The Harley-Davidson Model S motorcycle specifications include a 345 cc (21.05 cu in) engine.
Key specifications
1926-1932Model years
345 ccDisplacement
Model years covered
1926192719281929193019311932
Year-specific specification changes
No material specification changes from the 1926 baseline were found in the available data.
How the Harley-Davidson Model S compares
This compares the motorcycle with all Harley-Davidson models in this specifications database. The blue marker is this model and the grey line is the Harley-Davidson database average.
Displacement345 cc
Low 165 ccAverage 1,275 ccHigh 1,868 cc
About 73% lower than the Harley-Davidson database average. Around the 4th percentile across Harley-Davidson models.
This model Harley-Davidson database average
Harley-Davidson database percentile rankings
Percentiles show where this motorcycle sits across the Harley-Davidson specifications database. They are descriptive database rankings, not performance ratings.
Displacement4th
345 cc — larger displacement than about 4% of Harley-Davidson models.
Mechanical overview
Engine layout snapshot
Single cylinder, two-stroke • 345 cc
Chassis snapshot
Chain (final drive) • 2.5-28 front / 2.5-28 rear
Additional useful specifications
| Front tire size |
2.5-28 |
| Rear tire size |
2.5-28 |
Model information
| Category |
Enduro / offroad |
Engine specifications
| Engine type |
Single cylinder, two-stroke |
| Displacement |
345 cc (21.05 cu in) |
| Fuel system |
Carburettor |
| Fuel control |
Overhead Valves (OHV) |
Transmission and drivetrain
| Final drive |
Chain (final drive) |
Brakes, wheels and tires
| Front tire |
2.5-28 |
| Rear tire |
2.5-28 |
| Wheels |
Spoked |
Performance
| Top speed |
137.0 km/h (85.1 mph) |
Other specifications
| Seat |
Single |
| Exhaust system |
No pipes |
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 Harley-Davidson models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Harley-Davidson information before relying on them. Visit the official Harley-Davidson website.