These 12-tooth pulleys provide exceptional shift performance. The design delivers precise engagement of the chain, both on and off the pulley wheels. Coated products make less friction than standard finish, and are ultra-resistant to corrosion from degreaser, water, or mud. Compatible with: SRAM Red AXS, SRAM Force AXS, SRAM Rival AXSThis product includes: two 12-tooth pulley wheels, alloy spacer kit, CeramicSpeed Bearing Oil, (15ml. bottle), sticker sheet.