Back to Bike FinderYears: 1959 · 1958 · 1957
1957Sportbike
Simson 425 GS
Key specifications
Engine
247 cc
Power
18 HP
Weight
157 kg
Fuel type
petrol
Fuel capacity
4.2 L
Front brakes
Expanding brake (drum brake)
Rear brakes
Expanding brake (drum brake)
Technical details
Source specification data
- Make
- Simson
- Model
- 425 GS
- Category
- Sport
- Power
- 17.50 HP (12.8 kW)) @ 7200 RPM
- Ignition
- Magneto
- Fuel System
- Carburettor
- Bore X Stroke
- 68.0 x 68.0 mm (2.7 x 2.7 inches)
- Displacement
- 247.00 ccm (15.07 cubic inches)
- Cooling System
- Air
- Engine Details
- Single cylinder, four-stroke
- Fuel Consumption
- 3.30 litres/100 km (30.3 km/l or 71.28 mpg)
- Greenhouse Gases
- O2
- g/km. (
- O2
- -
- Carbon
- dioxide emission)
- Transmission Type Final Drive
- Shaft drive (cardan)
- Dry Weight
- 157.0 kg (346.1 pounds)
- Fuel Capacity
- 16.00 litres (4.23 gallons)
- Power Weight Ratio
- 0.1115 HP/kg
- Seat
- Single
- Rear Tyre
- 4-18
- Front Tyre
- 3.5-19
- Rear Brakes
- Expanding brake (drum brake)
- Front Brakes
- Expanding brake (drum brake)
- Rear Suspension
- Swingarm
- Front Suspension
- Telescopic
- Rear Brakes Diameter
- 180 mm (7.1 inches)
- Front Brakes Diameter
- 180 mm (7.1 inches)