The OSPW X System for Shimano XT/XTR 1x12 reduces friction by 35-40% compared to stock pulley configurations. The lightweight, custom-molded carbon fiber cage ensures durability. This design allows the use of the same length chain as stock pulleys.

The 14-tooth upper and 18-tooth lower pulley profiles ensure stable chain retention while reducing drag.

The OSPW X System is developed, designed, and handbuilt in Denmark—and proven globally.

Only compatible with 1X specific derailleurs.

- Pulley Wheels: CeramicSpeed 14-tooth upper and 18-tooth lower
- Pulley Wheel Material: aluminum
- Cage Material: Carbon-reinforced PA
- Bearing Options: CeramicSpeed Standard or Coated
- CeramicSpeed Grease/oil: CeramicSpeed Pulley Oil
- Compatibility: Shimano XTR M9100-SGS, Shimano XTR M9100-GS, Shimano XT M8100-SGS and SLX M-7100 derailleurs
- Cassette Compatibility: Up to a 10-51 tooth range
- Spring Tension Settings: 2 spring tension settings
- Speed: 12-speed
- Discipline: Off-Road

In the box:
- Complete OSPW System for Shimano XT/XTR 1x12
- CeramicSpeed Pulley Oil, 15 ml
- Sticker Sheet