Ariel VB 600 (1947-58) vs Aprilia Tuono 1000 R Factory (2007) vs Ariel KH 500 Fieldmaster (1948-57)
Comparison technical specifications
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| Make: | Ariel | Aprilia | Ariel |
| Model: | VB 600 | Tuono 1000 R Factory | KH 500 Fieldmaster |
| Years: | 1947-58 | 2007 | 1948-57 |
| Engine: | Four stroke, single cylinder, side valve | Four stroke, longitudinal 60°V twin, DOHC, 4 valves per cylinder | Four stroke, stroke, twin |
| Capacity: | 598 cc / 36.5 cu in | 997.6 cc / 60.9 cu in | 498 cc / 30.4 cu in |
| Bore x Stroke: | 86.4 x 102.0 mm | 97 x 67.5mm | 56 x 86 mm |
| Cooling System: | Air cooled | Liquid cooled | Air cooled |
| Compression Ratio: | 5.0:1 | 11.8:1 | 7.5:1 |
| Lubrication: | Dry sump | Dry sump with separate oil reservoir. Double trochoidal pump with oil cooler. | Dry sump |
| Exhaust: | 1-into-1, Chrome | Two-into-two, Euro3 | 2-into-2, Chrome |
| Induction: | Carburetor, Amal monobloc 376/13 | Integrated electronic engine management system. Indirect multipoint electronic injection, Ø57 mm throttle bodies. | Carburetor |
| Starting: | Kick start | Electric | Kick |
| Max Power: | 11.6 kW / 15.5 hp @ 4400 rpm | 102 kW / 139 hp @ 9500 rpm | 20.9 kW / 28 hp @ 6500 rpm |
| Clutch: | Dry, multiplate | Multiple disk in oil bath with patented PPC power-assisted hydraulic control | Dry clutch |
| Transmission: | 4-Speed, Burman | 6 Speed | Bruman 4-speed |
| Final Drive: | Chain | Chain | Chain |
| Wheels: | Steel, laced wire spokes | Cast aluminium alloy | Steel, laced wire spokes |
| Wheelbase: | 1422 mm / 56 in | 1410 mm / 55.5 in | 1422 mm / 56 in |
| Fuel Capacity: | 15.9 L / 4.2 US gal | 18 L / 4.8 US gal | 17 L / 4.5 US gal |