New Removable 18 Tooth Single Speed BMX Freewheel 1.37 x 24TPI
For sale is a new 18 tooth single speed freewheel. It is threaded 1.37 x 24TPI which is the larger of the 2 BMX threaded freewheel sizes. This freewheel has a spline so it can be removed with a freewheel removal tool (not included).