Designed for Shimano direct mount MTB cranksets, this round narrow-wide chainring provides excellent stiffness, durability, and chain retention. The optimized wolf-tooth narrow-wide profile helps prevent chain drop, improves mud-shedding performance, and reduces chain noise for a smoother riding experience.
With a 0mm offset design, this chainring helps improve frame clearance when using larger tooth sizes.
Specifications
| Item | Details |
|---|---|
| Brand | Stone |
| Material | 7075-T651 aerospace-grade aluminum alloy |
| Material Supplier | Aleris USA |
| Color | Black / Silver |
| Shape | Round |
| Speed Compatibility | 9 / 10 / 11 / 12-speed |
| Thickness | 5 mm |
| Hardness | HB150 |
| Chainline | 52 mm |
| Offset | 0 mm |
| Machining | CNC machined |
| Processing Accuracy | 0.03 mm |
| Application | MTB |
Crank Compatibility
Compatible with Shimano direct mount MTB cranksets, including:
- For Shimano Deore M6100 Series
- For Shimano SLX M7100 / M7120 / M7130
- For Shimano XT M8100 / M8120 / M8130
- For Shimano XTR M9100 / M9120 / M9130
- For Shimano MT-900
- For Shimano M9200 / M9220/ M9250
Chain Compatibility
This chainring is compatible with:
- Shimano MTB 12-speed chains
- SRAM MTB 12-speed chains
- Most 9 / 10 / 11 / 12-speed MTB chains
Important Notice for Shimano 12-Speed Chains
When using an original Shimano 12-speed chain, the original Shimano quick link must be replaced with a compatible quick link from another brand, such as KMC or YBN.
The original Shimano 12-speed quick link may be too narrow and can cause riding or shifting problems.
Chain quick link is not included and must be purchased separately.
Buy here
if you want 12-speed quick link
Installation Notes
- This chainring has only one correct installation angle. Please align it properly during installation.
- The final chainline is determined by the crankset specification. Shimano adjusts chainline mainly through different spindle lengths.
- Suitable OLD / rear hub spacing depends on the crank model, including 142 mm, 148 mm, and 157 mm. Please check Shimano’s official crank specifications before purchase.
- The 0mm offset design can help reduce frame interference when using larger chainring sizes.
Size, Diameter & Weight
| Teeth | Max Diameter | Weight — Hollow | Weight — Aero |
|---|---|---|---|
| 36T | 154 mm | 80 g | 90 g |
| 38T | 162 mm | 86 g | 98 g |
| 40T | 170 mm | 98 g | 102 g |
| 42T | 170 mm | 106 g | 111 g |
| 44T | 178 mm | 108 g | 121 g |
| 46T | 186 mm | 119 g | 129 g |
| 48T | 194 mm | 130 g | 141 g |
Key Features
- CNC-machined from high-strength 7075-T651 aluminum alloy
- Aerospace-grade material supplied by Aleris USA
- Round direct mount design for Shimano MTB cranks
- 0mm offset for improved frame clearance with larger chainrings
- Wolf-tooth narrow-wide profile for better chain retention
- Helps reduce chain drop on rough terrain
- Improved self-cleaning performance in muddy conditions
- Lower chain noise for smoother riding
- High-precision CNC machining with 0.03 mm accuracy
- Available in Hollow and Aero versions
Package Includes
- 1 × Bike Chainring
Note: Chain quick link is not included and must be purchased separately.
