The Adler MB 250 RS is a 1953 motorcycle with a 2 cylinder, 2 stroke engine that has a capacity of 247 cc. It has a 54 x 54 mm bore x stroke and is air-cooled with petrol oil mix lubrication. The motorcycle features a multi-plate clutch and kick start with a 6V, 6Ah battery and Bosch coil ignition. It has twin Bing carburetors and a twin steel chrome exhaust system. The max power output is 19.2 kW at 7500rpm with a compression ratio of 1:5.75. The motorcycle has a 4-speed gearbox in the engine block controlled by a foot gearchange and features a chain final drive. The double tubular frame includes a sidecar adapter and the front suspension has twin swinging leading link forks with a shock absorber and steering damper. The rear suspension is a swinging fork adjustable for load and road conditions. The Adler MB 250 RS uses 3.25 x 16 inch tires and has drum brakes, 180 mm in diameter on both the front and back.
Technical specifications:
Make Model: Adler MB 250 RS
| Year | 1953 |
|---|---|
| Engine | 2 cylinder, 2 stroke, flat-crowned pistons |
| Capacity | 247 cc / 15.1 cub in. |
| Bore x Stroke | 54 x 54 mm |
| Cooling | Air cooled |
| Lubrication | Petrol oil mix 25:1 |
| Clutch | Multi plate |
| Starting | Kick start |
| Battery | 6V, 6Ah |
| Ignition | Bosch coil |
| Carburetor | Twin Bing carburetors |
| Exhaust System | Twin, steel, chrome |
| Max Power | 19.2 kW / 26 hp @ 7500 rpm |
| Compression Ratio | 1: 5.75 |
| Clutch | Multi disc |
| Transmission | 4 Speed gearbox housed in engine block, foot gearchange |
| Final Drive | Chain |
| Frame | Double tubular frame with sidecar adapter. |
| Front suspension | Twin swinging leading link forks with shock absorber and steering damper |
| Rear suspension | Swinging fork adjustable for load and road conditions |
| Tyres (front and back) | 3.25 x 16 in. |
| Brakes (front and back) | Drums, 180 mm diameter |
