CeramicSpeed OSPW Aero Pulley Wheel for SRAM Red/Force AXS

The CeramicSpeed OSPW Aero Pulley Wheel for SRAM Red/Force AXS is engineered to be the fastest pulley system ever produced. Wind-tunnel testing shows a 40% friction reduction compared to stock derailleur pulleys, giving riders a measurable speed advantage in time trials and triathlons. Co-developed with renowned aerodynamicist Simon Smart, it delivers class-leading efficiency trusted by world champions.

Oversized Wheels for Optimal Efficiency: This system features a 15-tooth upper and 19-tooth lower pulley, designed to optimise chain articulation and reduce drivetrain resistance. The oversized aluminium pulleys ensure smoother rotation and more stable chain engagement, creating an ultra-efficient drivetrain feel during high-intensity racing and long-distance efforts.

Handbuilt CeramicSpeed Bearings: Each pulley wheel is equipped with handbuilt, coated CeramicSpeed Bearings for unmatched smoothness and longevity. These bearings offer extremely low rolling friction and enhanced durability, allowing riders to maintain top performance across thousands of kilometres. The coated races further reduce drag and extend bearing life under demanding conditions.

Customisable Tension and Wide Compatibility: The OSPW Aero system includes two spring-tension settings, allowing riders to fine-tune their setup for terrain or race style. It is compatible with SRAM Red and Force AXS derailleurs, including the 2020 11-speed Red eTap with clutch, as well as the latest Force AXS D2 models. This makes it a versatile upgrade for modern aero-focused drivetrains.

Chosen by elite athletes worldwide, the OSPW Aero system delivers the perfect combination of aerodynamics, durability and ultra-low friction for riders seeking every possible performance gain.

We ship across India. Shipping is free on orders above ₹2,000, and ₹99 is charged on orders below ₹2,000. Cash on Delivery is available for orders up to ₹20,000, with additional COD charges based on order value. Most orders are delivered within 3–6 working days, though delays may occasionally occur. Please note that most Shimano products may take longer to ship. View full shipping policy.

Returns can be initiated within 7 days of delivery. Items must be unused, in original condition, and returned with all tags and packaging intact. Returns are available only on select categories such as apparel, helmets, jerseys, gloves, and similar items. Wetsuits and products discounted above 5% are not eligible for return.

Returns are not accepted for compatibility-related issues unless the product description on our website was incorrect. Return shipping must be arranged by the customer, as pickup is not available.

For eligible returns, you can choose an exchange, store credit, or a monetary refund. Refunds are processed after deduction of applicable shipping and transaction charges. Order cancellations are only possible before the order is processed. View full Return & Refund Policy.