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Shimano Ultegra R8100 12-Speed 50t Asymmetric Aluminum Chainring - Lightweight, Durable, High-Rigidity Cycling Component
Reference Number: 4NR9YC
Enhance your road cycling performance with the Shimano Ultegra FC-R8100 12-Speed Chainring - the perfect upgrade for serious cyclists seeking precision, durability, and lightweight efficiency. Crafted with advanced materials and innovative technology, this 50-tooth asymmetric chainring is designed to deliver superior power transfer and seamless shifting on every ride.
Materials & Construction:
Constructed from high-quality aluminum with an anodized finish, the Shimano Ultegra FC-R8100 chainring combines lightweight performance with exceptional durability. Reinforced with carbon fiber plastic, it ensures resilience against wear and tear, making it ideal for both competitive racing and long-distance cycling.
Performance & Engineering:
Featuring Shimano's Hollowglide technology, this chainring offers increased rigidity and minimized weight without compromising strength. The asymmetric 110 BCD (Bolt Circle Diameter) optimizes chainring-to-crank interface, facilitating precise front shifting and enhanced power efficiency. Suitable for 12-speed HG chains, it guarantees smooth, reliable gear changes even under intense riding conditions.
Components & Technology:
Designed for compatibility with the Shimano FC-R8100 and FC-8100-P cranksets, this outer chainring pairs perfectly with a 34T inner chainring for a versatile 2x setup. Its round tooth profile promotes efficient chain engagement and minimizes drivetrain noise, ensuring a quiet and responsive ride.
Style & Use Case:
Sleek black finish provides a professional look that complements any road bike aesthetic. Whether you're racing on the circuit, tackling challenging climbs, or maximizing speed on your daily rides, the Ultegra FC-R8100 chainring offers the performance edge you need to achieve your cycling goals.
Innovative & Differentiating Features:
- Anodized aluminum body with carbon fiber reinforcement for durability and weight savings
- Hollowglide technology for increased stiffness and reduced weight
- Asymmetric 110 BCD design for optimized gear ratio and quick, precise shifts
- Compatible with 12-speed Shimano HG chains for smooth drivetrain performance
Upgrade your bike's drivetrain with the Shimano Ultegra FC-R8100 12-Speed Chainring - engineered for high performance, built for cyclists who demand excellence. Boost your gear shifting efficiency and power transfer with this top-tier component designed to elevate your riding experience.
- High-precision aluminum construction with anodized black finish ensures durability while keeping weight to a minimum, optimized for competitive cycling and everyday riding.
- Engineered with Shimano's Hollowglide technology, this 12-speed chainring provides exceptional stiffness and improved power transfer, enhancing pedaling efficiency and responsiveness.
- Compatible with Shimano FC-R8100 and FC-8100-P cranksets, the asymmetric 110 BCD design offers precise front shifting performance and easy installation for Shimano 12-speed HG chains.
- Designed for racing and high-performance riding, the 50-tooth outer chainring complements a 34-tooth inner ring, delivering optimal gear ratios for climbing, sprinting, and all-road adventures.
- Featuring innovative carbon fiber-reinforced plastic elements, this lightweight chainring combines strength and durability, making it an ideal upgrade for serious cyclists seeking speed, reliability, and style.
| Item Specifications | |
|---|---|
| Color | Black |
| Ring Position/Type | Outer |
| Tooth Count | 50 |
| Round or Oval | Round |
| Drivetrain Speeds | 12 |
| Chainring BCD | 110 Shimano Asymmetric |
| Material | Aluminum w/ Carbon Wrap |
| Defined Color | Black |
Why 365 Cycles?
365 Cycles is an Authorized Shimano Dealer, and we offer the Full Shimano Warranty!
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365 Cycles delivers all your cycling needs fast! We don't waste time preparing your order. Our priority is to serve our customers first and foremost. If you need help picking the right product, have questions about bike component compatibility, or just want to geek out about bikes we are here 7 days a week! Simply put, we are bike experts from dirt to tarmac and want to make sure you get the full 365 Cycles experience when you shop with us.
At 365 Cycles our mission is to simplify the shopping experience. We want to get you the right product in a quick time frame and be here if you need help with questions, warranty, friend to talk to, etc.
We’re dedicated to building lasting relationships with our customers, communities, and team members. We combine the knowledge and service of a traditional bicycle shop with the convenience of shopping in your own home.
Shipping & Handling
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.
- Cut off for SAME DAY SHIPPING- 1:30 pm EST Monday - Friday
- Friday afternoon -Sunday orders ship the following Monday
- Due to carrier restrictions orders shipped to: PO Box, HI, AK, & PR 365 Cycles may use a comparable service to what was selected.
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.- Be sure you are using the US site: https://www.ebay.com
- Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
- Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
- Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
- You’ll need to change the shipping method to Priority on every item in your cart before the rate can be calculated.
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.
