STONE Narrow-Wide Direct Mount Chainring for Shimano 12-Speed MTB Cranks (M9100/M8100/M7100/M6100/MT900), 26T–48T
The STONE direct mount narrow-wide chainring is built for modern Shimano MTB cranksets and 1x drivetrains, delivering dependable chain retention and consistent performance on the trail.
Machined from aerospace-grade 7075-T651 aluminum alloy sourced from Aleris USA, the chainring pairs high stiffness with long-lasting durability for consistent riding performance.
Product Specifications
| Item | Specification |
|---|---|
| Product Name | STONE Direct Mount Narrow Wide Chainring |
| Material | Aerospace Aluminum 7075-T651 from Aleris USA |
| Surface Finish | Anodized |
| Standard Colors | Black, Silver |
| Thickness | 7 mm |
| Hardness | HB150 |
| Offset | 3 mm |
| Chainline | 52 mm |
| Speed Compatibility | 9 / 10 / 11 / 12 Speed |
| Chain Compatibility | 9–12 Speed Chains |
| Tooth Profile | Narrow Wide |
| Drivetrain Type | 1x MTB Drivetrain |
Key Features
- Designed for Shimano Direct Mount MTB cranksets
- 3 mm offset for a 52 mm chainline
- Compatible with 9 / 10 / 11 / 12-speed chains
- Made from aerospace aluminum 7075-T651
- Precision CNC-machined with 0.03 mm accuracy
- Wolf-tooth narrow-wide tooth profile
- Improved chain retention and anti-chain-drop performance
- Better mud clearance and self-cleaning ability
- Reduced drivetrain noise
- Black and silver anodized colors available
The hollowed style is also available in multiple custom colors: Rose Pink, Red, Purple, Golden, Ocean Blue, Orange Copper, Gemstone Blue, Bright Green, Bright Golden, Bright Blue, and Apple Green.
Compatibility
This chainring fits the following Shimano Direct Mount cranksets:
| Brand | Compatible Cranksets |
|---|---|
| Shimano | XTR M9100, XT M8100, SLX M7100, Deore M6100, MT-900, M9200, M9220 |
Not compatible with: SRAM T-type drivetrains and SRAM AXS flattop chains.
Please confirm your crank interface before ordering.
Shimano 12-Speed Quick Link Notice
If you are using a Shimano 12-speed chain, please note that the original Shimano 12-speed quick link may be too narrow for this chainring.
We recommend replacing the original Shimano 12-speed quick link with another compatible 12-speed quick link, such as:
- KMC
- YBN
- SUMC
- Other compatible 12-speed quick links
This helps ensure smoother installation and better chain compatibility.
Size, Diameter & Weight — Aero Round
| Teeth | Diameter | Weight |
|---|---|---|
| 26T | 113.3 mm | 53.5 g |
| 28T | 121.5 mm | 60.5 g |
| 30T | 129.5 mm | 67.5 g |
| 32T | 137.5 mm | 76 g |
| 34T | 146 mm | 84 g |
| 36T | 154 mm | 93 g |
| 38T | 162 mm | 100 g |
| 40T | 169 mm | 107 g |
| 42T | 178 mm | 114.5 g |
| 44T | 186 mm | 124 g |
| 46T | 194 mm | 135 g |
| 48T | 202 mm | 141.5 g |
Weight may vary slightly due to manufacturing tolerance.
Package Includes
- 1 × Bike Chainring
