BKCJ-0340 - 11 tooth, XD15 Ceramic Hybrid Bearing, Machined Delrin Derailleur Pulleys for 11 speed Shimano Dura Ace (9000 Series) and Ultegra (8000 Series) Derailleurs (5mm bolt hole) - Red 428420 This bearing has most commonly

This bearing has most commonly been used as a suspension pivot bearing

Radial Suspension Bearing - 12mm x 21/23mm x 5mm -

This complete bottom bracket features 440C stainless steel balls and races to provide long life and superior corrosion resistance in applications and environments that may be less than ideal and features a custom 22mm ID extended race bearing designed specifically for the non-drive side on GXP cranksets

Replacement bearings are sold individually for service purposes

BKCJ-0340 - 11 tooth, XD15 Ceramic Hybrid Bearing, Machined Delrin Derailleur Pulleys for 11 speed Shimano Dura Ace (9000 Series) and Ultegra (8000 Series) Derailleurs (5mm bolt hole) - Red 428420 This bearing has most commonlyBKCJ 0340 11 tooth, XD15 Ceramic Hybrid Bearing, Machined Delrin Derailleur Pulleys for 11 speed Shimano Dura Ace (9000 Series) and Ultegra (8000 Series) Derailleurs (5mm bolt hole) The ultimate upgrade pulley. Guaranteed to last forever against corrosion Precision machined Delrin Derailleur pulleys featuring XD15 Ceramic Hybrid, radial bearings for enhanced shifting performance and longevity. Designed and manufactured for performance, these pulleys