forget that currently a 10-42 cassette will cost you $340, and you need to then get a special free hub body (if your hub has that option, if not you’ll need new wheels, if it does that’s typically $90+). Oh, and that is only available in 11 speed. Which means you’ll also need a new chain, shifter, and rear der minimum. Plus a Woolftooth chaining or similar starting at $40-$50.

$100 for a ring that lows me to keep everything I have already except my 17t cog?? Sold. Sign me up. But I want mine in gold to remind me it saved me money.

Kark - 11/28/13 - 9:37am

There’s some good comments here. Nice!

The stainless unit via ebay looks like it would shift like garbage tho. No ramps or pins to help with shifting and the tooth profile looks quite different than any I’ve seen. It’s not comparable to the involute patterns of non-shifting ansi sprockets and it’s not comparable to the more open pattern for cassetts and chainrings so where did it come from?

Thanks Kristina and John for good points r/e the gear spacing and alternate solutions. The Werke site unfortunately is a bitch to decipher tho.

I like the idea of the oneup solution but I think would prefer to go to a 40t vs 42t

In general tho adding a few teeth to the back would allow me to go larger with a single chainring for more top end which could be nice.

OneUp Components - 11/28/13 - 9:42am

Thanks for looking!

The launch special is $85 including free international shipping by e-mailing discount1@oneupcomponents.com

Regarding the 17T removal. We think this is a great compromise to achieve the extra range of a 42T and the added durability/shift performance of keeping the steel 28,32,36.

Tim - 11/28/13 - 10:01am

These guys are smart- they’ve priced the product high enough to make themselves money (people do business in order to make money), and low enough to save you hundreds of dollars compared to getting the “real” SRAM XX1 drivertrain.
The steel one on eBay is a cheap and probably effective solution, but not as light as this one.

24s - 11/28/13 - 10:06am

Will do the same job than my actual 42 rings, but nicer ! I took of the 15 and 17 cogs and replaced it with à 16.

i ordered one Oneup ! I hope you will ship them early january !



JW - 11/28/13 - 10:20am


I’m in doubt. My bike is a XTR & XT mix. I won’t go to Sram, but I feel 1×10 (or 1×11) is the way to go for me. The Lee adapters didn’t convince me because in my experience experimental drivetrain combinations never shift as good as the original parts working together + less durability, …

100$ is a lot of money knowing you get added range but loose some good shifting performance. And who knows what Shimano will bring out in 2014. Better save the 100$ untill it is clear how Shimano will respond to XX1 ??

MG - 11/28/13 - 10:29am

Good job…. I will definitely be trying one of these out.

Kurt - 11/28/13 - 10:39am

I’m running a similar setup a friend made me as a hobby piece. Simply removing the 17T cog will give you a weird drop. I took off both my 17 and 15t cogs and replaced it with a 16t cog from an old 9 speed cassette I took off. Instead of going 19-15-13 now, I go 19-16-13.

FastWayne - 11/28/13 - 10:44am

What you mommies didn’t tuck you in last night? All the hate. if you don’t like it don’t buy it.

NCMTB - 11/28/13 - 11:00am

You can also keep the 17, and just remove the 11 adding a 13T first position sprocket:


John - 11/28/13 - 11:01am

Very good job :-)

Like this:


This is manufactured in Spain and you can change the chainring 42.

Alex - 11/28/13 - 11:03am

I’m sorry can we just lose the 11t cog and put in the 42? I can’t remember the last time I used mine.
Ultimately aren’t we free to choose which cog we give up?

Ajax - 11/28/13 - 11:09am


Not for the cassette.

For one single cog.

Rich - 11/28/13 - 11:27am

@alex, you could lose the 11t but you would need to find a 12t cog from a 12-something cassette. You need one with the serated surface for the cassette lock ring.

John - 11/28/13 - 11:28am


Is very expensive!!!!

Ray - 11/28/13 - 11:39am

I like the idea. I just don’t like not being able to use a SRAM PG1080 cassette or higher.

Scott - 11/28/13 - 11:51am

42T !!, I remember when my lowest gear was a 32-28, because we all removed our 22T rings.

