Stone 144BCD Chainring Narrow Wide
- Material: High strength Aluminum 7075-T651
- Material Hardness: HB150
- CNC process precision: 0.03mm
- Color: black
- Size: 144 BCD
- Thickness: 4MM
- Speed: 9/10/11/12 speed
- Fit for: 144 BCD Crank(for track bike and fixed gear)
- Surface treatment: Anodize, high speed CNC