Honda XR 250RJ (1987) vs Honda CBR 500R (2015) vs Honda CBX 750C Horizon (1983-84)
Comparison technical specifications
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| Make: | Honda | Honda | Honda |
| Model: | XR 250RJ | CBR 500R | CBX 750C Horizon |
| Years: | 1987 | 2015 | 1983-84 |
| Engine: | Four-stroke, single cylinder SOHC, 4 valve, RFVC (Radial Four Valve Combustion Chamber) | Four stroke, parallel-twin, DOHC; 4 valves per cylinder | Four stroke, transverse four cylinders, DOHC, 4 valve per cylinder. |
| Capacity: | 249 cc / 15.1 cu-in | 471 cc / 28.7 cu-in | 747 cc / 45.0 cu-in |
| Bore x Stroke: | 73 x 59.5 mm | 67.0 x 66.8 mm | 67 x 53 mm |
| Cooling System: | Air cooled | Liquid cooled | Air cooled |
| Compression Ratio: | 10.2:1 | 10.7:1 | 9.3:1 |
| Induction: | 30 mm piston valve carburator | PGM-FI with 34mm throttle bodies | 4 x 34mm CV Type carburetors |
| Ignition: | CDI | Computer-controlled digital transistorized with electronic advance | Full transistor |
| Starting: | Kick | Electric | Electric |
| Max Power: | 24.2 hp / 18 kW @ 8000 rpm | 46.9 hp / 35 kW @ 8500 rpm | 77 hp / @ 9500 rpm |
| Max Torque: | 2.27 kg-M / 22.26 Nm @ 7000 rpm | 43 Nm / 31.7 lb-ft @ 7000 rpm | 6.5 kgf-m @ 7000 rpm |
| Transmission: | 6 Speed | 6 Speed | 6 Speed |
| Final Drive: | Chain | O-ring-sealed chain | Chain |
| Front Suspension: | 41 mm Air assisted telescopic forks | 41mm Telescopic fork | 39mm Air assisted forks, rebound adjustable |
| Front Wheel Travel: | 280 mm / 11.0 in | 122 mm / 4.8 in | 150 mm / 5.9 in |
| Rear Suspension: | Remote reservoir-equipped Pro-Link, adjustable compression and rebound | Pro-Link single shock with nine-position spring preload adjustability; | Pro-link, 3-way rebound damping adjustable |
| Rear Wheel Travel: | 280 mm / 11.0 in | 105 mm / 4.1 in | 115 mm / 4.5 in |
| Front Brakes: | Single 240mm disc 2 piston calipers | Single 320mm wave disc 2 piston calipers | 2x 280mm discs 2 piston calipers |
| Rear Brakes: | Drum | Single 240mm wave disc 1 piston calipers | Single 280mm disc 2 piston caliper |
| Front Tyre: | 3.00-21 4 PR | 120/70-17 | 110/90-16 |
| Rear Tyre: | 4.00-18 4 PR | 160/60-17 | 130/80-18 |
| Seat Height: | 925 mm / 36.4 in | 784 mm / 30.9 in | 780 mm / 30.7 in |
| Fuel Capacity: | 10.5 Litres / 2.77 US gal | 15.5 Liters / 4.1 gal | 22 liters / 5.8 US gal |