CHAINRING SPIDER SRAM POWERMETER 107bcd 4B FORCE RED DUB AXS BK

Compatible with Force and Red AXS DUB crank arms only - Not compatible with older 11s Force or Red GXP or BB30 cranksets

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

AXS enabled for easy monitoring and firmware upgrades

Bluetooth Low Energy and ANT+ compatible

Power readings are accurate within +/-1.5% and aren’t affected by climate conditions during a ride

Power balance measures left and right legs separately

Uses a common CR2032 battery that last for 200 riding hours and changes without tools

Must be used the 8-Bolt proprietary cranksets