Honda CRF450RX 2020 User Manual

The Importance of Maintenance
22 Servicing Your Honda
The Importance of Maintenance
Keeping your CRF well-maintained is absolutely
essential to your safety. It’s also a good way to get
maximum performance during each race
(CRF450RX)/moto (CRF450R/RWE).
Careful pre-ride inspections and good maintenance
are especially important because your CRF is
designed to be ridden in off-road competition.
Remember, proper maintenance is your
responsibility. Be sure to inspect your CRF before
each ride and follow the Maintenance Schedule in
this section.
WARNING
Improperly maintaining this motorcycle or
failing to correct a problem before you ride
can cause a crash in which you can be
seriously hurt or killed.
Always follow the inspection and
maintenance recommendations and
schedules in this owner’s manual.

Honda CRF450RX 2020 Specifications

General

Engine Type	449cc liquid-cooled single-cylinder four-stroke
Bore x Stroke	96.0mm x 62.1mm
Compression Ratio	13.5:1
Induction	Programmed Fuel Injection (PGM-FI), 46mm throttle body
Ignition	Full transistorized ignition
Transmission	5-speed
Final Drive	Chain
Front Brake	Single 260mm disc with twin-piston caliper
Rear Brake	Single 240mm disc
Front Tire	80/100-21
Rear Tire	120/80-18
Wheelbase	58.3 inches
Seat Height	37.8 inches
Ground Clearance	12.9 inches
Starter	Electric
Trail	4.6 inches
Front Suspension	49mm inverted fork with rebound and compression damping adjustability; 12.0 inches travel
Rear Suspension	12.4 inches of travel
Valve Train	Unicam, four-valve