STONE Round Oval Direct Mount Narrow-Wide Chainring for Rotor 30mm Spindle REX1.1 / REX2.1 / 3D+ XC2 / 3DF XC2 | 5mm Offset | 9–12 Speed
The STONE narrow-wide chainring is designed for compatible Rotor cranksets, offering stable chain retention, smooth pedaling performance, and reliable durability for MTB, XC, and trail riding.
Made from high-strength 7075-T651 aerospace-grade aluminum, this chainring delivers excellent stiffness and long-lasting endurance. The new STONE wolf-tooth narrow-wide profile helps reduce chain drops, improves mud-shedding performance, and lowers drivetrain noise for a cleaner and smoother ride.
Specifications
| Item | Details |
|---|---|
| Material | Aerospace Aluminum 7075-T651 |
| Color | Black, Anodized |
| Offset | 5 mm |
| Speed Compatibility | 9 / 10 / 11 / 12 Speed(Not for AXS flattop chain) |
| Thickness | 9 mm |
| Hardness | HB150 |
| Machining | High-Precision CNC Machining |
| Processing Accuracy | 0.03 mm |
Compatibility
This chainring is compatible with the following Rotor crank models:
- For Rotor 30mm spindle REX1.1
- For Rotor 30mm spindle REX2.1
- For Rotor 30mm spindle 3D+ XC2
- For Rotor 30mm spindle 3DF XC2
Not Compatible With
- Not for Rotor R-Hawk
- Not for Rotor R-Raptor
Please check your crank model carefully before placing an order.
Package Includes
- 1 × Bike Chainring
Key Features
- STONE wolf-tooth narrow-wide design for improved chain retention
- Helps prevent chain drops on rough terrain
- Enhanced self-cleaning performance in muddy or dirty conditions
- Reduced drivetrain noise for smoother riding
- 5 mm offset design for compatible Rotor cranksets
- CNC-machined from high-strength 7075-T651 aluminum
- Black anodized finish for better corrosion resistance and a premium appearance
Advantages
1. Aerospace-Grade 7075-T651 Aluminum
Made from high-strength 7075-T651 aerospace aluminum, providing excellent stiffness, strength, and endurance for demanding riding conditions.
2. High-Precision CNC Processing
Manufactured with advanced CNC machining and a processing accuracy of 0.03 mm, ensuring precise fitment, smooth chain engagement, and reliable riding performance.
Production Time Notice
Most STONE chainrings are produced to order. Please allow 3–5 days for production preparation before shipment. Thank you for your understanding.