RickyB - 11/28/13 - 12:01pm

I’ve been running this 41 tooth (from eBay) all summer, works pretty well, and with SRAM XO drivetrain. I ditched the 11 tooth instead of the 17, that’s my least used gear. Up front I have a Race Face 32 tooth (pre narrow-wide) and it’s my “poor man XX1”, minus 1.


Brendan - 11/28/13 - 12:27pm

I don’t think most current 10 speed rear derailleurs can take a 42 tooth gear.

Matt - 11/28/13 - 1:15pm

Cost aside it’s an option to go 1X10 on bigger rides and options are what we all like, right? Good job OneUp!

Ian - 11/28/13 - 1:48pm

I think Shimano is crazy not to engineer a response to XX1, but… in Shimano land, front derailleurs are king and they only see 1X systems as a solution for DH bikes. I hope I’m wrong but I don’t think we’ll ever see a real trail worthy 1X system from Shimano, more than likely we’ll have internally geared XTRi2 but I bet that’s another 8 years away at least and will only be available to the ultra rich. All of these aftermarket solutions are cool, but on paper, they don’t seem super stable to me. If a rear derailleur wasn’t engineered to ever think about a 42t cog… I understand chain capacity so spare me on those dynamics.

however, for me, $85 would be worth it to ditch the FD and maintain a reasonable gear range – I hate to admit it, but seeing someone like RaceFace produce a more affordable option is probably the next step. They seem to own that 1X market now with that NW chain ring. That silly thing is the best $50 I’ve ever spent on a bike and I would be hard pressed to give the little companies any of my hard earned money now. These smaller companies have to realize what they’re up against, it’s a lot like opening a bike shop in a saturated market only crazier. I wish them well, if it gets good reviews when it’s on the trails for a bit, I will buy one.

James - 11/28/13 - 2:53pm

This looks like an incredibly bad idea without a carrier to spread the load out. The top 3 gears on any modern cassette are on a common carrier to spread out the load so that the gear doesn’t dig into, score, and eventually jam/slip on the cassette body. Even with a steel cassette body I wouldn’t use this, as the load will be incredible with a 42t ring. There are already much better 1×10 stop-gap products avail.

Local Dutchman - 11/28/13 - 3:00pm

I wonder what an aluminium freehub body looks like after a steep climb on the 42T. How wide is the base?

OneUp Components - 11/28/13 - 3:19pm

Thanks for all comments. Please checkout our compatibility and installation website info for answers to a lot for these questions.

Specifically regarding the freehub load comments we have close to 4mm of spline engagement. This is very similar to the engagement between XX1 and an XD driver.

Simon - 11/28/13 - 3:50pm

I actually think this is a pretty elegant solution. I’d expect it to last longer than a couple of cassettes so the cost of ownership over time will be lower than buying full cassettes

Thumper McDonut - 11/28/13 - 7:34pm

I love all the armchair engineers claiming to know how much these cost to make.

Matt - 11/28/13 - 8:01pm

To those saying drop the 11T and use a 13T smallest cog:
42/13 = 3.23 (323% range)
This is a smaller range than your existing 36/11 (327%).
It would be easier and cheaper to just fit a smaller chainring…

The point of this product is to give you a 42/11 = 381% gear range

Jason - 11/28/13 - 11:14pm

I love it, great idea…for a 1×10 set up this is a game changer. As for the cost!?!? 100 Bucks, (85 with the promo), that’s not bad, a lot of people I know spend 85 dollars on tires….that’s a bit ludicrous don’t ya think? So go out to your bike and add up how much you have in Rubber on your hoops, then compare it to a sedan tire, or even a motorcycle tire, then we cant talk expensive.

But first I’m commenting directly to OneUp, as I have a question. Will you guys be offering in the kit a replacement for the 11T instead of the 17T, or will you supply the info needed and part numbers to do that swap instead of the 17, IMO this would be great for marketing, as it allows the customer to chose what jumps he or she would like to make, with a result in making your product even more appealing.

