CeramicSpeed OSPW System for SRAM Red, Force & AXS – Oversized Pulley Wheel Upgrade
The CeramicSpeed OSPW (Oversized Pulley Wheel) System for SRAM Red, Force and AXS is a premium drivetrain upgrade engineered to deliver maximum efficiency, reduced friction, and elite-level performance. Designed for high-end road and gravel bikes equipped with SRAM electronic drivetrains, this oversized pulley wheel system is widely regarded as one of the fastest and most efficient upgrades available.
- Oversized 15T/19T pulley wheels for maximum drivetrain efficiency
- Compatible with SRAM Red and Force AXS rear derailleurs
- Optimised for 10-33T cassette range
- Custom molded carbon fibre cage for lightweight stiffness
- Hand-built CeramicSpeed bearings for ultra-low friction
- Dual spring tension settings for performance tuning
- Developed and designed in Denmark
- 4–6 year manufacturer warranty
At the heart of the system are 15T upper and 19T lower oversized pulley wheels, carefully optimised to reduce chain articulation and mechanical drag, improving drivetrain efficiency and power transfer. The OSPW system is compatible with SRAM Red and Force AXS rear derailleurs, supporting cassette ranges including 10-33T to match original equipment specifications.
The custom-designed molded carbon fibre cage provides exceptional stiffness and lightweight performance, ensuring precise shifting and long-term durability. Each pulley wheel is fitted with hand-built CeramicSpeed bearings, delivering ultra-low friction, enhanced longevity, and superior smoothness compared to standard pulley systems.
Two adjustable spring tension settings allow riders to fine-tune the setup based on riding conditions, whether optimising for racing efficiency or mixed terrain stability. Developed and designed in Denmark, the CeramicSpeed OSPW system is built to exacting standards and backed by a 4 to 6-year warranty, offering long-term reliability and performance assurance.
Ideal for competitive cyclists, time trialists, triathletes, and performance-focused road riders, the CeramicSpeed OSPW for SRAM Red/Force/AXS delivers measurable gains in efficiency and a premium carbon aesthetic upgrade.