Crotch rocket is a slightly derogatory term for a sports bike. The name is derived from the way the rider sits on the bike and from the speed and acceleration these bikes are capable. A sports bike's foot pegs and shifter are located further back than conventional or a 'cruiser' motorcycles; this puts the rider in a position that is more streamlined and aerodynamic and places the rider's crotch in very close contact with the seat.

These machines are also called donor cycles (also 'murder cycles') by ER trauma surgeons, as they are typically ridden by young men in excellent physical condition, whose organs are highly suitable for transplantation should they die in an accident involving one.

See also

• Rice rocket

Motorcycles