Lightest chainring for XX1?

Discuss light weight issues concerning mountain bikes & parts.

Moderator: Moderator Team

seismic
Posts: 187
Joined: Sun Feb 03, 2008 4:40 pm
Location: Singapore

by seismic

Dear All,

I am in the process of changing to XX1 and in that connection I am looking for what would be the lightest chainring around to fit the XX1 system. I contacted FibreLyte, but they do not have a chainring fitting with the XX1 cranks. So, If I want something light, do any of you know what my best alternative is?

Thank you

seismic

sstefanov
Posts: 93
Joined: Fri Jul 25, 2008 7:18 pm
Location: Sofia, Bulgaria

by sstefanov

My take will be Absolute black direct mount chainring (spiderless) or something similar. This way you are getting a lighter chainring and no spider, which should make the whole setup lighter.

Look here: http://absoluteblack.cc/sram-spiderless.html

Stefan

by Weenie


vfb
Posts: 58
Joined: Thu Oct 07, 2010 7:35 pm
Location: Denmark

by vfb

Race Face, mine came in at 37g 32 104mm bcd.

If it is for direct mount i think absolute black is the lightest, i have just ordered one for my training bike :-)
I ride for fun

User avatar
dwaharvey
Posts: 493
Joined: Thu Oct 26, 2006 8:54 pm
Location: USA

by dwaharvey

If you're trying to save weight there, why not go for something like the new Race Face Next SL crank with the direct mount spiderless ring? I'd trust their ring over the Absolute black one since its a narrow-wide design, and the setup will be over 100g lighter than the XX1 crank.

limba
Posts: 956
Joined: Tue Dec 16, 2003 4:24 am

by limba

Yup. Just get the whole Race Face crankset if you can afford it.

seismic
Posts: 187
Joined: Sun Feb 03, 2008 4:40 pm
Location: Singapore

by seismic

Hmmm, I was thinking Clavicula M3. Will RF beat it on weight looking at a BB30 setup?

User avatar
si1ver
Shop Owner
Posts: 309
Joined: Tue Jan 10, 2006 3:53 am
Contact:

by si1ver

The best way to save weight at crank will be to go with Hollowgram SiSL2 For BB30 .

seismic
Posts: 187
Joined: Sun Feb 03, 2008 4:40 pm
Location: Singapore

by seismic

si1ver wrote:The best way to save weight at crank will be to go with Hollowgram SiSL2 For BB30 .


Can that beat the Clavicula M3?

User avatar
dwaharvey
Posts: 493
Joined: Thu Oct 26, 2006 8:54 pm
Location: USA

by dwaharvey

My Hollowgram SiSL2 (172.5) with spider, xx1 chainring (32) and axle weighed 459g. Spider, chainring, and bolts contributed 80g, spider alone was 27g, ring+bolts was 53g.

R2 bike claim 393g for Clavicula M3 (not sure which length) with spider but no ring so that's about 13g lighter than the Cannondale.

RaceFace with a direct mount 32h ring is 462g according to a poster on MTBR who bought one. (Ring weighed 68g)

Another light BB30 option is the Specialized Sworks which is 363g for the arms in 175mm and are pretty cheap compared to Hollowgram and M3.

There's not a lot to choose weight-wise between these, so I'd pick based on function, durability, look, warranty, cost. The RF and Clavicula have the nice feature of mechanical adjustment for the BB rather than relying on a wave-washer setup like Cannondale & Specialized. RF and Sworks only come in 170 or 175 though, so if you want 172.5... you have M3 or SiSL2.

ridonkulus
Posts: 22
Joined: Fri Nov 22, 2013 5:12 pm

by ridonkulus

The Absolute Black looks nice but I've heard the chain retention isn't as good as the other ones. With saying that I would go with the Race Face for the extra couple grams and better chain retention.


User avatar
cerro
Posts: 1374
Joined: Fri May 12, 2006 2:11 pm
Location: Stockholm, Sweden
Contact:

by cerro

dwaharvey: Bottom bracket for Hollowgram at 48g is a lot lighter than the >80g bottom bracket for Clavicula M3. So think bottom bracket have to be included to compared weights. But what spindle do you have for your Hollowgram SiSl2?

I'm aiming for <478g for my Hollowgram SL with 34t Carbon-ti chainring and including bottom bracket. :)
/jonas l
http://cerrol.wordpress.com (my cyclingblog)

jooo
Posts: 1504
Joined: Wed Feb 02, 2011 3:48 am

by jooo

I guess in dwaharvey's case the BB is basically the same weight - threaded 30mm cups for both THM and SiSL.

Even if you have the heaviest BB option, a Clavicula DP with an Extralite ring and bolts is still pretty much the lightest combo AFAIK.

Ypsylon
Posts: 1403
Joined: Wed May 24, 2006 6:25 pm

by Ypsylon

I'm guessing, but I'm pretty sure that THM M3 arms with a Fibre Lyte spider-less chainring will be hard to beat.
"Nothing compares to the simple pleasures of a bike ride," said John F. Kennedy, a man who had the pleasure of Marilyn Monroe.

jooo
Posts: 1504
Joined: Wed Feb 02, 2011 3:48 am

by jooo

Maybe, maybe not? It's also somewhat irrelevant to the discussion without the XX1 tooth profile I guess.

And look at the weight difference, pretty hard to make up for that with a spiderless ring:
Image
Image

by Weenie


Post Reply
  • Similar Topics
    Replies
    Views
    Last post