01. ENGINE & PERFORMANCE
REFINED POWER
The extensively updated 450 cc SOHC engine delivers exceptional performance throughout the rev range. The development focus was not simply on increasing peak power, but on making that performance more accessible and easier to control.
An updated cylinder head, revised camshaft timing, increased 14.0:1 compression ratio and extensively developed intake and exhaust systems provide strong low-rpm torque, smooth delivery and exceptional rideability
ENGINEERED FOR RIDEABILITY
Extensive revisions to the cylinder head and intake architecture enhance low-rpm performance while maintaining strong power at higher engine speeds. A reshaped camshaft, revised timing and updated combustion chamber work together to create a smooth, predictable power delivery.
The result is a more manageable engine character that allows riders to access the available performance efficiently, particularly through demanding sections and over long motos.
OPTIMISED EXHAUST
A completely new exhaust system has been developed to meet the latest 109 dB FIM noise limit without compromising performance or rideability. Three resonator chambers in the header help manage exhaust pressure waves, supporting a broader and more predictable torque curve with particular gains in the low-to-mid rpm range.
A newly developed silencer completes the system and contributes to consistent engine behaviour throughout the rev range
TOP-FEED ADVANTAGE
A redesigned airbox improves airflow and filtration while providing increased protection from dust, mud and water. The proven 44 mm Keihin throttle body gains a repositioned injector for improved fuel atomisation and throttle response.
By positioning the injector further upstream in the intake tract, fuel and air have more time to mix before entering the combustion chamber. The result is improved atomisation, enhanced combustion efficiency and more consistent performance throughout the rev range.
REFINED POWER
An updated cylinder head, revised camshaft timing, increased 14.0:1 compression ratio and extensively developed intake and exhaust systems provide strong low-rpm torque, smooth delivery and exceptional rideability
ENGINEERED FOR RIDEABILITY
The result is a more manageable engine character that allows riders to access the available performance efficiently, particularly through demanding sections and over long motos.
OPTIMISED EXHAUST
A newly developed silencer completes the system and contributes to consistent engine behaviour throughout the rev range
TOP-FEED ADVANTAGE
By positioning the injector further upstream in the intake tract, fuel and air have more time to mix before entering the combustion chamber. The result is improved atomisation, enhanced combustion efficiency and more consistent performance throughout the rev range.
