Material: High strength Aluminum 7075-T651.
Material Hardness: HB150
Color: black
Weight:about 31g
Fit Crank:for Sram MTB direct mount ,DUB model 3 bolts mounting crank.
fit for BMX,climbing,stunt bikes which require large transmission ratios and high bursts.
Offset:4mm inner offset
Surface treatment: Anodize, high speed CNC
Package content:
1*chainring