Shopping from link below:
Size: 64 BCD oval
Ovality: 8.3%
Tooth: 24-28T
Thickness: 4MM
Speed: 9/10/11 speed,only for 1x single speed
Color: black
Surface treatment: Anodize, high speed CNC
Fit for most crank.like Shimano XTM780 M785
Weight: 22T 23g, 24T 29g, 26T 32g, 28T 40g
Material Hardness: HB150
Package Contents:
1 x chainring, 4 bolts
High CNC process precision 0.03mm, CNC machine from Germany and Taiwan
Material: High strength Aluminum 7075-T651, supplied by USA company Aleris who is supplier to aircraft make Airbus, Boeing and Bombardier.
