
Adler M 250 S
Key specifications
Overview
Introducing the 1954 Adler M 250 S: A Classic Allrounder The 1954 Adler M 250 S stands as a testament to the golden era of motorcycle design, charming enthusiasts with its blend of classic aesthetics and practical engineering. Positioned as a versatile allrounder, this motorcycle captures the spirit of post-war mobility in Europe, appealing to both casual riders and commuting professionals. With its elegant lines and robust build, the M 250 S epitomizes the craftsmanship of Adler, a manufacturer renowned for their dedication to quality and performance. Whether navigating through city streets or embarking on leisurely country rides, this motorcycle has the capability to deliver an enjoyable experience. Engine Performance and Riding Characteristics At the heart of the Adler M 250 S lies a spirited twin-cylinder, two-stroke engine with a displacement of 247 cubic centimeters. Generating a respectable 16 horsepower at 5590 RPM, this powerplant enables the motorcycle to achieve a top speed of 116 km/h (72.1 mph), making it a lively contender in its class. The 4-speed gearbox, paired with a wet multiplate clutch, allows for smooth transitions and responsive acceleration, giving riders confidence on various terrains. The semi double cradle frame, complemented by a dual shock rear suspension, provides a balanced ride, ensuring stability and comfort even on less-than-ideal roads. Key Features and Technology The M 250 S is replete with features that enhance both functionality and rider experience. Its air-cooled engine is fed by a reliable carburetor, ensuring consistent performance across different riding conditions. The motorcycle is equipped with expanding drum brakes, both front and rear, each measuring 180 mm in diameter—offering effective stopping power for a machine of its era. Weighing in at a nimble 135 kg (297.6 pounds), the Adler M 250 S boasts a commendable power-to-weight ratio of 0.1185 HP/kg, enabling agile handling. The classic kickstarter adds a nostalgic touch, harkening back to the days when starting a motorcycle was an art form in itself. **
Pros
Cons
- Classic Design: The timeless aesthetics of the Adler M 250 S make it a sought-after classic among collectors and enthusiasts.
- Smooth Handling: The semi double cradle frame and dual shock rear suspension provide excellent stability and comfort during rides.
- Reliable Performance: With a simple yet effective two-stroke engine, this motorcycle delivers dependable power and easy maintenance.
- Limited Power Output: While adequate for city riding, the 16 HP may feel underwhelming for those seeking high-speed thrills on the highway.
- Drum Brakes: The expanding drum brakes, while effective for their time, may not offer the stopping power and responsiveness of modern disc brakes.
- Kickstarter Only: The absence of an electric starter might deter some riders accustomed to the convenience of modern starting systems.
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)
- Power Weight Ratio
- 0.1185 HP/kg
- 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)