Shimano Chainring Fcr8000 50Ms 50-34T
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What Is It?
The Shimano FC-R8000 50T-MS Chainring is a genuine replacement outer chainring for the Shimano Ultegra FC-R8000 11-speed road crankset with a 50-34T compact gearing. Engineered with Shimano's advanced HOLLOWGLIDE construction, precision-machined teeth, and optimized shift ramps, it delivers fast, smooth, and reliable front shifting when paired with the matching 34T-MS inner chainring.
Constructed from aluminium with a carbon fibre reinforced polymer (CFRP) core, the 50T-MS chainring offers exceptional stiffness, low weight, and efficient power transfer. It is designed specifically for Shimano's 110 mm asymmetric 4-arm spider and is compatible with HG and LINKGLIDE 11-speed chains.
Key Benefits
- Genuine Shimano Replacement: Original equipment outer chainring for the Shimano Ultegra FC-R8000 crankset.
- Optimised for 50-34T Compact Setup: Designed to pair with the 34T-MS inner chainring.
- HOLLOWGLIDE Technology: Hollow aluminium/CFRP construction provides an excellent balance of stiffness, strength, and low weight.
- Precise Front Shifting: Shimano's engineered shift ramps and tooth profiles deliver fast and accurate gear changes.
- 11-Speed Compatible: Designed for Shimano HG and LINKGLIDE 11-speed chains.
- Direct Fit: Fits Shimano's 110 mm asymmetric 4-arm HOLLOWTECH II crank spider.
- Long Service Life: Premium Shimano construction ensures reliable performance and durability.
Specifications
| Specification | Details |
|---|---|
| Product | Shimano FC-R8000 Outer Chainring |
| Chainring Size | 50T |
| Chainring Code | 50T-MS |
| Shimano Part Number | Y1W898020 |
| Series | Shimano Ultegra R8000 |
| Compatibility | FC-R8000 50-34T Compact Crankset |
| Speed Compatibility | 11-Speed |
| BCD | 110 mm Asymmetric 4-Bolt |
| Material | Aluminium + Carbon Fibre Reinforced Polymer (CFRP) |
| Finish | Anodised |
Compatible Components
The Shimano FC-R8000 50T-MS Chainring is compatible with:
- Shimano FC-R8000 50-34T compact crankset
- Shimano 34T-MS inner chainring
- Shimano HG 11-speed chains
- Shimano LINKGLIDE 11-speed chains
- Shimano Ultegra R8000 11-speed road drivetrain components
It is designed exclusively for the 50-34T compact gearing configuration.
Who Is This Best Suited For?
The Shimano FC-R8000 50T-MS 50-34T Chainring is ideal for:
- Road cyclists
- Endurance riders
- Club cyclists
- Competitive racers
- Gran Fondo riders
- Cyclists replacing a worn outer chainring
- Riders maintaining a Shimano Ultegra R8000 groupset
- Anyone wanting to restore original Shimano front shifting performance
Compatibility Note: The 50T-MS chainring is designed exclusively for the Shimano Ultegra FC-R8000 50-34T compact crankset and should be paired with the matching 34T-MS inner chainring for optimal front shifting. It is not interchangeable with the 52T-MT (52-36T), 53T-MW (53-39T), or 46T-MT (46-36T) chainrings, as each gearing combination uses dedicated tooth profiles and shift ramps.
