Shimano Rear Derailleur Pulley AssembliesReplaces Y5YC98110. Item Specifications: Fits Brand, Shimano, Drivetrain Speeds, 11,

Shimano Ultegra RD-6800 11-Speed Rear Derailleur Pulley Set with Durable Steel Bearings

Reference Number: 4O37A2

Enhance your Shimano Ultegra RD-6800 11-Speed Rear Derailleur with our high-performance Version 2 Pulley Set - the perfect upgrade for optimal shifting efficiency and precision. Designed specifically for Shimano Ultegra R/D systems, these upgraded pulleys are engineered to provide smoother, more reliable gear transitions, ensuring you perform at your best on every ride.

Premium Materials & Advanced Engineering:

Crafted from durable, lightweight materials, the Shimano Ultegra RD-6800 11-Speed Pulley Set features high-quality aluminum and low-friction ceramic or coated bearings, reducing drivetrain resistance and enhancing overall performance. These pulleys are engineered to withstand the rigors of aggressive riding, endurance training, and competitive cycling.

Innovative Components & Technology:

This Version 2 pulley set replaces Shimano part Y5YC98110, offering improved durability and smoother operation. The precise engineering minimizes drivetrain slack and reduces chain noise, providing crisp, reliable shifts across the entire cassette. Compatible exclusively with Shimano's 11-speed systems, these pulleys are built to optimize gear engagement and extend component lifespan.

Versatile Style & Use Case:

Perfect for road cyclists, racers, and serious enthusiasts looking to upgrade their drivetrain for maximum efficiency. Whether you're upgrading an existing Ultegra derailleur or building a custom performance bike, these pulleys deliver a sleek, OEM-quality aesthetic that complements any cycling setup.

Key Features:

- Fits Shimano Ultegra R/D models with 11-speed drivetrains

- Replaces part Y5YC98110 for seamless compatibility

- Enhanced bearing technology for ultra-smooth shifting

- Lightweight yet durable construction for high-performance cycling

- Easy to install with precise fit and function

Upgrade your bike's drivetrain with the Shimano Ultegra RD-6800 11-Speed Rear Derailleur Pulley Set Version 2 to enjoy smoother shifts, increased efficiency, and a more responsive ride. Optimize your cycling setup today for improved performance on every journey.

  • Enhanced durability and smooth shifting performance with high-quality sealed bearing pulleys engineered specifically for Shimano Ultegra RD-6800 11-speed rear derailleurs.
  • Made from precision-machined materials to optimize weight savings and resistance to dirt, mud, and water, ensuring reliable performance in all cycling conditions.
  • Utilizes advanced bearing technology for reduced friction, improved chain stability, and more precise gear changes on competitive road and endurance rides.
  • Designed to seamlessly replace Y5YC98110, these pulleys offer a simple upgrade that enhances derailleur efficiency and prolongs component lifespan.
  • Ideal for road cyclists seeking optimum performance and sleek aesthetics, these Shimano Ultegra pulley sets are perfect for upgrading or maintaining high-performance drivetrains.
Item Specifications
Fits BrandShimano
Drivetrain Speeds11

Why 365 Cycles?

365 Cycles is an Authorized Shimano Dealer, and we offer the Full Shimano Warranty!

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Most orders placed during the workweek before 1:30 pm EST ship the same day, but in rare cases (peak season/holiday periods) handling time can take up to 48 hours. If you have questions regarding shipping estimates, please let us know prior to placing your order. There is a direct signature requirement for all orders over $500.

Please allow 1-2 business days for your order tracking to update.

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Combined Shipping Discounts

To offer customers savings on shipping, we offer discounts when shipping multiple items from our store. We cannot issue refunds on shipping once an order is finalized so please follow the 5 steps below and ask if you are having trouble with the discount before you make a purchase.

  1. Be sure you are using the US site: https://www.ebay.com
  2. Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
  3. Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
  4. Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
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Returns

365 Cycles offers returns for 30 days on new items in their original, intact packaging. Return shipping for ALL orders are to be paid by the buyer. Please be sure to read our return policy entirely and if you have any questions, please contact Customer Service.

Full refunds are issued on items that are brand new and we are able to resell as new. 365 Cycles reserves the right to deny returns that are outside of policy including, but not limited to, used items, items missing original packaging, items with damaged manufacturer packaging, or international orders. Return orders must be shipped in a box or bubble mailer. Items shipped without an outer box will incur a restocking fee. You will be contacted through eBay if your return is ineligible for a full refund.

Returns must be initiated within 30 days from purchase date through your Purchase History under My eBay.

If we make an error in shipping, please contact us -- we will ship out the correct item and provide a free prepaid return label as quickly as possible!

Exchanges

If you need to exchange your order, the fastest and easiest way to do this is to reorder. We will ship your new order immediately and, in the meantime, please initiate a return through eBay on the original item and return it. We will refund for the returned item once it is received back.



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Company Details

365 Cycles
1180 Enterprise Rd
East Petersburg, PA 17520
United States

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