Praxis Girder Carbon MTN Cranks Crank Only - No Chainring

$499⁰⁰

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Length

165mm 170mm

Product variants

Availability

Delivery and Shipping

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GIRDER & GIRDER "HD" | Next-Generation Innovation. The Gen2 Girder Carbon MTN Cranks deliver a complete redesign with refined carbon geometry, enhanced spacing, and a Heavy Duty variant for demanding riders. Engineered for trail performance, these cranks feature sculpted carbon arms, a solid M30 spindle, and an updated direct mount interface. Built for riders who demand premium quality, precision engineering, and flawless compatibility—a serious upgrade for any mountain bike setup.

SPECIFICATIONS

Girder : For Trail / XC | 165/170/175 | Q-178
Girder HD : For Enduro | 165/170 | Q-178
HD shares same shape, but with a Heavy Duty carbon layup
Sold as crank arms only | M30 Bottom Bracket & DM Ring sold separately
New Gen2 shape for better clearance/fit on wider variety of MTN frames
Updated 3-bolt DM ring interface to align spacing with established chain-line offsets. Riders can use any brand 3-Bolt DM ring. See Pic - On the backside of the G2 GIRDER drive side arm you’ll see a sticker showing offset options to get your desired chain line.
8mm alloy main crank bolt for Install/Self-Extract | 50Nm Torque
Ref Weight: Girder 498g +/- | Girder HD : 545g +/- (170mm set–no ring)
INSTRUCTION MANUAL

COMPATIBILITY

BB - Praxis M30 MTN cranks use our M30 family of bottom brackets. This crank can be installed with M30 : BSA, BB90/92, T47 E.B, BB30/PF30.

DM1X CHAINRING COMPATIBILITY | Universal Flexibility. The Gen2 Girder arms are engineered to match industry-standard DM ring spacing, letting you pair any brand, style, or type of 3-bolt DM chainring while maintaining perfect chain line alignment. Whether you prefer oval rings or specific colors, you have complete freedom. A guide decal on the drive-side arm shows offset options to dial in your exact chain line—no guesswork required.

POWER – Aftermarket options for this MTN crank :