SRAM RED/Force AXS Power Meter Spider - 107 BCD 8-Bolt Crank Interface 1x/2x BLK D1 81mm it’s also compatible with 29er

it’s also compatible with 29er wheels and tires

See Tech link below for compatibility info

}Whether youre going for style

Double or Triple Triple Drivetrain Speeds 6 Drivetrain Speeds 7 Drivetrain Speeds 8 Crank-FD Type Mountain Triple Derailleur Capacity 18 Front Derailleur Clamp 31

SRAM RED/Force AXS Power Meter Spider - 107 BCD 8-Bolt Crank Interface 1x/2x BLK D1 81mm it’s also compatible with 29erSRAM RED Force AXS Power Meter Spider 107 BCD 8 Bolt Crank Interface 1x 2x Black D1. The SRAM AXS Power Meter Spider can be used to upgrade your SRAM AXS crankset to a power meter. 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 Bluetooth Low Energy and ANT+ compatible Power readings are accurate within + 1. 5%