CeramicSpeed Pulley Wheels for Shimano XT/XTR Rear Derailleurs

• Compatible with Shimano XT M-8100 series and Shimano XTR M-9100 series; works with the stock range of cassette sizes, up to a 51-tooth cassette (not included)
• Narrow-wide design delivers precise engagement of the chain, both onto and off of the pulley wheels
• Increased pulley size, compared to stock, reduces chain friction
• Features precision-machined aluminum pulleys with standard CeramicSpeed bearings (premium grade 3 silicon nitride ceramic balls and hardened races)
• Includes two 14-tooth pulley wheels, CeramicSpeed oil for pulley wheel bearings, a 15 ml dropper bottle, a sticker sheet and CeramicSpeed All Round Grease

Imported.