S&M Drain Man Sprocket

The Drain Man is S&M's CNC machined sprocket, cut from 6061 aluminium and made in the USA. It runs 1/8 inch teeth, so it takes a standard BMX chain.

The centre bore is 15/16 inch (24mm), and 19mm and 22mm steel hat washers are included, so it fits 19mm, 22mm and 24mm spindles without hunting for extra parts.