The Harley-Davidson Model J motorcycle specifications include a 989 cc (60.35 cu in) engine and a listed weight of 136 kg (299.8 lb).
Key specifications
1915-1929Model years
989 ccDisplacement
136 kgDry weight
Model years covered
191519161917191819191920192119221923192419251926192719281929
Year-specific specification changes
The 1915 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
Dry weight
19161923145 kg (319.7 lb)
1924163 kg (359.4 lb)
19251928190 kg (418.9 lb)
1929181 kg (399 lb)
How the Harley-Davidson Model J 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.
Displacement989 cc
Low 165 ccAverage 1,275 ccHigh 1,868 cc
About 22% lower than the Harley-Davidson database average. Around the 24th 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.
Displacement24th
989 cc — larger displacement than about 24% of Harley-Davidson models.
Mechanical overview
Engine layout snapshot
V2, four-stroke • 989 cc
Chassis snapshot
Chain (final drive) • 3-28 front / 3-28 rear
Additional useful specifications
| Front tire size |
3-28 |
| Rear tire size |
3-28 |
| Bore/stroke ratio |
0.95:1 (Undersquare) |
Engine specifications
| Engine type |
V2, four-stroke |
| Displacement |
989 cc (60.35 cu in) |
| Bore × stroke |
84.1 x 88.9 mm (3.3 x 3.5 inches) |
| Fuel system |
Carburettor |
| Ignition |
H.D generator |
Transmission and drivetrain
| Final drive |
Chain (final drive) |
Brakes, wheels and tires
| Rear brakes |
Expanding brake (drum brake) |
| Front tire |
3-28 |
| Rear tire |
3-28 |
| Wheels |
Spoked |
Dimensions and weight
| Dry weight |
136 kg (299.8 lb) |
Performance
| Top speed |
136.8 km/h (85.0 mph) |
| Power/weight ratio |
0.1250 hp/kg |
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.