Description

KCNC Oversized Jockey Wheel System for Shimano Dura-Ace 9000 & Ultegra 6800
Unlock the full potential of your high-performance Shimano drivetrain with the KCNC Oversized Jockey Wheel System. Engineered for competitive cyclists and performance enthusiasts who demand maximum efficiency, this premium transmission upgrade is designed to reduce friction and save precious watts. By optimising your rear derailleur, you can translate more of your power directly into speed, giving you a tangible advantage on the road, whether you´re chasing a personal best or sprinting for the finish line. This system is not just a component; it´s a statement of performance and precision.
Experience Unmatched Drivetrain Efficiency
The core benefit of the KCNC Oversized Jockey Wheel System lies in its superior efficiency. The system dramatically reduces drivetrain friction by employing an oversized 14-tooth upper and 16-tooth lower pulley wheel. This larger diameter allows the chain to navigate the derailleur cage with a much gentler curve, significantly decreasing the articulation angle of each chain link. Less bending means less friction and, ultimately, more power delivered to your rear wheel. This translates into tangible watt savings, allowing you to ride faster for the same effort or conserve energy for that crucial final attack.
Lightning-Fast and Precise Shifting
Beyond pure efficiency, this jockey wheel system enhances your shifting performance. The custom-engineered cage provides exceptional stiffness, ensuring there is no flex or deformation, even under the high torque of a full-gas sprint or a steep climb. This rigidity, combined with the high-performance precision bearings, guarantees that your chain moves with instant response and accuracy. Experience crisper, faster, and more reliable gear changes, allowing you to maintain your cadence and rhythm without interruption.
Main Features
* Oversized Pulley Configuration: Features a 14-tooth upper guide pulley and a 16-tooth lower tension pulley to minimise chain friction and maximise power transfer.
* Custom-Engineered Cage: A purpose-built, rigid cage design ensures flawless shifting accuracy and durability under all riding conditions.
* High-Performance Precision Bearings: Equipped with exceptionally smooth bearings in each pulley to minimise rotational resistance for a free-spinning drivetrain.
* Direct-Fit Upgrade: Designed for seamless integration with a range of specific Shimano 10-speed and 11-speed rear derailleurs, ensuring straightforward installation.
* Aesthetic Enhancement: The striking Gold finish provides a professional, custom look that will make your bike stand out from the pack.
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Technical Specifications
* Product Name: KCNC Jockey Wheel System SH6800/9000 14+16D Gold
* Category: Spare Parts
* Subcategory: Transmission
* Pulley Size (Upper): 14-Tooth
* Pulley Size (Lower): 16-Tooth
* Color: Gold
* Shimano Dura-Ace 10v RD-7900-SS
* Shimano Dura-Ace Di2 10v RD-7970-SS
* Shimano Dura-Ace 11v RD-9000-SS
* Shimano Ultegra Di2 10v RD-6770-SS
* Shimano Ultegra 11v RD-6800-SS
* Shimano Ultegra Di2 11v RD-6870-SS
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Boxes
* 1 x KCNC Complete Oversized Pulley Wheel System (Cage and 14T/16T Pulleys) fully assembled