The Mountain Bike Crank Length Discussion

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sspomer
Posts
6090
Joined
6/26/2009
Location
Boise, ID US
6/22/2025 5:32pm
How many options are even out there for cranks under 165?Hope make them in normal MTB or 83mm.New SRAM cranks from the mechanical transmission group sets...

How many options are even out there for cranks under 165?

Hope make them in normal MTB or 83mm.

New SRAM cranks from the mechanical transmission group sets are available is 160 and 155, but not in dh width

1
6/23/2025 2:21am
How many options are even out there for cranks under 165?Hope make them in normal MTB or 83mm.New SRAM cranks from the mechanical transmission group sets...

How many options are even out there for cranks under 165?

Hope make them in normal MTB or 83mm.

New SRAM cranks from the mechanical transmission group sets are available is 160 and 155, but not in dh width

sspomer wrote:

Cool, I've never even heard of them. No NZ distribution but I could always just buy internationally. 

Dub axle and 3 bolt chainring fitting is nice for compatibility.

1
boozed
Posts
659
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6/11/2019
Location
AU
6/23/2025 2:57am
boozed wrote:
I have a question for the gallery:I have a bunch of Shimano stuff that I'd like to be able to keep while experimenting with crank arm...

I have a question for the gallery:

I have a bunch of Shimano stuff that I'd like to be able to keep while experimenting with crank arm length.  Are there any third party cranksets with multiple length options that also support Shimano direct mount chainrings, and aren't significantly more expensive?

Shimano's new XT and XTR cranks are available down to 160 mm which could be what I'm looking for, even though that's only 5 mm shorter than the preceding model.

I was sure that I'd read the new Deore cranks also have a 160 mm option, but now I can't find any information about them.  Were they mentioned in any of the press kits?

1
mckpat03
Posts
18
Joined
7/14/2021
Location
Rothrock, PA US
6/23/2025 5:20am

White Industries revealed last week, I think, that they're working on expanding their cranksets down to 155mm. Previously they had 165-180. 

1
6/23/2025 11:16pm

Just incase anyone was interested, the samox alloy dh cranks are a few months away. 

I really don't know why you'd go for carbon ones here, 2.5x the price, alloy ones are going to deal with rock strikes way better and with the current trend of hanging weight off your BB why not just buy heavier cranks?

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