Sram: THE NEXT EVOLUTION OF X-SYNC TECHNOLOGY The radical new look and feel of the X-SYNC™ 2 chainring is a direct result of SRAM drivetrain engineers studying the performance and wear characteristics of thousands of X-SYNC™ chainrings. The aggressive tooth design provides better chain retention for a smoother, more efficient pedal feel. With a focus on long wear-life, the X-SYNC™ 2 design reduces friction and the accumulation of mud, grit and grime. THINGS TO REMEMBER Compatible with 11- and 12-speed drivetrains. Designed specifically for Eagle chains and drivetrains. X-SYNC™ 2 design increases chain retention and wear life, and reduces friction and noise. SPECIFICATIONS Chainring Size 30, 32, 34, 36, 38 Bolt Circle Diameter (BCD) 104 BCD, 94 BCD Speeds 12 Compat - Yaw n/a, No Material (Chainring) Aluminum, Steel Color (Chainring) Black