The Kawasaki 125 KS motorcycle specifications include a 125 cc (7.63 cu in) engine, power of 13 hp (9.5 kW) @ 6,500 rpm, a 6-speed gearbox, and a listed weight of 97 kg (213.8 lb).
Key specifications
How the Kawasaki 125 KS compares
This compares the motorcycle with all Kawasaki models in this specifications database. The blue marker is this model and the grey line is the Kawasaki database average.
About 82% lower than the Kawasaki database average. Around the 5th percentile across Kawasaki models.
About 82% lower than the Kawasaki database average. Around the 11th percentile across Kawasaki models.
About 53% lighter than the Kawasaki database average. Around the 8th percentile across Kawasaki models.
About 51% smaller than the Kawasaki database average. Around the 13th percentile across Kawasaki models.
Kawasaki database percentile rankings
Percentiles show where this motorcycle sits across the Kawasaki specifications database. They are descriptive database rankings, not performance ratings.
13 hp — more powerful than about 5% of Kawasaki models with power data.
125 cc — larger displacement than about 11% of Kawasaki models.
97 kg — heavier than about 8% of Kawasaki models, or lighter than about 92%.
7.5 L — larger than about 13% of Kawasaki fuel tanks in this database.
Mechanical overview
Additional useful specifications
| Front tire size | 2.75-21 |
|---|---|
| Rear tire size | 3.00-18 |
| Power-to-weight ratio | 0.134 hp/kg |
| Power-to-weight | 134.0 hp/tonne |
| Specific power | 104.0 hp/L |
| Bore/stroke ratio | 1.11:1 (Oversquare) |
Model information
| Year released | 1974 |
|---|
Engine specifications
| Engine type | Single cylinder, two-stroke |
|---|---|
| Displacement | 125 cc (7.63 cu in) |
| Power | 13 hp (9.5 kW) @ 6,500 rpm |
| Bore × stroke | 56.0 x 50.6 mm (2.2 x 2.0 inches) |
| Compression ratio | 7.0:1 |
| Cooling system | Air |
| Fuel control | Rotary valves |
Transmission and drivetrain
| Gearbox | 6-speed |
|---|---|
| Final drive | Chain (final drive) |
Brakes, wheels and tires
| Front brakes | Expanding brake |
|---|---|
| Rear brakes | Expanding brake |
| Front tire | 2.75-21 |
| Rear tire | 3.00-18 |
Dimensions and weight
| Wet weight | 97 kg (213.8 lb) |
|---|
Fuel and emissions
| Fuel capacity | 7.50 L (1.98 US gal) |
|---|
Performance
| Top speed | 110.0 km/h (68.4 mph) |
|---|
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Kawasaki models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Kawasaki information before relying on them. Visit the official Kawasaki website.