The CeramicSpeed Oversized Pulley Wheels System has been proven to be the fastest pulley system in the world, providing energy savings starting from 2.4 watts over standard Shimano systems.
Featuring a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimization of the rear derailleur. The upper and lower oversized aluminum pulley wheels come fitted with either standard or coated CeramicSpeed Bearings.
Please note: The OSPW System for 9100/9150 and 8000 SS/8050 SS is NOT compatible with Ultegra 8000-GS or 8050-GS (medium cage) derailleurs, nor with the clutch equipped Ultegra RD RX800 & RX805.
The Shimano 9100/8000 OSPW system is compatible with up to a 32 tooth cassette for both Dura-Ace & Ultegra derailleurs
In The Box:
- A complete 13-tooth/19-tooth OSPW System
- CeramicSpeed Bearing Oil in 15ml dropper bottle