Honda CBX 650 Custom (1982-) vs Honda CRF 450X (2009-10) vs Honda SL 125 (1972-73)
Comparison technical specifications
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| Make: | Honda | Honda | Honda |
| Model: | CBX 650 Custom | CRF 450X | SL 125 |
| Years: | 1982- | 2009-10 | 1972-73 |
| Engine: | Four stroke, transverse four cylinders, DOHC, 4 valve per cylinder. | Four stroke, single cylinder, DOHC, 4 valves | Four stroke, single cylinder. OHC, 2 valve |
| Capacity: | 656 cc / 40. cu-in | 449 cc / 27.4 cu-in | 125 cc / 7.4 cu-in |
| Bore x Stroke: | 60 x 58 mm | 96 x 62mm | 56.0 x 49.5 mm |
| Cooling System: | Air cooled | Liquid cooled | Air cooled |
| Compression Ratio: | 9.5:1 | 12.0:1 | 9.5:1 |
| Induction: | 4x 26mm Keihin | Keihin 40mm flat-slide | Keihin Carburetor |
| Ignition: | CDI | CD with electronic advance and lighting coil | Points and Condensor |
| Starting: | Electric | Electric & kick | Kick |
| Max Power: | 75 hp / 54.7 kW @ 9500 rpm | 44.8 hp / 33 kW @ 7500 rpm | 12 hp / 8.8 kW @ 7900 rpm |
| Clutch: | Wet plate | Wet, multiple discs, cable operated | Wet plate |
| Transmission: | 6 Speed | 5 Speed | 5 Speed |
| Final Drive: | Shaft | #520 chain; 14T/40T | Chain |
| Front Suspension: | Showa air-spring, 39mm stanchion tube diameter, brake-actuated hydraulic anti-dive | Inverted fully adjustable 47mm Showa cartridge forks, 16-way rebound settings, 16-way compression | |
| Rear Suspension: | Dual shocks, 5-way adjustable spring preload, 4-way adjustable rebound damping | 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) | Dual shocks |
| Front Brakes: | 2x 276 mm discs | Single 240mm disc 2 piston caliper | Drum |
| Rear Brakes: | Drum | Single 240mm disc | Drum |
| Front Tyre: | 100/90-19 | 80/100-21 | 2.75-21 |
| Rear Tyre: | 130/90-16 | 110/100-18 | 3.25-18 |
| Fuel Capacity: | 12.9 Liters / 3.4 US gal | 7.2 Litres / 1.9 gal | 7.5 Litres / 1.9 gal |