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Product Review
- 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
- Rings: single