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Upgrade your drivetrain with the STONE 3-Bolt Oval Direct Mount Chainring, engineered for improved chain retention, smoother pedaling efficiency, and reliable performance on demanding rides.
Made from premium 7075-T651 aluminum alloy, this chainring offers an excellent balance of strength, stiffness, and lightweight performance. The precision CNC-machined narrow-wide tooth profile helps reduce chain drop, improve mud-shedding capability, and deliver quieter operation on the trail.
| Item | Details |
|---|---|
| Brand / Model | STONE Oval BB30 0mm Offset Chainring |
| Material | 7075-T651 Aluminum Alloy |
| Offset | 0mm |
| Tooth Profile | Narrow-Wide |
| Speed Compatibility | Standard 9/10/11/12 Speed(Not for 12-speed AXS flattop chain) |
| Thickness | 4mm |
| Hardness | HB150 |
| Machining Precision | 0.03mm |
| Color Options | Black , Anodized |
| Available Sizes | 30T / 32T / 34T / 36T / 38T / 40T / 42T |
Compatible with SRAM direct mount cranksets including:
Important Note:
This chainring is designed for SRAM BB30 short spindle cranks only. Please confirm your crank model and spindle type before purchase.
| Size | Approx. Weight |
|---|---|
| 30T | 62g |
| 32T | 67g |
| 34T | 70g |
| 36T | 78g |
| 38T | 90g |





