The Oversized Pulley Wheel System from CeramicSpeed will improve the efficiency of your drivetrain and give you that extra advantage over your rivals, not to mention it looks sweet! The OSPW for Shimano 9100/9150 and 8000 SS/8050 SS feutures a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimisation of the rear derailleur. The upper and lower oversized aluminium pulley wheels come fitted with either standard or coated CeramicSpeed Bearings.

IMPORTANT! 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.

In The Box

• A complete 13-tooth/19-tooth OSPW System
• CeramicSpeed Bearing Oil in 15ml dropper bottle

Technical Data

The overall power savings of the OSPW System for Shimano 9100/9150 /8000 reach 30%-60%, or more in some cases, over a stock setup.

The oversized pulley wheels have 3-5 times longer lifetime than the commonly used standard pulleys on the market.

The Shimano 9100/9150 and 8000 SS/8050 SS OSPW system is compatible up to a 32 tooth cassette for both Dura Ace & Ultegra derailluers.

Pulley Wheels: CeramicSpeed 13-tooth upper and 19-tooth lower

Pulley Wheel Material: Aluminium

Cage Marterial: Carbon reinforced PA

Bearing Options: CeramicSpeed Standard or Coated

Bearing Options: CeramicSpeed Standard or Coated 

Special notes:

Custom tool included for removal of stock cage and securing of OSPW. The factory clutch mechanism will remain intact and in stick form. There is no damage or modification to the clutch for the installation of the OSPW System. 

>> How to install your OSPW System <<