DJC 144BCD Round Chainring Fixed Gear Fixie Track Bike 47T 49 51 53 55 57 59 61T Chainwheel 144 Bcd Tooth 1/2*1/8

it is not for 7-12 speed bike. it is for single speed bike only.
Material: Aluminum 7075-T651
Color: black, anodized
Size: 144BCD

Tooth: 47/49/51/53/55/57/59/61T
Chain compatible:only for 1/2*1/8 chain
Fit for : Fixed Gear/Track Bike(Single Speed Bike)
it is not for 7-12 speed bike. it is for single speed bike only.
it is not for 7-12 speed bike. it is for single speed bike only.
Thickness:4MM

Package Contents:
1 x chainring