The future of the OSPW system, in one angular, no-compromise design

With the OSPW RS for Shimano Road groupsets, CeramicSpeed lifts the OSPW system into the future: a distinctly modern, angular design that blends seamlessly into today's bike and groupset aesthetics — without losing its identity. Multiple logo and pulley wheel options, paired with genuinely new tech, turn the OSPW RS into a statement piece for riders who want performance and personal expression in equal measure.

Patented ADR technology: sealed against debris
Patented ADR technology pairs a new dust cover — anchored in a groove in the pulley wheel — with a bladed groove structure that actively extracts debris while the pulley spins. The bearing stays fully enclosed and protected, refined through CeramicSpeed's R&D lab and real-world field testing with professional off-road teams.

ALPHA Disc: built for the mud
Available with the ultra-durable ALPHA Disc pulley wheel, proven during the CycloCross World Cups. Two-piece construction: a narrow-wide composite tooth profile for extended wear and quieter running, plus a solid aluminium disc that stops debris jamming between the spokes and adds stiffness.

Reinforced cage, same CeramicSpeed precision
The update isn't just visual: the cage itself has been reinforced for greater strength and durability, without compromising the shifting precision CeramicSpeed is known for.

Built for Dura-Ace RD-9250 and Ultegra RD-8150 setups — browse the full Rear Derailleur (OSPW) range at Cicli Corsa.