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Are all DUB cranks compatible?

Bicycles Asked on February 24, 2021

I have a dub crankset with arm length 175 (https://www.sram.com/en/truvativ/models/fc-styl-7k-b1)

I want to change the crank arm length to 167.5

There’s no 167.5 crank arm for SRAM MTB line (I think SX/NX/GX/XX1/X01 are MTBs?)

I found Red and Force 167.5 arms which are also DUB (I think these Red and Force are for road?)

So can I mix the Red or Force crank arm (https://www.amazon.com/SRAM-Force-AXS-Crank-Assembly/dp/B07WCRY3BY) with my existing MTB crankset ?

One Answer

Road cranks are not going to work on your MTB.

The crank arms include the crank axle - one of the arms is permanently attached to the axle. The axle length is important. Road bikes use narrower bottom bracket shells than MTBs and hence have shorter axles.

Correct answer by Argenti Apparatus on February 24, 2021

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