Track Sprocket 1/2"X1/8" Fixed Gear Single Speed Cog Threaded Lock Ring 13T/14T/15T/16T/17T/18T

Discription:

Material: High Tensile 45# Steel, chrome -plated
Gear teeth: 13T  14T  15T  16T  17T  18T   (You can choose when ordering)
One set: 1 teeth wheel+ 1 fixed ring
Fits 1/2" x 1/8" chain.

Packing include: One set (one freewheel and one fixed ring )