Honda CRF 250M (2015-16) vs Honda CRF 250X (2007-08) vs Honda CRF 450X (2007-08) vs Honda CX 500 Custom (1979-80)
Comparison technical specifications
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| Make: | Honda | Honda | Honda | Honda |
| Model: | CRF 250M | CRF 250X | CRF 450X | CX 500 Custom |
| Years: | 2015-16 | 2007-08 | 2007-08 | 1979-80 |
| Engine: | Four stroke single cylinder, DOHC, 4 valves | Four stroke single cylinder, 4 valves | Four stroke, single cylinder, DOHC, 4 valves | Four stroke, longitudinal 800 V-twin cylinder, camshaft nestles at the base of the V between the cylinders. ,OHV, 4 valves per cylinder operated by pushrods |
| Capacity: | 249 cc / 15.28 cu-in | 249 cc / 15.2 cu-in | 449 cc / 27.4 cu-in | 497 cc / 30.3 cu-in |
| Bore x Stroke: | 76 ×55 mm | 78 x 52.2mm | 96 x 62mm | 78 x 52 mm |
| Compression Ratio: | 10.7:1 | 12.9:1 | 12.0:1 | 10.0:1 |
| Induction: | Keihin 37mm flat-slide with throttle position sensor (TPS) | Keihin 37mm flat-slide with throttle position sensor (TPS) | Keihin 40mm flat-slide | 2x 34mm Keihin carbs. |
| Ignition: | Full-transistor battery ignition | CD with electronic advance and lighting coil | CD with electronic advance and lighting coil | CDI |
| Starting: | Electric | Electric & kick | Electric & kick | Electric |
| Max Power: | 17 kW / 23 hp @ 8500 rpm | 28.5 hp / 21 kW @ 9000 rpm | 44.8 hp / 33 kW @ 7500 rpm | 50 hp / 37.2 kW @ 9000 rpm |
| Max Torque: | 22 Nm / 2.24 kg-m @ 7000 rpm | 24.2 Nm / 2.47 kg-m @ 8000 rpm | 43 Nm / 4.38 kg-m @ 7000 rpm | 46 Nm / 33.9 lb-ft @ 7000 rpm |
| Clutch: | Wet multiplate with coil springs | Cable-operated multiplate wet clutch. | Wet, multiple discs, cable operated | Wet, multi-plate, 5-speed |
| Transmission: | 6 Speed | 5 Speed | 5 Speed | 5 Speed |
| Final Drive: | #520 chain; 14T/40T | #520 T-ring-sealed chain; 14T/53T | #520 chain; 14T/40T | Shaft |
| Front Suspension: | Telescopic Inverted | 47mm inverted Showa cartridge fork with 16-position rebound and 16-position compression damping adjustability | Inverted fully adjustable 47mm Showa cartridge forks, 16-way rebound settings, 16-way compression | 33mm Showa telehydraulic fork |
| Rear Suspension: | Swing arm Pro-Link suspension system | Pro-Link Showa single shock with spring preload, 17-position rebound damping adjustability, and compression damping adjustment separated into low-speed (13 positions) and high-speed (3.5 turns) | Pro Link Showa single shock with 312mm of travel 17-way rebound settings, 13 low speed compression settings and 3.5 turns of high speed compression adjustment) | Swinging arm fork with adjustable shocks absorbers |
| Front Brakes: | Single disc | Single 240mm disc 2 piston caliper | Single 240mm disc 2 piston caliper | 2x 275mm discs |
| Rear Brakes: | Single disc | Single 240mm disc 2 piston caliper | Single 240mm disc | 160mm Drum |
| Front Tyre: | 3.00-17 | 80/100-21 | 80/100-21 | 3.50-19 |
| Rear Tyre: | 120/80-17 | 110/100-18 | 110/100-18 | 130/90-16 |
| Fuel Capacity: | 7.7 Litres / 2.0 gal | 8.6 Litres / 2.27 gal | 7.2 Litres / 1.9 gal | 12.5 Litres / 3.3 US gal |