BKCJ-0452 - Directline 11 tooth, XD15 Ceramic Hybrid Bearing, Machined Delrin Derailleur Pulleys for 12-Speed Shimano Dura-Ace Derailleurs (RD-R9250; 5mm bolt hole) sale Maxhit Bottom Bracket bearings are

Maxhit Bottom Bracket bearings are designed to thread directly into your bicycles bottom bracket shell

that we offer an limited lifetime warranty against wear and corrosion

Moly Disulphide lubricated lower oil seals move quicker

When compared to other pulley materials

BKCJ-0452 - Directline 11 tooth, XD15 Ceramic Hybrid Bearing, Machined Delrin Derailleur Pulleys for 12-Speed Shimano Dura-Ace Derailleurs (RD-R9250; 5mm bolt hole) sale Maxhit Bottom Bracket bearings areBKCJ 0452 11 tooth, XD15 Ceramic Hybrid Bearing, Machined Delrin Derailleur Pulleys for 12 Speed Shimano Dura Ace Derailleurs (RD R9250; 5mm bolt hole) This pulley wheel set fits the following derailleurs: Shimano Dura Ace RD R9250 The following Shimano derailleurs are NOT COMPATIBLE: Shimano Ultegra RD R8250 Shimano 105 Di2 RD R7150 Shimano 105 RD R7100 The ultimate upgrade pulley. Guaranteed to last forever against corrosion Precision machined