My reasoning is this;
Yes I see on paper that you will have less “Range” doing it this way. However, I’ve yet to ride my bikes on paper, but I hear it’s super fun. I unfortunately ride my bikes on dirt, up hills, in the mud, over rocks, and downed trees and all that mountain biking type stuff. So with that said, I rarely ever use my 11T ring, save for traveling or storing the bike to take some tension off the derailleur spring. So I would certainly be game to replace a cog I don’t use, for one that I certainly will with a 1×10 set up, (your 42T).

Also I gave some thought to the speculation of the ring digging into the free hub body. Correct me if I am wrong, which I probably am, but while in a granny gear, ie the 42T isn’t it quite easier to pedal, so essentially you are putting less torgue into the drive train at this taller gearing? Thus lessening the stress on the drive train. Whereas if you are in smaller gear it takes more physical force to move the pedals thus that force is transfered through the drive? Further thought brought me to an idea that this 42T will not be used that often, so then even lowering the risk for free hub injury if you will. Now that’s just arm chair hearkening back to High School Physics there, nothing concrete, but just a thought.

To OneUp, thanks in advance, I hope you can respond to my question.
To interweb engineers and number cruncher’s….keep riding, it’ll make ya happier.

OneUp Components - 11/29/13 - 12:16am


Always glad to respond.

First regarding the 17T. We chose the 17T for a few reasons. First, it exists and is removable on all compatible cassettes. Secondly, removing it results in the lowest resultant percentage jump between the adjacent gears. Some cassettes, like the 1030 for instance, have other free gears that could be removed instead, to tune it differently.

Regarding the 11T. We do not plan on creating this simply because we are looking to add range.

Regarding the freehub load comments. We have close to 4mm of spline engagement. This is very similar to the engagement between XX1 and an XD driver.

Thanks for taking the time to comment.

James - 11/29/13 - 12:28am

2×11? Surely too many gears!!

24s - 11/29/13 - 1:55am

I don’t agree the solution of taking off the 17. Better way is to get single shimano xt 16t cogs as well to tighten the mid-range ratios a little bit, so you end up with 11-13-16-19-21-24-28-32-36-42. No stupid gap between the lowest cogs.

RickT - 11/29/13 - 3:05am

@Alex: If you never use your 11T and you find your 36T not low enough, maybe just get a smaller chainring! You will find both your 11 and 36 cogs more useful, as well as improving clearance and weight a tiny smidge :)

Mindless - 11/29/13 - 4:00am

I like my 17t. General Lee is a better solution.

giulio mancini - 11/29/13 - 5:45am

what about the gap of over 26% from 15 to 19t??? that’s the question why men are hardly studing things like the GL!!!

M.E - 11/29/13 - 6:18am

Certainly some nice “creative”marketing on their website: “The OneUp Components 42T Sprocket gives you 90% of the benefit of 1×11 systems at 10% of the cost”

Sounds good, but your current 11-36 cassette will give you “80% of the benefit of 1×11 systems at 0% of the cost”. Dude that’s like infinity % better value!

What? - 11/29/13 - 7:26am

Most hubs cannot handle the torque from a 42T, that is why the XX1 uses a different freehub body.

hellbelly - 11/29/13 - 8:10am

I think this looks awesome. A simple and smart design. To the posters b*tching about the cost, buy something else, build your own or better yet STFU and go ride.

drkrvr - 11/29/13 - 9:21am

Definitely not a full professional solution. Seems to me kinda DIY. Pics/web are nice. Color/design nice as well. Any references? Reviews? Have to admit and thnx 1up that there is a next “alternative” to XX. It is just a peace of aluminium 7075 anyway, not a Francium (25g in the all Universe :). Is it?

My proved solution for 400m-1500m / 1300ft-5000ft mountains since 2011 (snow, winter, summer) 26er bike setup:
chainring – front Surly steel 33t / no chain guide, 2 drops in a city :) / der. – XT SGS 2008 / casette – Deore 12-36 / shifter – 1pc XT 2008 / chain – 1×9 Campagnolo C9 / other – stronger legs… So I built one, I did it .)
Total cost cca. 70.- Eur/ 95.- USD (chain C9 + cass. + Surly). Components are HQ off-civilisation purposed. Weight – not the lightest, but it is built to last (steel), not paper… Full HT 26er, year 1999, weight with Magura HS33, RS SID 2008, CB Eggbeater and tyres cca. 550g per 1pc is cca. 11,3kg / size L / Aluminium 6xxx grade frame. Ok?

