The XX1 Eagle crankset features a special hollow internal architecture combined with SRAM&';s Carbon Tuned technology to provide extreme stiffness and light weight. An X-SYNC 2 chainring offers significantly quieter performance with better mud clearing and extraordinary durability. As a part of the SRAM Eagle ecosystem this crankset was developed for a superior 1x drivetrain experience. Defined Color Black Rings 34 Spindle Interface Type SRAM DUB Chainring BCD Direct Mount SRAM Color Black Chainline/Hub Compatibility 141/148 Boost Hubs Drivetrain Speeds 10 Number of Chainrings Chain Retaining Single Crank Intended Use Mountain BB Included No Pedal Spindle 9/16" Crank Length (mm) 170 Crank Length 170Mm