XD-15 12/14T SRAM Eagle

• Precision machined Delrin Derailleur pulleys featuring XD-15 Ceramic-Hybrid, radial bearings for enhanced shifting performance and longevity. Designed and manufactured for performance, these pulleys feature CN (tight clearance) bearings in the upper pulley to maximize shifting accuracy and C4 (loose clearance) bearings in the lower pulley to allow for chain-line movement. • XD-15 Ceramic-Hybrid bearings combine corrosion-proof, cryogenically treated nitrogen steel races with Silicon Nitride Grade 3 ceramic balls in a proprietary process that results in the ultimate high performance bearing setup. • The 12 tooth upper pulley/14 tooth lower pulley set 5mm bolt-holes is designed as an upgrade for SRAM 12 speed cable-actuated Eagle derailleurs (includes XD-15 cable idler pulley.)