Designed and developed entirely by CeramicSpeed, the Oversized Pulley Wheel System for Shimano RX800/805 provides the ultimate optimization of your bicycle's drivetrain.
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.
About CeramicSpeed's coating:
CeramicSpeed’s coated products offer the ultimate gains in performance and longevity. Our proprietary coating features several attributes that improve the longevity of CeramicSpeed Bearings. The increased hardness of the races, combined with the smoothness of the CeramicSpeed Balls results in virtually no wear on the bearing.
The coating is a metallic layer, which is 75% harder than the hardened steel races. The coating is applied in a very thin and even layer of 3 microns (0,003 mm) on the entire surface of the bearing race. Both the inside and the outside are treated to achieve optimal results.