MotoLibrary MotoLibrary
← adler
Allround · 1955

m 250 s

User Rating: /5 · No user ratings yet ✓ Your rating was saved
MotoLibrary Score
39 /100 Commuter
Power
16 HP
Top Speed
116 km/h
Engine
247 ccm

1955 adler m 250 s Technical Analysis & Specification Breakdown

Positioned in adler's allround motorcycle lineup, the 1955 adler m 250 s relies on a 247 cc (15.1 cu in) air-cooled twin, two-stroke powerplant. In factory specification, peak output is rated at 16 HP (11.7 kW) at 5,590 rpm, transferring power to the rear wheel through a 4-speed gearbox and chain final drive. With a specific output of 64.8 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

Within MotoLibrary's adler archive, this model family spans 5 indexed model years from 1952 to 1956, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Specific Output
64.8 HP/L
Engine
Displacement 247.0 ccm (15.07 cubic inches)
Engine Type Twin, two-stroke
Engine Details Twin, two-stroke
Power 16.0 HP (11.7 kW)) @ 5590 RPM
Compression 5.8:1
Bore x Stroke 54.0 x 54.0 mm (2.1 x 2.1 inches)
Fuel System Carburettor
Cooling Air
Transmission
Gearbox 4-speed
Final Drive Chain (final drive)
Clutch Wet multiplate
Performance
Top Speed 116.0 km/h (72.1 mph)
Chassis
Frame Type Semi double cradle
Rear Suspension Two schock
Wheels & Brakes
Front Brakes Expanding brake (drum brake)
Front Brake Ø 180 mm (7.1 inches)
Rear Brakes Expanding brake (drum brake)
Rear Brake Ø 180 mm (7.1 inches)
Other
Starter Kick
More from adler
Buying Checklist

Before You Compare This Bike

Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.

Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
Rider Profile

Who Is This Bike For?

🟢
Beginner
A2 license compatible, manageable power.
🌍
Best For
All-Round & Adventure
Estimate

Ownership Cost Calculator

⛽ Fuel
per year
🔧 Maintenance
per year
🛡️ Insurance
per year
TOTAL

* Estimates only. Actual costs vary by country, riding habits, insurance provider and maintenance schedule.

MotoLibrary
🏠 Home 🔍 All Bikes 📂 Categories ⚖️ Compare 🎛️ Advanced Filter 🎯 Bike Finder 🎬 Videos 📰 Blog 📖 Glossary ℹ️ About

🍪 We use cookies for analytics & ads. Cookie Policy