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Praxis Works Girder Carbon M30 Gen2 Crank

Praxis Works Girder Carbon M30 Gen2 Crank


Trail riders who expect Top-Level-Performance, Finish and fit will not be disappointed.

With revised carbon shape and dimensions, the second generation Praxis Works Girder Carbon aims to be the new Trailmaster. Lightweight carbon arms, a rigid M30 axle and an updated DM chainring mount make the Girder Gen2 a High-End-Upgrade for any bike and rider.


  • Lightweight, stiff carbon crank arms
  • 3-bolt direct mount update
  • M30 axle requires a Praxis M30 bottom bracket
  • 10/11/12-speed compatible
  • Q-Factor: 178mm


3-bolt Direct Mount Update

Updated mount for 3-bolt DM chainrings allows spacing to match established chainline offsets. This allows you to use other 3-bolt DM chainrings of any brand.


Wave™ Tech
The Wave™ tooth profile alternates from left to right, directing lateral forces into each link to keep the chain active. This design creates more open spaces to dissipate debris and abrasion, maintaining chain retention in adverse conditions.


Note - Bottom bracket
The Girder Gen2 M30 crank requires a Praxis Works M30 bottom bracket as the axle profile of the bottom bracket tapers from 30mm to 28mm. Suitable M30 bottom brackets from Praxis Works allow the use of the crank in almost every frame.

Additional weight: 488g +/- | 170mm set without chainring | manufacturer specification

Scope of delivery: left and right crank arm with axle.

Fact Sheet of Praxis Works Girder Carbon M30 Gen2 Crank

Product Name: Praxis Works Girder Carbon M30 Gen2 Crank
Manufacturer: Praxis Works
Item Code: PWO531778
activity: Cycling
material: Carbon
usage bikesport: MTB
crank arm length: 165, 170, 175
bottom bracket axle profile: M30 - 28/30mm Hollow Shaft
direct mount standard: SRAM 3-Bolt
chainring mount: 1-speed, Direct Mount
Q-factor: 178mm
Model year: 2023
Collection: Full year
Color: Black
weight: 488g
manufacturer item code: G2-GC165 | G2-GC170 | G2-GC175
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