honda CRF450RX


The 17YM CRF450R has been built from the wheels up based on direct input from AMA and European MX teams, and packs a power to weight ratio 11% better than the outgoing design. The CRF450RX is identical in almost every area, but has some crucial changes to create an uncompromising enduro focus.

Both front and rear suspension are less firm, with lighter compression damping and a lower spring rate for the shock. It uses an enduro-standard 18in rear wheel, and sidestand and 8.5L fuel tank are also added for practicality and extended range.

The CRF450RX’s PGM-FI ignition timing map produces softer power and torque delivery than the CRF450R to aid traction feel in awkward conditions. As on the CRF450R, the EMSB (Engine Mode Select Button) provides the rider with 3 distinct choices: Mode 1 equals all-round smooth performance, Mode 2 gives the most easy-to-manage throttle feel, and Mode 3 delivers the power in the most aggressive, responsive way. Electric start is fitted as standard.

Engine Type

Liquid-cooled 4-stroke single cylinder uni-cam

Displacement CC


Bore X Stroke

96.0mm x 62.1mm

Compression Ratio


Fuel Tank Capacity

8.5 L



Transmission Type

Constant mesh

Dimensions LxWxH

2175 mm x 827 mm x 1274 mm


1477 mm

Seat Height

959 mm

Ground Clearance

328 mm

Kerb Weight

118 kg

Tyre Size Front

90/90-21 Dunlop GeoMax AT81

Tyre Size Rear

120/90-18 Dunlop GeoMax AT81

Brakes Type Front

260mm hydraulic wave disc

Brakes Type Rear

240mm hydraulic wave disc