XX1 Boost and non-boost Power m Spider must be combined with a XX1 Eagle DUB 8-hole crankset and a 104BCD X-Sync 2 chainring
Magic Zero - Automatic calibration while driving. It is not necessary to press back the pedal or manually calibrate via the main unit
Bolt Circle Diameter: 104mm
Bolts: [chainring] 4, [power meter spider] 8
BB Type: SRAM DUB
0.35 kilograms