Stone Chainring 30mm for Rotor REX1 REX2 3df 3df+ Oval
- Material: Aerospace Aluminum 7075T651
- Offset: 5 mm
- Color: black, anodized
- Speed: 9/10/11/12 Speed
- Thickness: 9MM
- Hardness: HB150
- Fit for: Rotor Crank REX1.1. REX2.1.(3D+XC2 3DF XC2)(Not fit for R-Hawk & R-Raptor)