STONE Oval Narrow-Wide Chainring 110 BCD for Shimano 105 R7100 / Ultegra R8100 / Dura-Ace R9200, 36T–60T, CNC 7075 Aluminum, 1x Road Bike 9–12 Speed
Available Styles & Tooth Options
Styles
Choose from four finishes to match your build:
- Hollow Black
- Hollow Silver
- Aero Black
- Aero Silver
Teeth Options
Available in even-numbered tooth counts from 36T to 60T:
- 36T / 38T / 40T / 42T / 44T / 46T
- 48T / 50T / 52T / 54T / 56T / 58T / 60T
Compatibility
This oval chainring is designed for Shimano 110 BCD 4-arm road cranksets and is suitable for 1x single chainring setups only.
Perfect Fit For
- Shimano 105 R7100
- Shimano Ultegra R8100
- Shimano Dura-Ace R9200
Also Compatible With
- Shimano Dura-Ace R9100
- Shimano Ultegra R8000
- Shimano 105 R7000
- Shimano 9000 Series
- Shimano Tiagra 4700
- Shimano FC-5800
- Shimano FC-6800
- 110 BCD 4-arm power meters
Setup Requirements
| Requirement | Detail |
|---|---|
| BCD | 110 BCD |
| Drivetrain system | 1x only |
| Front derailleur | Not supported |
| 2x drivetrain | Not supported |
Important Compatibility Notice
This is an oval narrow-wide chainring designed for 1x drivetrains only. It cannot be used as an inner or outer chainring on 2x drivetrains and does not support front derailleur shifting.
Chain Compatibility
| Chain Type | Compatibility |
|---|---|
| Shimano road chain | 9 / 10 / 11 / 12 speed |
| Shimano MTB chain | 9 / 10 / 11 / 12 speed |
| SRAM road chain | 9 / 10 / 11 speed |
| SRAM AXS 12-speed Flattop chain | Not compatible |
Note for Shimano 12-Speed Users
For Shimano 12-speed chains, replace the original Shimano 12-speed quick link with another brand’s 12-speed quick link, such as KMC, YBN, SUMC, or similar. The original Shimano 12-speed quick link may be too narrow for this chainring.
Material & Manufacturing
Made from high-strength Aluminum 7075-T651, this oval chainring delivers excellent stiffness, durability, and lightweight performance for road cycling.
Specifications
| Item | Detail |
|---|---|
| Material | Aluminum 7075-T651 |
| Hardness | HB150 |
| Surface treatment | Anodized |
| Processing | Full CNC machining |
| CNC precision | 0.03 mm |
| Thickness | 4 mm |
| Color options | Black / Silver |
| BCD | 110 BCD |
| Shape | Oval |
| Teeth options | 36T–60T |
| Weight | Approx. 24 g and above, depending on tooth size and style |
Key Features
Oval Chainring Design
The oval shape helps optimize pedaling efficiency by reducing the dead spot during the pedal stroke and improving power transfer.
Wide Teeth Range: 36T–60T
Available from 36T to 60T in even-numbered teeth, covering different riding styles, cadence preferences, and gear setups.
High-Strength 7075 Aluminum
Built with premium 7075-T651 aluminum for excellent strength, stiffness, and long-lasting performance.
Full CNC Machining
Precision CNC processing with 0.03 mm accuracy ensures a clean fit and smooth chain engagement.
Narrow-Wide Tooth Design
Improves chain retention and helps reduce chain drop on 1x road bike drivetrains.
Four Style Options
Available in hollow or aero designs, each offered in black or silver.
Package Includes
- 1 × STONE Oval Chainring
- 4 × Standard Aluminum Chainring Bolts
