The 13-tooth upper and 19-tooth lower aluminium pulley wheels come fitted with either standard or coated CeramicSpeed Bearings.
This OSPW X System has a custom molded carbon fiber cage for lightweight and durability. The 4 tension spring settings allow for optimal drivetrain setup based on riding conditions.
OSPW X is specifically designed for both road, gravel and cross riding and is platform proven at races like Paris Roubaix, Strada Bianche and CX World Cups.
In The Box
- A complete 13/19-tooth OSPW System
- CeramicSpeed Bearing Oil in 15ml dropper bottle
This OSPW system reduces friction 35-40% over stock pulley configuration.
The oversized pulley wheels have 3-5 longer lifetime than the commonly used standard pulleys on the market.
This product offers a 4 years warranty on the non-coated version and 6 years on the coated version.