
Adler M 250 S
Key specifications
Overview
Introducing the 1956 Adler M 250 S, a remarkable motorcycle that embodies the spirit of post-war Europe, blending innovative engineering with a timeless design. Positioned in the allround category, the M 250 S was crafted for versatility, appealing to both daily commuters and weekend adventurers. With its sleek lines and robust build, this bike not only captures the eye but also promises a dependable ride, making it a favorite among enthusiasts who appreciate classic motorcycles with a storied past. At the heart of the Adler M 250 S lies a spirited 247cc twin-cylinder, two-stroke engine that delivers a thrilling performance. With a compression ratio of 5.8:1, this powerhouse generates a top speed of 116 km/h (72.1 mph), allowing riders to leave the mundane behind and embrace the open road. The engine's design, featuring a bore and stroke of 54mm x 54mm, ensures a balanced power delivery, while the 4-speed gearbox and wet multiplate clutch offer smooth gear transitions that enhance the overall riding experience. Riders will appreciate the air-cooled system, which keeps the engine running efficiently, even during spirited rides. The engineering excellence of the M 250 S extends beyond the engine to its chassis and suspension. The semi double cradle frame provides a solid foundation, ensuring stability at higher speeds and during cornering. Equipped with drum brakes at both ends, measuring 180mm, the M 250 S delivers reliable stopping power, instilling confidence in the rider. The rear suspension, featuring two shocks, absorbs bumps effectively, making for a comfortable ride on various terrains. The classic kick starter adds a touch of nostalgia, reminding riders of the traditional methods of motorcycling while providing the simplicity of operation. **
Pros
- Agile Performance: The lightweight frame and responsive engine make the M 250 S highly maneuverable, ideal for both city riding and rural exploration.
- Classic Aesthetics: With its vintage design, the Adler M 250 S is a head-turner, appealing to collectors and classic motorcycle enthusiasts alike.
- Simplicity of Maintenance: The straightforward engineering and traditional components make servicing and repairs easier for owners, ensuring longevity.
Cons
- Limited Speed: While the top speed of 116 km/h is adequate for its time, modern riders may find it lacking compared to contemporary motorcycles.
- Drum Brakes: The expanding drum brakes, though reliable, may not offer the same stopping power and responsiveness as modern disc brakes.
- Two-Stroke Engine: The two-stroke design requires more frequent maintenance and attention to oil mixing, which may deter less experienced riders.
Technical details
Source specification data
- Make
- Adler
- Model
- M 250 S
- Category
- Allround
- Starter
- Kick
- Clutch
- Wet multiplate
- Gearbox
- 4-speed
- Top Speed
- 116.0 km/h (72.1 mph)
- Fuel System
- Carburettor
- Bore X Stroke
- 54.0 x 54.0 mm (2.1 x 2.1 inches)
- Compression
- 5.8:1
- Displacement
- 247.00 ccm (15.07 cubic inches)
- Cooling System
- Air
- Engine Details
- Twin, two-stroke
- Transmission Type Final Drive
- Chain
- Seat
- Single
- Frame Type
- Semi double cradle
- Rear Brakes
- Expanding brake (drum brake)
- Front Brakes
- Expanding brake (drum brake)
- Rear Suspension
- Two schock
- Rear Brakes Diameter
- 180 mm (7.1 inches)
- Front Brakes Diameter
- 180 mm (7.1 inches)