The Husqvarna TE449.3cc SOHC engine of the FE 450 has a 95mm bore and a 63.4mm stroke and has been developed specifically for Enduro riding in extreme conditions. The cylinder head is characterised by a single overhead cam that actuates two lightweight titanium intake valves and two steel exhaust valves. The König bridge-box-type piston is closely related to the FC 450’s piston in order to lower oil consumption and optimise performance.
