SRAM Powermeter 2x/1x Spider for RED and Force AXS Cranks, 107 BCD, Black, D1
AXS enabled for easy monitoring and firmware upgrades. Power-upgrade compatible with the following RED and Force eTap AXS cranksets: RED 1x: 36T-46T, Force 1x: 36T-46T, Force 2x: 33/46, 35/48. Chainring BCD 107.