CeramicSpeed OSPW Pulley Wheel System Shimano 9100/9150 8000 SS/8050 SS - Alloy Pulley Carbon Cage Red Direct Mount/BCD-Threaded Mount It also works great as

It also works great as a cover on top of klisters

Model Directline XD15 Compatibility Shimano 11sp GRX Upper/Lower 11/11t Color Graphite Pulley Size 11/13T

Can be applied to chain cables shifters and derailleurs

Zipper closes towards the front keeping things neat and tidy when running a lighting system

model eeSilk/Silk+ description rebuild and press kit

CeramicSpeed OSPW Pulley Wheel System Shimano 9100/9150 8000 SS/8050 SS - Alloy Pulley Carbon Cage Red Direct Mount/BCD-Threaded Mount It also works great asThe CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low friction bearings and unique overall design. Largest Cog 32 Fits Model Dura Ace R9150 Fits Brand Shimano Drivetrain Speeds 11 Defined Color Red keyword search OSPWS