Shimano Ultegra FC-R8000 Chainring - 39T
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eBayShimano Ultegra FC-R8000 39T Chainring 2x11 for 53-39T MW - Y1W839000 - Black
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Product Information
Full details
The Shimano Ultegra FC-R8000 39T chainring is an essential component for road cyclists using a 2x11 speed drivetrain who demand precise shifting performance and long-term durability. Designed specifically as a replacement for the FC-R8000 crankset, this precision-engineered ring ensures seamless chain engagement under load, though it requires specific compatibility with the Ultegra R8000 series crank architecture to function correctly.
All features
| Material | Polyester |
|---|---|
| Model Part Number | Y1W839000 |
| Brand | SHIMANO |
Extended Product Information
FAQs
Will this fit my Dura-Ace crankset?
No, this is specifically designed for the Ultegra FC-R8000 crankset and may not align correctly with the spider geometry of other series.
Do I need to replace the chain when installing a new chainring?
It is highly recommended to install a new chain whenever replacing chainrings to ensure optimal interface and prevent rapid wear.
Can I use this with a 10-speed chain?
No, this chainring is optimized for 11-speed drivetrain tolerances. Using it with a 10-speed chain will result in poor shifting and potential chain binding.
Is the mounting hardware included?
No, this product typically includes only the chainring. You should reuse your existing chainring bolts if they are in good condition.
How often should I replace this chainring?
Replacement intervals depend on mileage and maintenance, but generally, chainrings should be replaced every two to three chain replacements or when teeth appear visibly hooked.
Troubleshooting
Chain drops during shifts
Check front derailleur alignment and ensure the chainring bolts are tightened to the specified manufacturer torque.
Increased drivetrain noise
Verify that your chain is not worn beyond 0.75% stretch, as a stretched chain will cause premature wear on new chainring teeth.
Difficulty shifting under load
Inspect the shifting ramps on the chainring for debris or damage; ensure the derailleur cable tension is properly indexed.
Pros and Cons
Pros
- Seamless shifting performance
- Direct fit for FC-R8000 cranksets
- Excellent durability under high power output
- Lightweight construction
Cons
- Not compatible with older 10-speed systems
- Requires professional tools for installation
- Limited to specific R8000 crank bolt patterns
Setup, Compatibility & Care
To install this chainring, you will need a standard set of chainring bolt tools and a torque wrench. Ensure the chainring is aligned so that the stamped markings face inward toward the crank arm.
- Compatibility: Compatible exclusively with Shimano Ultegra FC-R8000 cranksets.
- Care: Regularly inspect for 'shark tooth' wear patterns. Clean with a non-corrosive degreaser and maintain proper chain lubrication to extend the lifespan of both the ring and your drivetrain. Avoid using harsh chemical cleaners that may compromise the surface finish.