Sram XX1 Eagle 1x12S Boost DUB SL crankset

True competitors are always looking for a performance advantage — a relentless pursuit of equipment that is lighter, stiffer, stronger and more durable. To create the best drivetrain possible, Sram has re-examined and re-engineered their crankset design. The all-new XX1 Eagle™ Carbon Tuned™ crankset is the lightest, stiffest and strongest to date. Sram DUB™ technology enhances this by simplifying the relationship of the spindle to the bottom bracket, and redefining the measure of durability.

Features

DUB™ technology delivers the lightest, stiffest, strongest crankset available.
Chainring material: aluminum.
Chainring size: 34T.
All-new Sram Carbon Tuned™ crank technology provides extreme stiffness and light weight.
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.
Boost compatible.
Axle compatibility: DUB BSA MTB 100, DUB PF MTB 121, DUB BSA73,DUB PF89.5,DUB PF92,DUB PF30 MTB73,DUB BB30 MTB73, DUB:BSA73, PF89.5, PF92, PF30 MTB73, BB30 MTB73, BSA MTB68SP.
Direct mount.
Real weight: 427 g (175 mm/34T).

Technologies

DUB
The relationship between bottom bracket spindle and bearing is the core of DUB™ technology. It’s where stiffness meets durability. Sram took it a step beyond conventional thinking and made everything simpler — and better integrating the relationship between chainring, crank, spindle and bottom bracket. It’s this clear system approach that equals better drivetrain performance.

Carbon Tuned™
Strength and stiffness where you need it, lightweight like you want it. Proprietary Sram carbon lay-up design increases thickness and stiffness at critical stress areas. Tapered, terraced, carbon architecture ensures the greatest weight savings without compromising strength.

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.

Boost
BOOST is the standard wheel and drivetrain specification that opens the opportunity for improved frame geometry with shorter chain stays, wider and stiffer suspension pivots, wider range of chainring options, as well as more clearance for bigger tires and wider, stiffer wheels.

Eagle™
Eagle™ technology represents the newest 1x drivetrain technology. Eagle™ is a lighter, simpler, more durable, and easier to use drivetrain. Eagle™ features all-new 1x components, engineered for even greater durability and performance while maintaining a significant weight advantage over other drivetrain solutions. Eagle™ technology also provides an expanded gear range of 500%, which is equal to 2x11 drivetrains.