STONE 110 BCD Oval Narrow-Wide Chainring for Shimano 105 R7000 / Ultegra R8000 / Dura-Ace R9100 1x Drivetrains (36-60T)
Upgrade your 1x road bike with the STONE 110 BCD oval chainring. Precision CNC-machined from high-strength 7075-T651 aluminum, it pairs an oval chainring shape with a narrow-wide tooth profile for dependable chain retention on single-chainring setups.
Important: this chainring is designed for 1x drivetrain systems only. It is not intended for 2x front shifting, and no front derailleur is supported.
Compatibility
This chainring fits Shimano 110 BCD 4-arm road cranksets, including:
- Shimano 105 R7000
- Shimano Ultegra R8000
- Shimano Dura-Ace R9100
- Shimano 9000, 6800, 5800 and 4700
- Most 110 BCD 4-arm cranksets and power meters
Not compatible with: Shimano 105 R7100, Ultegra R8100, Dura-Ace R9200.
Key specifications
- BCD: 110 BCD oval
- Crank type: Shimano 4-arm road crankset
- Drivetrain: 1x only
- Front derailleur: not supported
- 2x system: not supported
Available Styles
Two styles are offered, each available in black or silver:
- Hollow Black
- Hollow Silver
- AERO Black
- AERO Silver
Teeth options
- Hollow style: 36T-60T
- AERO style: 42T-60T
Available sizes may include: 36T / 38T / 40T / 42T / 44T / 46T / 48T / 50T / 52T / 54T / 56T / 58T / 60T.
Chain Speed Compatibility
This chainring supports the following chains:
- 9 / 10 / 11 / 12-speed MTB chains
- 9 / 10 / 11-speed SRAM road chains
- 9 / 10 / 11 / 12-speed Shimano road chains
Not compatible with the SRAM AXS 12-speed Flattop chain.
Material & Specifications
- Brand: STONE
- Product type: oval narrow-wide chainring
- Material: high-strength 7075-T651 aluminum
- Material hardness: HB150
- Surface treatment: anodized
- Processing: high-speed full CNC machining
- CNC precision: 0.03 mm
- Color options: black / silver
- BCD: 110 BCD oval
- Thickness: 4 mm
- Tooth profile: narrow-wide
- System: 1x drivetrain only
Advantages
High-strength 7075-T651 aluminum
Premium 7075-T651 aluminum delivers excellent stiffness, durability and a long service life.
Precision CNC machining
High-precision CNC machining with working accuracy up to 0.03 mm ensures stable performance and accurate installation.
Improved chain retention
The narrow-wide tooth design helps keep the chain securely in place while riding.
Multiple style options
Available in hollow and AERO styles with black or silver finishes to match different bike builds.
Package Includes
- 1 × chainring
- 4 × aluminum bolts
Hollow Style Size & Weight Reference
| Teeth | Max Diameter | Weight |
|---|---|---|
| 42T | 178 mm | 77 g |
| 44T | 186 mm | 92 g |
| 46T | 194 mm | 99 g |
| 48T | 202 mm | 103 g |
| 50T | 210 mm | 112 g |
| 52T | 219 mm | 124 g |
| 54T | 226 mm | 136 g |
| 56T | 235 mm | 145 g |
| 58T | 242 mm | 160 g |
| 60T | 250 mm | 176 g |
Note: the size and weight data above are for reference only. Actual weight may vary slightly depending on production batch and chainring style.