Definitely do not like to change gears up/down all the time, will wait for complex solution (Shimano?) Prefer 1×8… WTF 1(2)x11(12, 13, 14, x)? Why? Chain wide? Lifespan? Common sense, sry? Better to choose a car or e-bike :)

Interesting alternatives:

and 40t cog for 72.- Eur from UA:

isaac - 11/29/13 - 9:33am

Lets be honest here, if you are pairing this up with an X5 cassette you aren’t buying an XX1 or XO1 parts group any time soon. I like the big green anodized cog, I might get one for my single speed.

Catch22 - 11/29/13 - 10:18am

@What? The different freehub body on XX1 is smaller to accommodate the 10t cog that won’t fit on a standard freehub body. As a whole, the XX1 freehub bodies are a downgrade from a traditional freehub due to smaller diameter and the resulting smaller bearings.

Alex - 11/29/13 - 1:35pm

$100 is good deal – I just bought a 29er Norco Revolver and it happened to be a leftover from 2012 so I got it for a good price – great frame, but slightly heavy parts (X5/X7) – I am going to end up upgrading it as I go. I’d love to go X01 or XX1, but when I add up what I’d have to do all at once to go that route (rear wheel with XD driver, 11s RD and shifter, crank, chain), I can’t afford that just from a cashflow perspective – it’s too much all at once. But I can afford to do it bit by bit – keep my wheel, add the $100 cog, take off the FD and shifter, get a Race Face Wide-Narrow ring, I am functionally (if not weight-wise) most of the way to where I want to be. Somewhere down the trail, after I wear out the rear wheel or kill the RD, I can perhaps afford to do 11s with XD. In the meantime, this is a great solution!

dirtyd - 11/29/13 - 4:34pm

the jump from 36 to 42 is huge, i think most people would prefer a 40t.
I would actually buy one if there was a 40t option

drkrvr - 11/29/13 - 5:04pm

This is the same idea I have discussed with a small custom-bike producer in CZ. Superb idea to use a simple adapter for a common freehub and to combine it with any steel/alu/ti/carbon/… 104 BCD (front) chainring. After it wears out it is enough to replace only the chainring itself. Eco solution as well. Perfect! If only 1 chainring wears out there is no need to replace the crank arms as well (trendy to save weight by compacting different parts to all-in-one-piece).

Tip1: Could be good to make a FSA compatible or different BCD adapters as well. Thnx.
Tip2: Any producer/lab – please try to figure out 3D printing tech and heavy-duty cog materials…

Similarly like Charge started with frame parts

MissedThePoint - 11/29/13 - 8:58pm

I was waiting for a solution like XX1 that’s cheaper, but this is not the solution that will end that wait.

Jeff - 11/29/13 - 11:45pm

Can the stock hub on a bike handle the TQ from having a 41T? The cassette bodies had to get stronger to handle the 36t on most 29ers

OneUp Components - 11/30/13 - 4:36pm

We don’t recommend running a front chainring smaller than 26T. This will give the equivalent torque at the freehub body of a 22T granny on a traditional 11-36 cassette.

Koko - 11/30/13 - 5:09pm

Yuki where you found the general lee @ $ 140. Because on ebay is from $197.95 to $ 242.45, would like to buy one for $ 140.

Chris - 12/01/13 - 9:57am

What makes an SLX cassette not compatible with the OneUp cog? If it was compatible you could take the 17t and 19t out and replace it with an 18t, and this would give you very even splits between the cogs throughout the cassette. Unfortunately for this application the XT and XTR the 19t cog is attached to the carrier and as a result you can’t remove it. While this might not be the solution for everyone, it’s certainly a viable option, and the more options that are out there the better.

Chris - 12/01/13 - 12:19pm

What makes an SLX cassette not compatible with the OneUp cog? If it was compatialbe you could take the 17t and 19t out and replace it with an 18t, and this would give you very even splits between the cogs throughout the cassette. With the XT and XTR the 19t cog is attached to a carrier and as a result you can’t remove it. While this might not be the solution for everyone, it’s certainly a viable option, and the more options that are out there the better.

