At Fun Bikes we stock a collection of engines perfect for mini pit bikes. From a semi-auto 90cc engine to a 4 valve 140cc engine with a brand new high performance cylinder head, we have everything to either repair or update your mini pit bike.
M2R RF160 Pit Bike Basic 160cc Engine 4 Speed manual shift. Race pattern gearbox N-1-2-3-4 Bore x Stroke : 60mm x 57mm Inlet/Exhaust valve : 24mm / 29mm Max power (std) 17 hp Big valve head. ...