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 When compared to other pulley

When compared to other pulley materials

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Angular Contact Bearing Bottom Bracket for T47 Framesets and 30mm Cranksets (for older specification spindles under 90mm wide)

guaranteeing accurate alignment when installed into your T47 threaded frame

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 When compared to other pulleyBKCJ 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