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 61902 LLU/LLB A5 - ABEC-5

61902 LLU/LLB A5 - ABEC-5 Radial Bearing (CN clearance) - 15mm x 28mm x 7mm -

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

Replacement bearings are sold individually for service purposes

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

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 61902 LLU/LLB A5 - ABEC-5BKCJ 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