Designed for road bike drivetrains, this 8-bolt direct mount chainring features a 4.2 mm offset and is specially engineered for SRAM AXS Flattop chains.
Compatibility
Designed for road and gravel bikes.
Not compatible with MTB cranksets due to different offset requirements.
Check here if want 26-40T 3mm offset for MTB
Compatible Cranksets
- For SRAM Force AXS DUB
- For SRAM Red AXS DUB
- For SRAM Rival AXS
- For SRAM QUARQ cranksets
- For SRAM XPLR 12-speed / 13-speed
- For 8-bolt direct mount cranksets
Not Compatible With
- SRAM 3-bolt direct mount cranksets
- MTB cranksets
- Non-AXS chains
- Standard 11-speed chains
Product Specifications
| Item | Specification |
|---|---|
| Brand | Stone |
| Material | Aluminum 7075-T651 |
| Color | Black, anodized finish |
| Speed | For SRAM AXS Flattop 12-speed chain only |
| Tooth Profile | Narrow-wide |
| Mount Type | 8-bolt direct mount |
| Chainline | 46 mm |
| Offset | 4.2 mm |
| Thickness | 8 mm |
| Hardness | HB150 |
| Available Sizes | 40T–58T |
| CNC Precision | 0.03 mm |
Note: Bolts are not included and must be purchased separately.
Buy 8 bolts screw here
Package Includes
- 1 × Stone direct mount chainring
- Bolts are not included
Size & Weight Chart
| Teeth | Max Diameter | Weight |
|---|---|---|
| 40T | 169 mm | 115 g |
| 42T | 178 mm | 122 g |
| 44T | 186 mm | 130 g |
| 46T | 194 mm | 138 g |
| 48T | 202 mm | 142 g |
| 50T | 210 mm | 150 g |
| 52T | 219 mm | 159 g |
| 54T | 226 mm | 171 g |
| 56T | 235 mm | 185 g |
Important Notes
- This chainring is designed for SRAM AXS Flattop 12-speed chains only.
- For MTB cranksets, please choose the 26T–40T version with 3 mm offset.
- Please confirm your crankset uses an 8-bolt direct mount interface before purchasing.
- Most Stone chainrings are made to order. Please allow 3–5 days for production and preparation before shipping.






