
With the CRF450R MX machine as a base the CRF450RX already has an advantage and, along with its enduro-specific equipment – larger fuel tank, 18-inch rear wheel and sidestand. A completely new frame saves weight and features factory-rider rigidity balance with sharper steering, extra ground clearance and RX-specific suspension settings. The seat unit is smaller (and lower at the back) and new plastics are slimmer, lighter and easier to move around. For stronger mid-range power and smooth throttle response, the engine has a redesigned intake, cylinder head and exhaust while a revised decompression system minimises stalling. The new hydraulic clutch is tougher, with lighter lever load. HRC Launch Control owns the first 100 metres and HSTC manages rear wheel traction over a lap.
Engine
Engine Type
Liquid-cooled 4-stroke single cylinder uni-cam
Engine Displacement
449.7cc
Bore and Stroke
96.0mm x 62.1mm
Carburation
CDI Electronic Fuel injection
Compression Ratio
13.5 : 1
Starter
Electric
Oil Capacity
1.25 Litres
Frame
Frame Type
Aluminium twin tube
Transmission
Transmission
Constant mesh
Final Drive
Chain
Transmission Type
Constant mesh
Dimensions
Wheelbase
1,477mm
Ground Clearance
336mm
Seat Height
965mm
Fuel Capacity
8 litres
Tyres Front
Dunlop Geomax AT81F
Tyres Rear
Dunlop Geomax AT81
Brakes Front
Single 260mm disk
Brakes Rear
Single 240mm disk
Kerb Weight
113.4kg