The Honda SL 125 S motorcycle specifications include a 124 cc (7.57 cu in) engine, power of 12 hp (8.8 kW) @ 9,700 rpm, a 5-speed gearbox, and a listed weight of 108 kg (238.1 lb).
Key specifications
The 1974 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Honda SL 125 S compares
This compares the motorcycle with all Honda models in this specifications database. The blue marker is this model and the grey line is the Honda database average.
About 78% lower than the Honda database average. Around the 16th percentile across Honda models.
About 78% lower than the Honda database average. Around the 12th percentile across Honda models.
About 45% lighter than the Honda database average. Around the 14th percentile across Honda models.
About 44% smaller than the Honda database average. Around the 20th percentile across Honda models.
Honda database percentile rankings
Percentiles show where this motorcycle sits across the Honda specifications database. They are descriptive database rankings, not performance ratings.
12 hp — more powerful than about 16% of Honda models with power data.
124 cc — larger displacement than about 12% of Honda models.
108 kg — heavier than about 14% of Honda models, or lighter than about 86%.
7.5 L — larger than about 20% of Honda fuel tanks in this database.
Mechanical overview
Additional useful specifications
| Front tire size | 2.75-21 |
|---|---|
| Rear tire size | 3.25-18 |
| Power-to-weight ratio | 0.111 hp/kg |
| Power-to-weight | 111.1 hp/tonne |
| Specific power | 96.8 hp/L |
| Bore/stroke ratio | 1.13:1 (Oversquare) |
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 124 cc (7.57 cu in) |
| Power | 12 hp (8.8 kW) @ 9,700 rpm |
| Bore × stroke | 56.0 x 49.5 mm (2.2 x 1.9 inches) |
| Compression ratio | 9.5:1 |
| Valves per cylinder | 2 |
| Cooling system | Air |
| Fuel control | Overhead Cams (OHC) |
Transmission and drivetrain
| Gearbox | 5-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 | 3.25-18 |
Dimensions and weight
| Wet weight | 108 kg (238.1 lb) |
|---|
Fuel and emissions
| Fuel capacity | 7.50 L (1.98 US gal) |
|---|
Performance
| Top speed | 102.0 km/h (63.4 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 Honda models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Honda information before relying on them. Visit the official Honda website.