MBR - 12/01/13 - 4:33pm

Or… for only $66 USD you could buy a 20 or 21 T titanium granny chainring direct from Actiontec.

MBR - 12/01/13 - 4:35pm

Why not just buy either a 20 or 21 T titanium chainring direct from Actiontec for $66?

Lawman - 12/01/13 - 8:20pm

Some people really have missed the point of this! Too many arm chair engineers and dismissing things before they’ve even tried it. I for one think this kind of product is a great idea and can’t wait to try one out.

Fo - 12/01/13 - 10:52pm

Not to bash anyone’s product, but why now just go with 2X10? Why all the complications?

nsxtc - 12/01/13 - 11:36pm

I have the 1080 and really would like to try this out, but I understand why this 42 is not compatible w/ SRAM 1080/1090/etc… because all but the last three cogs are attached to the spider. But then why not just simply remove the 11 cog and use this to lock the 13 cog…http://www.ebay.com/itm/Oversized-Lockring-For-Bicycle-Cassettes-For-12-Teeth-/251353994373?pt=US_Cassettes_Freewheels_Cogs&hash=item3a85dd9485

Jeff - 12/02/13 - 5:55am

Shimano or Sram XT or XO level 39 tooth cassette would cure most ill’s on this issue, and still allow people to use their current derailleur without adding any links to their chain and the torque fear would be eliminated as well. Soooo, get on it!!

dirtyd - 12/02/13 - 10:23am

So is there any plan for a 40t version?

Ian Andrew - 12/02/13 - 12:24pm

Can i order your Sproket in Red rather than the Black or Green option(don’t mind paying extra for a special order) and also can you explain how my Sram X0 Rear Mech will clear the 42T Sproket,has Sram say the Max Teeth my Mech will clear is a Max 36T Cassette.


Jason - 12/03/13 - 9:30am

I second Ian’s Red Request!!!

bongwater - 12/03/13 - 7:40pm


drkrvr - 12/04/13 - 7:14am


3×9, 3×10 – too heavy, to much gears, 9sp chain with better lifespan
2×9, 2×10 – good compromise for everyone and every terrain
1×9, 1×10 – for “lazy” bikers with stronger legs, weightweenies, lower range purposes


SRAM 1×11 – superb idea for professionals (price, lifespan?)
PROTOTYPES HOPE 9-36, ….still prototype and other protos
XYZ Co. adapters – buy a cog (set of cogs) and try it out – for DIYers, experimentators
SHIMANO – please do not sleep
FULL CASSETTE – Werk.cz (best deal IMHO for the price), Recon, KCNC, … (price…)

Forgot something?

Travis - 12/04/13 - 9:21pm

Why wont this work with a 9 speed 11-36 cassette?

dislivello - 12/08/13 - 2:21am

Problem will axle hub or pawl /rachet ring…w 42 need to have troule axle and hub resistence 40 kg m torque.. shimano hub are not available…i thinks

viffer - 12/10/13 - 4:15am

drkrvr – you forgot that 1×9, 1×10 also includes fat bikes running single chain ring setup due to maxed out tyre width

JUAN PEDRO RIVERO - 04/25/14 - 6:12pm

I could indicate the price with shipping to Spain Sprocket 42 tooth and payment? thanks

Edwin Santiago - 05/20/14 - 11:12pm

Its a great cog. Im running a 3-9speed. Change the 11-32 to a 12-36 9speed remove the 12t cog and It works perfect. Cassette tooth count is 14-16-18-21-24-28-32-36-42t ( 2-2-2-3-3-4-4-6 ) this setup a low me to climb much better for a heavy rider.

xw - 06/10/14 - 7:27pm

OneUp Components or anybody that knows,

I have a x0 type 2 rear derailleur (I don’t know if it’s a medium or long cage length). I have x0 2×10 39/26 up front and 11-36 cassette in the back. I know long cage length rear derailleur will work, but will a x0 type 2 medium cage length rear derailleur work as well?

Thanks in advance

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