Adler MB250S

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Adler MB 250S
Production 1956
Class Classic
air-cooled, two-stroke, twin cylinder
Bore / Stroke 53.3mm x 53.3mm
Compression ratio 5.75:1
Horsepower 17.97 HP (13.4 KW) @ 5600RPM
Transmission Gear box: 4-speed, manual

Final Drive: chain

Clutch: wet multi-disc, manual
Suspension Front: leading link fork
Rear: adjustable plunger dual shocks
Brakes Front: 180mm diameter
Rear: 180mm diameter
Front Tire 3.25 x 16
Rear Tire 3.25 x 16
Wheelbase 49.49 inches (1257 mm)
Length 77.52 inches (1969 mm)
Width 25.59 inches (650 mm)
Weight 135.0 kg (wet)
Related Adler MB250 Adler MB250RS
Manuals Service Manual

The Adler MB 250S was a air-cooled, two-stroke, twin cylinder Classic motorcycle produced by Adler in 1956. Claimed horsepower was 17.97 HP (13.4 KW) @ 5600 RPM.

Engine[edit | edit source]

A 53.3mm bore x 53.3mm stroke result in a displacement of just 247.0 cubic centimeters.

Drive[edit | edit source]

The bike has a 4-speed, manual transmission. Power was moderated via the wet multi-disc, manual.

Chassis[edit | edit source]

It came with a 3.25 x 16 front tire and a 3.25 x 16 rear tire. Stopping was achieved via 180mm diameter in the front and a 180mm diameter in the rear. The front suspension was a leading link fork while the rear was equiped with a adjustable plunger dual shocks. The wheelbase was 49.49 inches (1257 mm) long.

1956 Adler MB 250S[edit | edit source]

1956 Adler MB 250S 1956 Adler MB 250S 1956 Adler MB 250S

The 1955 Adler MB 250S sports an air-cooled, two-stroke, 247cc, twin cylinder engine paired to a four-speed manual transmission, and can produce a claimed 18 horsepower at 5600 rpm. It boasts standard features such as laced wheels, a high-mounted exhaust, a single saddle, dual shocks as a rear suspension, a leading link fork in the front, a drum braking system, and a large headlamp.