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2017 Honda CRF450RX Specifications

Model CRF450R CRF450RX
Engine Type 449.7cc liquid-cooled single-cylinder four-stroke
Bore x Stroke 96.0mm x 62.1mm
Compression Ratio 13.5:1
Induction Programmed fuel-injection system (PGM-FI); 46mm throttle bore
Ignition Full transistorized ignition
Transmission Constant-mesh 5-speed return
Final Drive 520 chain; 13T/49T  520 chain; 13T/50T 
Valve Train Unicam® OHC, four-valve; 10.0mm intake, steel; 8.8mm exhaust, steel
Front 49mm fully adjustable leading-axle inverted telescopic Showa coil-spring fork; 12.0 in. travel
Rear Pro-Link swingarm system; fully adjustable Showa single shock; 12.4 in. travel

Pro-Link system; fully adjustable Showa single shock; 12.3 in. travel

Front Single 260mm hydraulic disc
Rear Single 240mm hydraulic disc
Front Dunlop Geomax MX3S 80/100-21 55M with tube Dunlop Geomax AT81 90/90-21 with tube
Rear Dunlop Geomax MX3S 120/80-19 55M with tube Dunlop Geomax AT81 120/90-18 with tube
Rake (Caster Angle) 27°22’ 
Trail  116.0mm (4.6 in.) 
Seat Height 37.8 in.
Ground Clearance  12.9 in.
Wheelbase 58.3 in. 58.1 in.
Fuel Capacity 1.6 gal. 2.2 gal.
Color Red
Curb Weight* 243 lbs.  261 lbs. 

*Includes all standard equipment, required fluids and full tank of fuel—ready to ride Meets current CARB and EPA off-road emissions standards

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Distribution channels: Automotive