AXS enabled for easy personalization Elegant and streamlined form for more rear-tire clearance Classic SRAM Yaw trimless cage technology with an optimized cage profile for new SRAM RED front chainring combinations Compatible with existing eTap batteries BATTERY NOT INCLUDED - BATTERY PART #530147 - SOLD SEPARATELY 12sp Braze on 1 to 1 BLK eTap AXSUPC/EAN/GTIN: 710845823084