STONE 110BCD Carbon Chainring with 4mm Inner Offset for Shimano 105 R7000–R9200 1x Conversion (42–60T)
Compatibility
This chainring is designed for 110 BCD 4-arm road cranks and 1x drivetrain conversions. It fits the following Shimano cranksets and power meters:
| Brand / Series | Compatible Models |
|---|---|
| Shimano 105 | R7000, R7100, R3000, 5800, 4700 |
| Shimano Ultegra | R8000, R8100, 6800 |
| Shimano Dura-Ace | R9100, R9200, 9000 |
| Power meters | Sigeyi and Xcadey 4-arm power meters |
Not supported: 2x setups, front shifters, and front derailleurs. This chainring is for 1x drivetrains only.
Why the 4mm Inner Offset Matters
The key advantage of this chainring is its 4mm inner offset. When converting a 2x road bike to a 1x setup, the chainline is usually wrong because standard chainrings have no inner offset. The 4mm offset restores a correct chainline after the conversion, making this chainring an ideal choice for 1x conversion builds.
Specifications
- BCD: 110, 4-arm
- Offset: 4mm
- Material: Aluminum 7075-T651 with carbon fiber inner spider
- Thickness: 4mm chainring + 4mm carbon fiber inner spider (8mm total)
- Material hardness: HB150
- CNC precision: 0.03mm working accuracy
- Surface treatment: Anodized, high-speed CNC machined
- Color: Black
Chain Compatibility
Supports 9-12s chains. AXS Flattop 12s chains are not supported by default; if you need an AXS-compatible tooth profile, please send us a message to customize.
Important Notice for 12s Chains
When using a Shimano 12s chain, you must replace the original Shimano quick link with another brand’s quick link, such as KMC or YBN. The original Shimano 12s quick link is too narrow and may cause problems while riding.
Size Options
| Teeth | Max Diameter (mm) | Weight (g) |
|---|---|---|
| 42T | 178 | 92 |
| 44T | 186 | 106 |
| 46T | 194 | 115 |
| 48T | 202 | 121 |
| 50T | 210 | 131 |
| 52T | 219 | 138 |
| 54T | 226 | 142 |
| 56T | 235 | 148 |
| 58T | 242 | 165 |
| 60T | 250 | 173 |
Key Advantages
- High-strength material: Aluminum 7075-T651 delivers excellent stiffness and durability.
- Precision manufacturing: High-precision CNC machining with 0.03mm working accuracy ensures a top-quality riding component.
Package Contents
- 1 x chainring
- 1 x carbon fiber inner spider
- 9 x bolts
