Cer
With our OSPW RS for Shimano Road groupsets, we're lifting 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.
FEATURES
Reinforced Modern Cage Design
Updates include angular, injection-molded carbon-fiber reinforced PA cage for increased rigidity and edgy aesthetics—designed to blend with today's bikes and groupsets
Premium Bearings
Grade‑3 Silicon Nitride ceramic ball bearings—about 400% smoother, 128% harder, and 58% lighter than standard steel—delivering ultra-low friction and high durability
Alpha Disc Pulley Wheels w/ ADR Protection
Features two-part aluminium disc pulleys with composite narrow‑wide tooth profiles—enhancing durability, quiet operation, and chain engagement.
Includes CeramicSpeed’s ADR (Active Debris Remover) system—a patent‑pending debris shield that covers the bearing and dynamically removes dirt
Adjustable Spring Tension
Four adjustable tension settings allow fine-tuning of chain engagement and tension for smoother shifting and optimized chain handling
IN THE BOX
Complete OSPW RS ALPHA for Shimano 9250/8150 system
SPECIFICATIONS
Discipline Road & Tri
Net Weight 102g
Gross Weight 302g
Pulley Material Aluminum
Derailleur Brand Shimano
Compatible Models Dura Ace RD-9250 & Ultegra RD-8150
