The CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low-friction bearings and unique overall design.

• The CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low-friction bearings and unique overall design.
• Features a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimization of the rear derailleur
• Robust cage is custom molded from carbon fiber for durability and light weight
• The 4 tension spring settings allow for optimal drivetrain setup based on riding conditions
• OSPW X is specifically designed for road, gravel, and cross riding