Lightest 11-34 or 11-36 11S cassette with GRX

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LouisN
Posts: 3510
Joined: Mon Feb 19, 2007 3:44 am
Location: Canada

by LouisN

I'm looking to find a good place to save weight over the original Shimano 105 11-34 cassette.
But wouldn't sacrifice shifting quality.
Seems there is a "hole" in the market now. There used to be XTR titanium cassettes in 11-34 10S, but now in 11S Shimano tops at Ultegra :? ...?
Sram 11S, or third party monobloc cassettes any good ?

Louis :)

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mrlobber
Posts: 1928
Joined: Sat Oct 23, 2010 9:36 am
Location: Where the permanent autumn is

by mrlobber

SRAMs XG1190 goes only to 11-32, unfortunately.
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maurice1
Posts: 143
Joined: Mon Dec 19, 2022 12:51 pm
Location: Jura

by maurice1

I swapped my ultegra 11-34 for a 105 to pocket the 45€ difference, here's the weight difference I got on my scale:
Ultegra 11-34: 330g
105 11-34: 359g

As far as I know Miche or Garbaruk don't make 11-34s, that leaves aliexpress sellers, quite a few claim weight between 230 and 240 grams but as far as I know that weight doesn't include the lockring (my measurements did) and they have some aluminum teeth which might wear out faster. As for shifting they all have shifting ramps and some people report excellent shifts, some have issues. YMMV depending on the chain.

SRAM indeed do not make a 11-34 as far as I know but they DO make a 11-36 but it's pretty expensive and heavy at 370g.

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tarmackev
Posts: 899
Joined: Sat Jan 15, 2011 9:59 pm

by tarmackev

I went with a light Ali Express one. Its been very good in a few gravel races.

ooo
Posts: 1590
Joined: Sat May 21, 2016 12:59 pm

by ooo

Miche makes 11s 11-34T and 12-34T with cog sequence from shimano 12s 11-34T:
11-12-13-15-17-19-21-24-27-30-34T = CALP1BS113458 = EAN 8057013347044
12-13-14-15-17-19-21-24-27-30-34T = CALP1BS123459 = EAN 8057013347051

34T is separate cog, 12-34T is heavy 392.2:

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markdjr
Posts: 250
Joined: Sun Sep 17, 2017 10:21 pm

by markdjr

XTR 11-40 is pretty light and should work with your derailleur even if not officially compatible.

s3si1u
Posts: 73
Joined: Wed Sep 21, 2022 8:12 am

by s3si1u

Not sure what the weight savings would be, if at all, but I can confirm the SRAM Force 1170 11-36 cassette works pretty great with GRX 810. Set it up on my cousin's bike without any issues, shifting is flawless.

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