OSPW RS ALPHA for Shimano 7150 TEAM Logo

The OSPW RS ALPHA brings the most advanced "Racing Sport" technology to the Shimano 105 Di2 platform. It features a reinforced, angular carbon fiber cage designed for maximum stiffness, ensuring that shifting remains lightning-fast and precise. This system utilizes ALPHA Disc Pulley Wheels, which feature a solid aluminum disc construction to prevent debris from getting caught and to increase lateral stiffness. It also includes the Active Debris Remover (ADR) technology—a patent-pending system that uses centrifugal force to fling mud and water away from the bearings while you ride.

Key Features

• Team Edition Branding: Features the signature oversized white logo for a professional "pro-peloton" aesthetic.

• ALPHA Disc Technology: Solid aluminum disc pulleys provide superior durability and aerodynamics while being "clog-proof" against road grime.

• Active Debris Remover (ADR): Integrated bearing protection that dynamically extracts contaminants to keep the system spinning with minimal resistance.

• Further Drive Technology: Optimized 13-tooth upper and 19-tooth lower pulley profiles reduce chain friction and mechanical noise.

• Handbuilt Ceramic Bearings: Equipped with CeramicSpeed's world-class ceramic balls that are 3-5x more durable than steel.

Specifications

• Compatibility: Shimano 105 Di2 (RD-R7150) 12-speed.

• Pulley Setup: 13-tooth upper / 19-tooth lower.

• Max Cassette Size: Supports up to a 36T cassette.

• Bearing Options: Available with Coated Ceramic (Lifetime Warranty) or Standard Ceramic.

• Cage Material: Carbon fiber reinforced Polyamide.

Typical Components Included

• Complete OSPW RS ALPHA Team Edition System.

• CeramicSpeed Pulley Oil (15ml).

• Installation hardware and B-Gap adjustment guide.

• Official CeramicSpeed sticker sheet.