The Adler MB250RS was a twin, two-stroke Classic motorcycle produced by Adler between 1954 and 1956. It could reach a top speed of 105 mph (169 km/h). Claimed horsepower was 26.02 HP (19.4 KW) @ 7500 RPM.
| Manufacturer | Adler |
|---|---|
| Also called | MB 250 RS |
| Production | 1954 - 1956 |
| Class | Classic |
| Engine | twin, two-stroke |
| Bore / Stroke | 54.0mm x 54.0mm |
| Compression ratio | 5.75:1 |
| Top speed | 105 mph (169 km/h) |
| Horse Power | 26.02 HP (19.4 KW) @ 7500RPM |
| Ignition type | coil |
| Battery | 5.8:1 |
| Transmission | Gear box: 4-speed, manual Final Drive: chain |
| Suspension | Front: leading link fork Rear: dual shocks |
| Brakes | Front: expanding brake (drum brake) Rear: expanding brake (drum brake) |
| Front Tire | 3.25-16 |
| Rear Tire | 3.25-16 |
| Wheelbase | 49.49 inches (1257 mm) |
| Weight | (dry), 98.0 kg (wet) |
| Fuel capacity | 3.17 Gallon (12.00 Liters) |
| Manuals | Service Manual |
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Engine
The engine was a air cooled twin, two-stroke. A 54.0mm bore x 54.0mm stroke result in a displacement of just 247.0 cubic centimeters.
Drive
The bike has a 4-speed, manual transmission. Power was moderated via the wet multi-disc, manual.
Chassis
It came with a 3.25-16 front tire and a 3.25-16 rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The front suspension was a leading link fork while the rear was equiped with a dual shocks. The MB250RS was fitted with a 3.17 Gallon (12.00 Liters) fuel tank. The wheelbase was 49.49 inches (1257 mm) long.
1954 Adler MB 250 RS
The 1953 Adler MB 250 RS has, at its heart, an air-cooled, two-stroke, 247cc, twin cylinder powerhouse paired to a four-speed manual transmission, and can produce a claimed 26 horsepower at 7500 rpm. It comes standard with laced wheels, a single seat, a leading link front fork, dual rear shocks as a rear suspension, and a 12-liter (3.2-gallon) fuel tank.