STONE 110 BCD Round Chainring for Shimano 105 R7000, Ultegra R8000 & Dura-Ace R9100 – 1x Narrow-Wide, 34T–70T
Upgrade your 1x road bike with this STONE round chainring, engineered for Shimano 110 BCD 4-arm road cranksets. Full CNC machining and durable 7075-T651 aluminum construction pair with a narrow-wide tooth profile for dependable chain retention.
Note: This chainring is designed for 1x drivetrain systems only and is not suitable for 2x front shifting.
Compatibility
This chainring fits the following cranksets:
- Shimano 105 R7000 crankset
- Shimano Ultegra R8000 crankset
- Shimano Dura-Ace R9100 crankset
- Shimano 9000, 6800, 5800 and 4700 cranksets
- Most 110 BCD 4-arm cranksets and power meters
Not compatible with: Shimano 105 R7100, Ultegra R8100 and Dura-Ace R9200 cranksets.
Key Fitment Details
| Item | Specification |
|---|---|
| BCD | 110 BCD round |
| Crank type | Shimano 4-arm road crankset |
| Drivetrain | 1x only |
| Front derailleur | Not supported |
| 2x system | Not supported |
Available Styles
Choose from four style and color combinations:
- Hollow Black
- Hollow Silver
- AERO Black
- AERO Silver
Tooth Options
- Hollow style: 34T–60T
- AERO style: 42T–70T
Available sizes may include:
34T / 36T / 38T / 40T / 42T / 44T / 46T / 48T / 50T / 52T / 54T / 56T / 58T / 60T / 62T / 64T / 66T / 68T / 70T
Chain Speed Compatibility
This chainring supports the following chains:
- 9 / 10 / 11 / 12-speed MTB chains
- 9 / 10 / 11-speed SRAM road bike chains
- 9 / 10 / 11 / 12-speed Shimano road bike chains
Not compatible with the SRAM AXS 12-speed Flattop chain.
Material & Specifications
| Specification | Detail |
|---|---|
| Brand | STONE |
| Product type | Round narrow-wide chainring |
| Material | High-strength aluminum 7075-T651 |
| Material hardness | HB150 |
| Surface treatment | Anodized |
| Processing | High-speed full CNC machining |
| CNC precision | 0.03 mm |
| Color options | Black / Silver |
| BCD | 110 BCD round |
| Thickness | 4 mm |
| Tooth profile | Narrow-wide tooth |
| System | 1x drivetrain only |
Advantages
High-Strength 7075-T651 Aluminum
Made from premium 7075-T651 aluminum for excellent stiffness, durability and long service life.
Precision CNC Machining
High-precision CNC machining delivers working accuracy up to 0.03 mm for 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, each offered in black or silver to match different bike builds.
Package Includes
- 1 × Chainring
- 4 × Aluminum bolts
Hollow Style Size & Weight Reference
| Teeth | Max Diameter | Weight |
|---|---|---|
| 42T | 178 mm | 86 g |
| 44T | 186 mm | 88 g |
| 46T | 194 mm | 100 g |
| 48T | 202 mm | 105 g |
| 50T | 210 mm | 114 g |
| 52T | 219 mm | 130 g |
| 54T | 226 mm | 140 g |
| 56T | 235 mm | 155 g |
| 58T | 242 mm | 159 g |
| 60T | 250 mm | 163 g |
Larger sizes (max diameter): 62T – 257 mm, 64T – 265 mm, 66T – 273 mm, 68T – 281 mm, 70T – 289 mm, 72T – 298 mm.
Note: The size and weight data above are for reference only. Actual weight may vary slightly depending on production batch and chainring style.
