True competitors are always looking for a performance advantage-a relentless pursuit of equipment that is lighter, stiffer and stronger.

To create the best drivetrain possible, SRAM started with a completely re-engineered crankset design. The XX1 Eagle crankset is one of the lightest, stiffest and strongest on the market. A special hollow internal architecture, combined with SRAM's proprietary Carbon Tuned lay-up, allows to build a lightweight and ultra-energy-efficient crankset perfectly suited for the high-wattage output and smooth style of cross country riding and racing. Teamed up with an Eagle direct mount chainring, and as an integral part of the Eagle drivetrain. The DUB (Durable Unified Bottom Bracket) crank spindle, which can be universally used in all common bottom bracket shells, also increases rigidity. The bearing play will be fine tuned with an adjuster ring. 


DUB (Durable Unified Bottom Bracket) - DUB technology features a better-engineered bottom bracket and a new spindle design. Together, these allow for a more uniform approach to bottom bracket fitment, better sealing against contamination and forward and backward compatibility. Now everyone can benefit from a new measure of durability. 

Carbon TunedStrong like bull, light like carbon. Every Carbon Tuned part is designed with a distinct style of riding in mind. By selectively layering woven carbon fiber at high-stress points and using unidirectional fiber throughout, SRAM creates components that yield a remarkable level of strength and durability-while remaining lightweight and responsive.

X-Sync 2 - X-Sync 2 Eagle is the next evolution of SRAM X-Sync technology. The aggressive teeth design provides better chain retention for a smoother, more efficient pedal feel. With a focus on long wear-life, the X-Sync Eagle design reduces friction and the accumulation of mud, grit and grime. 


Crank-arm design optimized for cross-country and trail applications

SRAM Carbon Tuned crank technology provides extreme stiffness and light weight

Oversized Dub spindle to work across every bottom bracket standard

All-new chainring technology is designed specifically for Eagle chains and drivetrains

The X-Sync 2 chainring provides significantly quieter performance, with better mud clearing and extraordinary durability

Material: Crank Arms: Carbon Hollow Core

Chainring: Aluminium

Weight: approx. 422g (incl. 32 teeth chainring, 175mm crankarm length)

(manufacturer information)

Crank length: 170 or 175mm

Colour: Black, Black with Golden Lettering

Chainwheel, Number of teeth: 34

Fitting for derailleur: SRAM 1x11/12-speed

Axle profile: DUB hollow spindle (28.99mm)

BB shell width: DUB BSA 73mm / DUB PF 89.5mm / DUB PF 92mm / DUB PF30 / DUB BB30

Direct Mount Standard: SRAM

Type of chain: SRAM 11-speed / Eagle 12-speed

Chainline: 52mm (Boost)

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