The
crankset (in the US) or
chainset (in the UK), is the component of a
bicycle drivetrain that converts the
reciprocating motion of the rider's
legs into rotational motion used to drive the
chain or
belt, which in turn drives the rear
wheel. It consists of one or more
sprockets, also called
chainrings or
chainwheels attached to the
cranks,
arms, or
crankarms to which the pedals attach. It is connected to the rider by the
pedals, to the bicycle frame by the
bottom bracket, and to the rear sprocket,
cassette or
freewheel via the chain.
