Praxis Girder Carbon MTN Cranks Crank Only - No Chainring
FREE SHIPPING ON THIS ITEM*
Praxis Girder Carbon MTN Cranks Crank Only - No Chainring - 170mm is backordered and will ship as soon as it is back in stock.
Delivery and Shipping
Delivery and Shipping
Free Shipping on orders over $120 (excludes some large/oversized items) AUS only.
$20 Flat rate Express Shipping option available for non-bulky items. Usually delivered the next business day (Metro Areas) AUS only.
Same Day Dispatch on orders before 2pm (excludes supplier stock).
Delivery times will vary from 2-5 business days for metro areas and 7-14 business days for rural and remote areas.
Please see our full Shipping Policy here
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
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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 :
- Power2Max – 3-Bolt MTN NG or NGECO
- SRM – 3-Bolt MTN Spider Power Meter
- GARMIN – “Rally XC200” MTN PowerPedals
TECHNOLOGY
- Carbon Fiber arms
- Forged M30 Aluminum Spindle
- "HD" Carbon Fiber Version with reinforced carbon design.
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