Excellent Quality Surly Single-Speed Cassette Cog

This high quality singlespeed cassette style cog has awide base, 4.35mm, to prevent it from digging grooves into the freehub body and a tall tooth profile to thwart chain skip.

Material: Machined SCM415 CroMoly, Heat Treated
Spline:Shimano
Chain Compatiblity: 3/32