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For cyclists who demand elite performance from every component, the Nova Ride Carbon Ceramic Oversized Derailleur Cage for Shimano Road 12S sets a new benchmark in drivetrain optimization. Built for the latest generation of Shimano’s most advanced road groupsets — Ultegra R8100 and Dura-Ace R9200 series — this meticulously engineered component is crafted to deliver maximum transmission efficiency, mechanical precision, and undeniable visual flair.

Conceived and developed by Nova Ride’s expert French engineers, the system features a striking ultra-light carbon fiber cage, paired with two CNC-machined 7075 aluminum pulley wheels in oversized 14- and 17-tooth configurations. These oversized pulleys guide your chain with superior smoothness, minimizing chain articulation and dramatically reducing friction at high speeds or under heavy load — giving you free watts when you need them most.

Inside each pulley lies a set of full ceramic sealed bearings, completely resistant to rust, contamination, and mechanical degradation. The entire design is protected with anodized alloy bearing covers, ensuring long-term performance without the need for constant servicing. In contrast to standard plastic jockey wheels that degrade quickly, Nova’s 7075 alloy pulleys are built for thousands of kilometers of use, making this upgrade an intelligent, long-term investment for serious riders.


Specifically Engineered for Shimano’s 12-Speed Revolution

This version of the Nova Ride cage is precisely tailored for Shimano’s Di2 12-speed platforms, ensuring a seamless integration with:

  • Shimano Ultegra R8100 / R8150

  • Shimano Dura-Ace R9200 / R9250

It is not compatible with older 11-speed groupsets or the more recent Shimano 105 Di2 12-speed series, which uses a different architecture. Despite cosmetic similarities across Shimano product lines, derailleur mounting and pulley alignment differ between generations — making precision-specific compatibility crucial.


Key Performance Highlights:

  • Carbon Fiber Cage: Ultra-rigid and incredibly light, optimized for efficient power transmission.

  • Oversized Pulley System (14T upper / 17T lower): Enhances drivetrain fluidity and reduces friction through a flatter chain line and reduced articulation.

  • 7075-T6 Aluminum Construction: Strong, wear-resistant, and race-proven for long-term durability.

  • Full Ceramic Sealed Bearings: Offer unmatched smoothness and complete corrosion resistance, even in extreme conditions.

  • Maintenance-Free Design: Bearings are protected with anodized alloy covers, eliminating the need for frequent cleaning or lubrication.


Technical Specifications:

  • Weight: Just 68 grams, ensuring zero compromise on performance or climbing efficiency.

  • Maximum Recommended Cassette Size: 34T, for optimal shifting range and chain tension across gears.

  • Chain Compatibility: Designed specifically for Shimano 12-speed chains; ensure your drivetrain is fully 12S compatible for best results.


Installation Guidance & Usage Tips:

  • This cage is designed for electronic (Di2) derailleurs in Shimano’s 12-speed road lineup. Manual/mechanical versions or mixed-generation setups are not supported.

  • If you’re upgrading from a standard pulley system, you may need to check chain length and B-screw adjustment to ensure optimal shifting and derailleur clearance.

  • No need to worry about maintenance — the sealed ceramic bearing system is engineered to withstand the elements, giving you consistent performance season after season.


Compatibility Summary:

Compatible With:

  • Shimano Ultegra Di2 R8100 / R8150

  • Shimano Dura-Ace Di2 R9200 / R9250

Not Compatible With:

  • Shimano 105 Di2 12-speed (newest entry-level 12S)

  • All Shimano 11-speed versions (Ultegra R8000, Dura-Ace R9100, etc.)

  • Older mechanical drivetrains or clutch-equipped derailleurs

⚠️ Important Note: Visual resemblance between Shimano’s 11S and 12S derailleurs is misleading — internal geometry, spacing, and mounting points differ. Always verify group compatibility before installation.


Final Thoughts:

The Nova Ride Carbon Ceramic Oversized Derailleur Cage – Shimano Road 12S is more than an accessory; it’s an aerodynamic and mechanical advantage built for cyclists who live to push the limits. Whether you're racing crits, climbing alpine stages, or simply demanding the smoothest and most efficient drivetrain possible, Nova Ride delivers an upgrade that feels as fast as it looks.

Lightweight, low-drag, and maintenance-free — it’s the choice of modern cyclists chasing perfection in every gear shift.