2017 Honda CRF450RX Specifications
| 2017 HONDA CRF450R / 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 | |
| SUSPENSION | ||
| 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 |
| BRAKES | ||
| Front | Single 260mm hydraulic disc | |
| Rear | Single 240mm hydraulic disc | |
| TIRES | ||
| 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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