Real-world speed, performance and efficiency: Since its introduction in 2015, the CeramicSpeed Oversized Pulley Wheel (OSPW) System has firmly established itself as an iconic product in modern cycling. Celebrated for its efficiency and speed-boosting technologies and distinct look, the OSPW System has acted as a visual manifestation of our desire to push drivetrain performance through innovation and engineering savvy. With the introduction of our new OSPW RS for Shimano and SRAM Road groupsets, CeramicSpeed has lifted the OSPW into the future with a distinctly modern and angular design. The updated design brings balance and refinement to the OSPW System allowing it to blend seamlessly into the contemporary design trends of bikes and groupsets - making up the whole of which the OSPW System is part. With an added level of customization (multiple Logo and Pulley Wheel options) combined with new innovative tech features the OSPW RS meets consumer demands for personal expression and premium ride experience. The OSPW RS is a statement for where we've been, and where we're going - always at the forefront.