MTB 40 or 42 teeth chaingring

Discuss light weight issues concerning mountain bikes & parts.

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ODC
Posts: 373
Joined: Mon Aug 14, 2017 9:40 am

by ODC

Have bought myself a BMC teamelite with DI2 XT M8000.
With the bike came a crankset with 36/26 chainring.
This is to small for me because this MTB is for the rainy days on the road and some beach races.
In the first couple of rides i almost rode the whole time on the 10th or 11 teeth.
Now I know that there is a 38/28 option with Shimano but I would prefer a 40 or 42 teeth chainring.
Not necessary that it is double a single is also good for me.
I think it's obvious that I don't need a TRIPLE!

Someone nows a solution?

I heard from my dealer that rotor can provide something like CX narrow wide chainring on a MTB spider. Don't know if that's a good solution

Marin
Posts: 4035
Joined: Wed Jan 22, 2014 11:48 am
Location: Vienna Austria

by Marin

Specialtes TA will have something for you.

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maddog 2
Posts: 366
Joined: Wed Feb 25, 2009 7:58 pm
Location: Lancaster, UK

by maddog 2

biggest I've seen that is M8000 single/NW is 36t

You may be better off changing the crank to a 4 or 5-bolt 110mm BCD, and then using a ring designed for CXing, like Rotor, or Superstar, or Hope, or Blackspire.

wjs
Posts: 78
Joined: Mon Feb 12, 2007 3:37 pm
Location: Rotterdam, The Netherlands

by wjs

You could try these, run up to 40t

https://www.superstarcomponents.com/en/ ... ecific.htm



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ooo
Posts: 1591
Joined: Sat May 21, 2016 12:59 pm

by ooo

single 1x11 96bcd
Fouriers 40T, 42T, 44T, 46T

double 2x10
FC-M785 40-28
'

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joshpeck
Posts: 25
Joined: Thu Jan 11, 2018 11:02 pm

by joshpeck

I run a 42t on my cx bike, and imagine if you're not riding too much in the mountains then you should be fine with that.

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