Stone Round Narrow-Wide Chainring for Shimano Direct Mount MTB Cranks (M6100/M7100/M8100/M9100, MT900, M9200/M9220/M9250), 36T–48T, 0mm Offset
Designed for Shimano direct mount MTB cranksets, this round narrow-wide chainring combines stiffness, durability, and reliable chain retention. Its optimized wolf-tooth narrow-wide profile helps prevent chain drop, sheds mud more effectively, and reduces chain noise for a smoother ride.
The 0mm offset design also improves frame clearance when larger tooth sizes are used.
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
This chainring fits Shimano direct mount MTB cranksets, including:
- Shimano Deore M6100 series
- Shimano SLX M7100 / M7120 / M7130
- Shimano XT M8100 / M8120 / M8130
- Shimano XTR M9100 / M9120 / M9130
- Shimano MT-900
- 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.
A chain quick link is not included and must be purchased separately. Buy here if you want a 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: A chain quick link is not included and must be purchased separately.
