STONE Round Narrow-Wide Chainring for White Industries Square Taper Cranks (40T–56T)
This round chainring is designed exclusively for White Industries square tapered cranks. Its narrow-wide tooth profile is built for 1x drivetrains, offering stronger chain retention, better self-cleaning in mud and dirt, and quieter running.
Key Specifications
- Material: Aerospace-grade high-stiffness 7075-T651 aluminum
- Color: Black or silver
- Tooth options: 40T–56T
- Speed compatibility: 9/10/11/12 speed
- Thickness: 4 mm
- Hardness: HB150
- Processing precision: 0.03 mm (high-precision CNC machining)
Compatibility
Please review the following fitment details before ordering:
| Item | Details |
|---|---|
| Compatible cranks | White Industries square tapered cranks only |
| Not compatible | Other crank brands; White Industries R30 (different interface shape) |
| Chain compatibility | 9/10/11/12 speed; SRAM AXS Flattop and T-Type 12s chains not supported by default |
| Intended use | Road and gravel bikes (chainline optimized accordingly); not suitable for MTB |
- The White Industries R30 crank cannot be installed, as its interface shape is different.
- By default, the chainring does not support SRAM AXS Flattop and T-Type 12s chains. If you need a customized AXS T-Type tooth profile, please send us a message.
- If you use a Shimano 12s chain, switch to a KMC, YBN, or SUMC 12s quick link — the original 12s chain is too narrow.
Tooth Size Reference
| Tooth Count | Max Diameter (mm) | Weight (g) |
|---|---|---|
| 40T | 169 | — |
| 42T | 178 | — |
| 44T | 186 | — |
| 46T | 194 | — |
| 48T | 202 | — |
| 50T | 210 | — |
| 52T | 219 | — |
| 54T | 226 | 142 |
| 56T | 235 | 151 |
Why Choose This Chainring
- Premium material: High-strength 7075-T651 aluminum delivers excellent stiffness and durability.
- Precision engineering: High-precision CNC machining with 0.03 mm working accuracy ensures a top-quality riding component.
- Advanced tooth design: Stone workshop’s new narrow-wide tooth profile resists chain drop, sheds mud and dirt, and reduces noise.
Package Contents
- 1 x bike chainring
