This STONE direct mount chainring is designed for SRAM 3-bolt interface cranksets.
Made from high-strength 7075-T651 aluminum alloy, it offers excellent stiffness, durability, and lightweight performance.
The narrow-wide tooth profile helps improve chain retention, reduce chain drop, enhance mud clearance, and lower drivetrain noise.
| Item | Details |
|---|---|
| Brand | STONE |
| Material | Aluminum 7075-T651 |
| Color | Black / Silver, anodized |
| Tooth Options | 26T–48T |
| Speed Compatibility | 9 / 10 / 11 / 12-speed chains |
| Offset | 0mm |
| Chainline | 49mm |
| Thickness | 4mm |
| Hardness | HB150 |
| Processing Precision | 0.03mm |
| Tooth Profile | Narrow Wide |
| Recommended Use | MTB / Road / Gravel depending on crank compatibility |
Please check your crank interface carefully before purchasing.
This chainring fits SRAM 3-bolt direct mount cranksets, including:
If your crank uses the same SRAM 3-bolt direct mount interface, this chainring can be installed.
This chainring works with most standard 9 / 10 / 11 / 12-speed chains.
However, please note:
Please confirm your chain type before placing an order.
| Size | Diameter | Weight |
|---|---|---|
| 26T | 113.3mm | 47g |
| 28T | 121.5mm | 51g |
| 30T | 129.5mm | 57g |
| 32T | 137.5mm | 61g |
| 34T | 146mm | 66g |
| 36T | 154mm | 72g |
| 38T | 162mm | 82g |
| 40T | 170mm | 90g |
| 42T | 178mm | 100g |
| 44T | 186mm | 117g |
| 46T | 194mm | 124g |
| 48T | 202mm | 131g |
Actual weight may vary slightly due to production tolerance.
Made from high-strength 7075-T651 aluminum, supplied by Aleris, a USA company known for supplying aluminum materials to aerospace manufacturers such as Airbus, Boeing, and Bombardier.
This material provides excellent strength, stiffness, durability, and long service life.
Produced with high-precision CNC machining.
The processing accuracy reaches 0.03mm, helping ensure accurate fitment, smooth drivetrain performance, and reliable riding quality.

















