
Adler M 250 S
Key specifications
Overview
Introducing the 1952 Adler M 250 S, a remarkable piece of engineering that encapsulates the spirit of post-war motorcycling. Hailing from the renowned Adler factory in Germany, this all-round motorcycle was designed to cater to a variety of riding needs, from daily commutes to leisurely weekend rides. With its classic lines and robust construction, the M 250 S stands as a testament to the durability and ingenuity of 1950s motorcycle design, making it a sought-after model among collectors and enthusiasts alike. Under the tank, the M 250 S is powered by a spirited 247cc twin-cylinder, two-stroke engine that delivers an impressive 16 horsepower at 5,590 RPM. This engine not only provides a lively ride but also achieves a top speed of 116 km/h (72.1 mph), ensuring that riders can enjoy a thrilling experience on the open road. The semi-double cradle frame combined with a 4-speed gearbox and chain final drive offers smooth gear transitions and responsive handling. The bike's compression ratio of 5.8:1 ensures that the engine runs efficiently, while the air-cooling system keeps it running cool during those long rides. Thanks to its lightweight build of 135 kg (297.6 lbs), the M 250 S is agile and easy to maneuver, making it an excellent choice for both novice and seasoned riders. The Adler M 250 S is packed with features that enhance both functionality and comfort. Its wet multiplate clutch ensures smooth engagement, while the drum brakes—featuring a 180 mm diameter at both front and rear—provide reliable stopping power. The bike's rear suspension is designed with two shocks, offering a comfortable ride even on uneven terrain. With a fuel capacity of 12 liters (3.17 gallons), riders can enjoy longer journeys without the constant need for refueling. The classic kick starter adds a nostalgic touch, reminiscent of a bygone era of motorcycling. **
Pros
- Agile Handling: Weighing in at just 135 kg, the M 250 S is nimble and easy to maneuver, perfect for both city riding and winding country roads.
- Solid Performance: The 247cc engine delivers adequate power for enjoyable rides, and the top speed of 116 km/h makes it suitable for various riding scenarios.
- Classic Aesthetics: With its vintage styling, the M 250 S appeals to enthusiasts looking for a classic motorcycle that stands out in a crowd.
Cons
- Drum Brakes: While reliable, the expanding drum brakes may not offer the same stopping power or responsiveness as modern disc brakes.
- Limited Power Output: With only 16 HP, the M 250 S may feel underpowered for riders accustomed to more modern, high-performance motorcycles.
- Kick Start Only: The absence of an electric starter may be less convenient for some riders, especially in urban settings where quick starts are often needed.
Technical details
Source specification data
- Make
- Adler
- Model
- M 250 S
- Category
- Allround
- Starter
- Kick
- Power
- 16.00 HP (11.7 kW)) @ 5590 RPM
- 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
- Dry Weight
- 135.0 kg (297.6 pounds)
- Fuel Capacity
- 12.00 litres (3.17 gallons)
- Power Weight Ratio
- 0.1185 HP/kg
- Seat
- Single
- Rear Tyre
- 3.25-16
- Frame Type
- Semi double cradle
- Front Tyre
- 3.25-16
- 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)