The Oversized Pulley Wheel System for SRAM Red and Force AXS features a 15-tooth upper and 19-tooth lower pulley wheel setting, for maximum efficiency. The handbuilt OSPW System has two spring tension settings, that allows customised setup based on riding conditions.  

This OSPW System is also compatible with the 2020 11 speed SRAM Red eTap derailleur featuring a clutch. 

In the box:

Complete OSPW System for SRAM Red/Force AXS

CeramicSpeed Oil for Pulley Wheel Bearings, 15 ml. dropper bottle

Custom tool for removal of stock cage and securing of OSPW System. 

 

The overall power savings of the OSPW System for Shimano Dura Ace 9200 and Ultegra 8100 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 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.