The CyclingCeramic OSPW Race for Shimano Ultegra and Dura-Ace drivetrains is engineered to deliver enhanced drivetrain efficiency, smoother shifting, and improved overall performance for high-level road cycling. Designed as a performance-focused upgrade, the oversized pulley wheel system optimizes chain flow, reducing friction and improving power transfer across varied riding conditions.
At the core of the system is a precision-engineered oversized pulley configuration featuring a 14-tooth upper and 19-tooth lower pulley. This design minimizes chain articulation and mechanical resistance, resulting in more efficient drivetrain operation and consistent shifting under load.
Constructed with CNC-machined aluminium pulley wheels combined with a carbon UD rear plate and aluminium front plate, the OSPW Race delivers an optimal balance of lightweight performance and structural durability. The aerodynamic design further enhances drivetrain efficiency, contributing to improved speed and responsiveness on the road.
Equipped with hand-built ceramic bearings, the system significantly reduces friction during gear transitions, ensuring ultra-smooth shifting performance and improved energy efficiency. Independent testing has demonstrated exceptionally low friction levels, helping riders achieve measurable gains in drivetrain precision and performance.
Designed for Shimano Ultegra and Dura-Ace platforms across both 11-speed and 12-speed systems, the OSPW Race integrates seamlessly into modern road bike setups. Its compatibility across multiple generations of Shimano groupsets makes it a versatile upgrade for performance-focused riders.
Installation is straightforward, and for optimal performance, it is recommended to use a new chain with an additional 2 to 4 links to ensure proper chain length and setup.
At Mastermind Bicycle Studio, the official distributor of CyclingCeramic in India, the OSPW Race for Shimano Ultegra & Dura-Ace is available for riders seeking a premium drivetrain upgrade with improved efficiency, durability, and precision.
Specifications
• Pulley Wheels: 14T upper / 19T lower
• Pulley Material: CNC-machined aluminium
• Cage Material: Carbon UD with aluminium structure
• Bearings: Hand-built ceramic bearings
• Compatibility: Shimano Ultegra & Dura-Ace (11s & 12s, SS & GS)
• Cassette Compatibility: 11–34T
• Speed: 11 & 12-speed
• Spring Tension: 2 settings
• Weight: 110g
Price
₹ 35,990
Mastermind Bicycle Studio also supports authorised dealers across India. Riders are encouraged to connect with their nearest dealer for consultation, installation guidance, and product availability.
