01. Faster and wiser
Engine
The FX 450 engine benefits from advanced engineering techniques to deliver maximum performance. Low in weight and weighing just 26.8 kilograms, the engine is designed to centralise mass for enhanced handling and significantly improved anti-squat behaviour from the chassis. Servicing of the engine is made easier compared to previous models thanks to the addition of service markers on the engine cases.
Cylinder head
The SOHC cylinder head is incredibly compact with the camshaft positioned as close to the centre of gravity as possible for unrivalled handling and agility. A durable, fine-punched cam chain runs on low-friction chain guides for optimal efficiency and reliability with a single oil spray jet ensuring effective cooling. The lightweight valves are actuated via a rocker arm and feature timing specifically designed to deliver precise levels of torque and throttle response.
Cylinder and piston
The lightweight aluminium cylinder is undoubtedly an engineering masterpiece and features a 95 mm bore with a 63.4 mm stroke. Inside, the CP bridged-box-type piston features anodised annular grooves, adding durability and longer service intervals at a weight of just 327 g. Delivering best-in-class performance, the compression ratio is 13.6:1 for incredible peak power while maintaining its crisp responsiveness.
Crankshaft
The crankshaft is specifically positioned to harness the rotating mass in the ideal centre of gravity resulting in a lightweight and agile handling feel. As such, the inertia produced by the crankshaft is carefully calculated to deliver optimal traction and rideability from the powerful 450 cc engine. A plain big end bearing comprising two force-fitted bearing shells ensure maximum reliability and durability, guaranteeing long service intervals of 90 hours.
Crankcases
Designed for optimised mass centralisation, the FX 450 crankcases arrange the shafts and engine internals in the perfect position to achieve the best possible handling. Manufactured using a high-pressure die-cast production process, the result is a thin, exceptionally strong wall thickness at the lowest possible weight.
DDS clutch
The FX 450 features a dampened diaphragm steel (DDS) clutch, which includes a single-diaphragm steel pressure plate instead of traditional coil springs. It integrates a damping system for better traction and durability. The clutch basket is a single-piece, CNC-machined steel component using thin steel liners, which ensures a compact overall engine design.
Gearbox
Produced by Pankl Racing Systems, the 5-speed gearbox is designed to be extremely light and durable with a revised transmission ratio of 29:72 offering smooth and precise shifting. Integrated on the shift drum, the Quickshifter can be activated via the Map Select Switch to further aid smooth upshifting.
Engine
Cylinder head
Cylinder and piston
Crankshaft
Crankcases
DDS clutch
Gearbox
