At Fun Bikes we stock a collection of engines perfect for mini dirt bikes. From a basic 49cc engine to a race stage 3 engine with a brand new high performance cylinder head, we have everything to either repair or update your mini dirt bike.
FunBikes Cobra 4S Dirt Bike Engine Complete, single cyclinder, four stroke 50cc engine to fit the Cobra 4S dirt bike post 2014. Includes starter motor, carb etc Part number 2.