STONE Narrow-Wide Direct Mount Chainring for SRAM Force/RED 8-Bolt Cranks – Road & Gravel, 9–13 Speed (AXS Flattop Version Available)
Upgrade your drivetrain with the Stone Narrow-Wide Direct Mount Chainring, engineered specifically for SRAM 8-bolt road and gravel cranksets. Machined from high-strength 7075-T651 aluminum alloy, it combines stiffness, durability, and reliable chain retention, making it a dependable choice for road and gravel riding.
Specifications
| Item | Specification |
|---|---|
| Brand | Stone |
| Product Type | Direct Mount Chainring |
| Mount Interface | SRAM 8-Bolt Direct Mount |
| Compatible Cranks | SRAM Force / RED |
| Material | 7075-T651 Aluminum Alloy |
| Color | Black |
| Finish | Anodized |
| Chainline | 46 mm |
| Offset | 4.2 mm |
| Thickness | 8 mm |
| Hardness | HB150 |
| CNC Accuracy | 0.03 mm |
| Recommended Use | Road / Gravel |
| MTB Compatibility | Not Compatible |
| Package Includes | 1 × Chainring |
Compatibility
Bike Type Compatibility
This chainring is designed for:
- Road bikes
- Gravel bikes
It is not compatible with MTB use. Mountain bike drivetrains use a different offset and chainline, so this chainring is not recommended for mountain bikes.
Crank Compatibility
Compatible with:
- SRAM Force 8-bolt direct mount cranksets
- SRAM RED 8-bolt direct mount cranksets
- SRAM AXS / XPLR 8-bolt interface
Important: This chainring fits 8-bolt SRAM cranks only. It does not fit SRAM 3-bolt direct mount spindles or cranksets.
Chain Compatibility
Choose the correct chainring version according to your chain type.
| Chain Type | Recommended Version |
|---|---|
| MTB Chain 9 / 10 / 11 / 12-speed | Non-AXS Version |
| SRAM Road Chain 9 / 10 / 11-speed | Non-AXS Version |
| Shimano Road Chain 9 / 10 / 11 / 12-speed | Non-AXS Version |
| SRAM AXS Flattop Chain | AXS Version |
Version Selection Notice
- Choose the Non-AXS Version for standard chains, including MTB chains, SRAM road 9–11-speed chains, and Shimano road 9–12-speed chains.
- Choose the AXS Version if you are using a SRAM AXS Flattop chain.
Please confirm your chain type before placing your order.
Material & Manufacturing Advantages
High-Strength 7075-T651 Aluminum
This chainring is made from premium 7075-T651 aluminum alloy supplied by Aleris, a U.S. aluminum supplier serving major aerospace manufacturers including Airbus, Boeing, and Bombardier.
The material provides:
- High stiffness
- Excellent durability
- Strong wear resistance
- Reliable long-term performance
- Lightweight performance for road and gravel riding
Precision CNC Machining
Stone chainrings are manufactured on high-precision CNC equipment from Taiwan and Germany, with machining accuracy up to 0.03 mm.
This ensures:
- Accurate fitment
- Smooth chain engagement
- Consistent tooth profile
- Stable drivetrain performance
Package Includes
- 1 × Stone Chainring
