Ceramicspeed OSPW RS Alpha For Shimano 7150 Black TEAM

A New Era of Design. A New Standard of Performance.

The CeramicSpeed OSPW RS for Shimano 105 7150 elevates the Oversized Pulley Wheel System into the next generation with a bold, angular, and contemporary design philosophy. Built to seamlessly complement today’s modern bike aesthetics, the RS System introduces a refined silhouette that blends perfectly with the clean lines of Shimano’s 12-speed 105 Di2 platform.

Beyond the visual evolution, the OSPW RS delivers a new level of customization with multiple logo styles and pulley wheel options — allowing every rider to match performance with personal expression. This system represents both where CeramicSpeed has been, and where we are going: always innovating, always leading, and always pushing the limits of drivetrain efficiency.

Innovative Technologies

Active Debris Remover (ADR)

The next frontier in bearing protection.
ADR is a patent-pending system combining a fully enclosed dust cover with a dynamic groove structure that actively extracts debris as the pulley rotates.
The result:

- Exceptional bearing protection

- Longer service life

- Consistent ultra-low friction performance

ADR was developed through a continuous loop of R&D, lab testing, and real-world riding with elite off-road teams — engineered to perform in the harshest environments.

ALPHA Disc Pulley Wheels

Originally introduced on the OSPW X for Eagle Transmission, the ALPHA Disc technology arrives on the OSPW RS for Shimano with a two-piece performance-focused construction:

- Composite narrow-wide tooth profile

       - Reduces noise, increases chain control, and extends wear life

- Solid aluminum disc

- Prevents debris intrusion

- Adds stiffness and structural integrity

- Enhances mud and grit clearance

Born from years of testing in Cyclocross World Cups and perfected during the 2022 season, ALPHA Disc delivers unmatched reliability no matter the conditions.

Reinforced Carbon Cage

The OSPW RS introduces a strengthened carbon cage, engineered for improved rigidity, durability, and long-term performance. This is not only a visual redesign — it’s a structural upgrade designed to meet the demands of modern road and triathlon racing.

What’s in the Box

- Complete OSPW RS ALPHA System for Shimano 105 7150

Specifications

- Discipline: Road / Triathlon

- SKU: 113497

- Net Weight: 101 g

- Gross Weight: 299 g

- Pulley Material: Aluminium

- Derailleur Compatibility: Shimano 105 Di2 (7150)