The STONE 146BCD narrow-wide chainring is designed for Shimano XTR M960 4-arm cranksets.
It is made for 1x drivetrain conversion and features a narrow-wide tooth profile to improve chain retention and reduce the risk of chain drop.
Made from 7075-T651 high-strength aluminum alloy, this chainring is CNC-machined with high precision and anodized for long-lasting durability.
Product Specifications
| Item | Specification |
|---|---|
| Product Name | STONE 146BCD Narrow Wide Chainring |
| BCD | 146BCD |
| Arm Design | 4 Arms |
| Compatible Crankset | for Shimano XTR M960 |
| Tooth Profile | Narrow Wide |
| Drivetrain Type | 1x Only |
| Teeth Options | 44T–50T |
| Material | 7075-T651 High-Strength Aluminum Alloy |
| Material Hardness | HB150 |
| Thickness | 4 mm |
| CNC Precision | 0.03 mm |
| Surface Treatment | Anodized, High-Speed CNC Machined |
| Weight | Approx. 74–110 g |
Important Compatibility Notice
This chainring is designed for 1x drivetrain systems only.
It is not compatible with 2x drivetrains and does not support front shifting.
Compatible Crankset
This chainring is designed to fit:
- Only for Shimano XTR M960 crankset
Please confirm your crankset model and BCD before placing an order.
Chain Compatibility
| Chain Type | Compatibility |
|---|---|
| MTB 8 / 9 / 10 / 11 / 12-speed chains | Compatible |
| Road 8 / 9 / 10 / 11-speed chains | Compatible |
| Shimano 12-speed road chains | Compatible with quick link replacement |
| SRAM AXS 12-speed Flattop chains | Not compatible |
SRAM AXS Flattop Chain Notice
The standard version does not support SRAM AXS 12-speed Flattop chains.
If you need compatibility with SRAM AXS 12-speed Flattop chains, please contact us before ordering.
Material & Manufacturing Advantages
1. Premium 7075-T651 Aluminum Alloy
This chainring is made from 7075-T651 high-strength aluminum alloy, offering excellent stiffness, strength, and durability.
The aluminum material is supplied by Aleris, a USA aluminum supplier serving aerospace manufacturers such as Airbus, Boeing, and Bombardier.
2. High-Precision CNC Machining
Each chainring is produced by high-speed CNC machining with a processing precision of 0.03 mm.
This helps ensure:
- Accurate tooth profile
- Smooth chain engagement
- Stable drivetrain performance
- Reliable power transfer
3. Narrow-Wide Tooth Design
The narrow-wide tooth profile is designed for 1x drivetrains.
It helps improve chain retention and reduces the chance of chain drop during riding.
Package Includes
- 1 × Chainring
- 4pcs bolts
Production Time Notice
Most STONE chainrings are produced after the order is placed.
Please allow 3–5 days preparation time before shipment.
Thank you for your understanding.
