Velocette MOV (1933-48) vs CR&S CR&S Vun Gunmetal & CR&S Racing Checkers () vs Adler MB 250 RS (1953)
Comparison technical specifications
Add bike |
Remove bike |
Remove bike |
Remove bike |
| Make: | Velocette | CR&S | Adler |
| Model: | MOV | CR&S Vun Gunmetal & CR&S Racing Checkers | MB 250 RS |
| Years: | 1933-48 | 1953 | |
| Engine: | Four stroke, single cylinder, OHV | Rotax, four stoke, single cylinder, DOHC, 4 valves per cylinder | 2 cylinder, 2 stroke, flat-crowned pistons |
| Capacity: | 248 cc / 15.1 cub in | 652 cc / 39.79 cu-in | 247 cc / 15.1 cub in. |
| Bore x Stroke: | 68.5 x 68.5 mm | 100 x 83 mm | 54 x 54 mm |
| Compression Ratio: | 6.75:1 | 9.7;1 | 1: 5.75 |
| Lubrication: | Dry sump | Dry sump | Petrol oil mix 25:1 |
| Ignition: | Miller dynamo | Marelli integrated electronic, twin spark | Bosch coil |
| Starting: | Kick start | Electric | Kick start |
| Max Power: | 8.8 kW / 12 hp @ 5000 rpm | 54 hp / 40 kW @ 7000 rpm | 19.2 kW / 26 hp @ 7500 rpm |
| Clutch: | Three-plate | Wet multiplate | Multi disc |
| Transmission: | 4 Speed, initially hand changed, later by foot | 5 Speed | 4 Speed gearbox housed in engine block, foot gearchange |
| Final Drive: | Chain | With “O” ring chain | Chain |
| Frame: | Single top and front down tubes and twin tube cradle | Steel tubes and machined light alloy plates compound | Double tubular frame with sidecar adapter. |
| Front Suspension: | Webb forks with shock absorbers and steering damper | 46mm Telescopic forks | Twin swinging leading link forks with shock absorber and steering damper |
| Rear Suspension: | Spring loaded seat | Oscillating swingarm, single shock absorber | Swinging fork adjustable for load and road conditions |
| Fuel Capacity: | 11.4 L / 3 US gal | 12,5 Litres / 3.3 US gal | 12 L / 3.2 US gal |