Description

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SHIMANO RD-7900 Dura Ace Jockey Wheel Set | Genuine Transmission Spare Parts
Restore the flawless, lightning-fast shifting performance your high-end road bike was built for with the genuine SHIMANO Dura-Ace RD-7900 Jockey Wheel Set. As a critical component within your bike´s transmission, jockey wheels can wear over time, leading to decreased shifting accuracy, increased drivetrain noise, and a loss of efficiency. This premium replacement set is engineered by SHIMANO to bring your Dura-Ace rear derailleur back to its original factory-spec condition, ensuring every gear change is as crisp and immediate as the first. Designed for discerning cyclists who demand nothing but the best, this set is the definitive choice for maintaining the integrity and performance of your top-tier drivetrain.
Key Benefits of the Dura-Ace Pulley Set:
* Restore Peak Shifting Precision: Worn-out pulleys introduce slack and hesitation into your shifting. By installing this new set, you eliminate that play, restoring the immediate and precise chain movement that the Dura-Ace series is renowned for. Experience decisive, accurate gear changes on every climb, sprint, and descent.
* Maximize Drivetrain Efficiency: The heart of this set lies in its ultra-smooth, sealed precision bearings. These high-quality bearings significantly reduce friction as the chain passes through the derailleur cage, meaning more of your pedaling power is transferred directly to the rear wheel. Enjoy a quieter, smoother, and more efficient ride.
* Enhanced Durability and Longevity: Manufactured in Japan to SHIMANO´s exacting standards, this jockey wheel set is built to withstand the rigors of competitive racing and intensive training. The sealed bearing design not only improves performance but also protects the internal mechanism from dirt, water, and road grime, ensuring lasting durability and a longer service life.
* Guaranteed Compatibility and Performance: As a genuine SHIMANO spare part, this set guarantees perfect fitment and seamless integration with a range of high-performance Dura-Ace rear derailleurs. Avoid the risks associated with third-party components and trust the engineering of the original manufacturer to uphold your bike´s performance.
Main Features
This essential transmission spare part is meticulously crafted to deliver uncompromising performance. It includes a complete set of two wheels—the upper guide pulley and the lower tension pulley—both featuring superior sealed precision bearings. These bearings are the key to the set´s incredibly low friction and smooth rotation. The design is specifically optimized for the demanding environment of road cycling, ensuring your chain is guided perfectly for flawless shifting under load. Finished in a sleek black, this set will blend seamlessly with your Dura-Ace derailleur, maintaining the professional aesthetic of your bicycle.
Jockey wheels
The jockey wheels, or pulley wheels, are the unsung heroes of your rear derailleur. The upper wheel, known as the Guide Pulley, is responsible for guiding the chain precisely as it moves between different cogs on the cassette. The lower wheel, the Tension Pulley, maintains the correct chain tension throughout the system. The quality of these two small wheels has a massive impact on your entire cycling experience, influencing shifting speed, accuracy, and overall drivetrain noise.
Technical specifications
Brand: SHIMANO
Specifications:
* Product: SHIMANO Pulley Set (Self-Service Package)
* Series: Dura-Ace
* Type: Premium road wheel set
* Bearings: Sealed precision bearing for ultra-smooth operation
* Compatibility: Designed for SHIMANO rear derailleurs RD-7900, RD-7970 (Di2), RD-7800, and RD-7700.
* Part Name: SHIM.PULLEY SET
* Contents: 2 Pieces (Guide and Tension Pulleys)
* Color: Black
* JP (Japan)