Honda VFR 750F-RJ (1994) vs Velocette Viper (1955-68)
Comparison technical specifications
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Make: | Honda | Velocette |
Model: | VFR 750F-RJ | Viper |
Years: | 1994 | 1955-68 |
Engine: | Four stroke, 90°V-four cylinder, DOHC, 4 valve per cylinder | Four stroke, single cylinder |
Capacity: | 748 cc / 45.6 cub in | 349 cc / 30.5 cub in |
Bore x Stroke: | 70 x 48.6 mm | 72 x 86 mm |
Cooling System: | Liquid cooled | Air cooled |
Compression Ratio: | 11.0:1 | 8.0:1 |
Lubrication: | Wet sump | Wet sump |
Ignition: | Digitalized full transistor ignition | Belt driven dynamo, after 1962: Lucas system |
Spark Plug: | NGK CR8EH9 or ND U24FER9 | KLG FE100 / Champion N3 / NGK B8ES, Lodge 3HLN |
Starting: | Electric | Kick start |
Max Power: | 76.6 kW / 105 hp @ 10000 rpm | 25 kW / 28 hp @ 7000 rpm |
Clutch: | Wet, multiple discs, cable operated | Dry, three-plate |
Transmission: | 6 Speed | 4 Speed constant mesh, close ratio |
Final Drive: | Chain | Chain |
Front Suspension: | 41mm Telescopic forks, no external adjustment | Telescopic fork with hydraulic compression and rebound damping |
Rear Suspension: | Pro-link single sided swing arm, adjustable preload | Woodhead-Monroe springs with hydraulic damping, later Armstrong and Girling, adjustable |
Front Brakes: | 2x 296 mm discs, 2 piston calipers | 7.5 x 1.5 in., drum |
Rear Brakes: | Single 256 mm disc, 2 piston caliper | 7 x 1 in., drum |
Front Tyre: | 120/70 VR17 | 3.25 x 19 in |
Rear Tyre: | 170/60 VR17 | 3.25 x 19 in |
Rake: | 26° | 27° |
Dry Weight: | 209 kg / 461 lbs | 165 kg / 364 lbs |
Fuel Capacity: | 21 Litres / 5.5 gal | 13.6 L / 3.6 US gal |
Top Speed: | 232.7 km/h / 144.6 mph | 91 mph |