The 1956 Harley-Davidson KH from United States was powered by a 883cc SV V-twin producing 38hp at 5500rpm. Weighing 200.0kg (441 lbs) and with a seat height of 720mm, it was aimed at standard riders.
The 1970 Harley-Davidson Sportster XLH by contrast offered 883cc of OHV V-twin Ironhead power, delivering 58hp at 6200rpm. Tipping the scales at 210.0kg (463 lbs) with a top speed of 170km/h (106 mph), it offered a distinct riding experience. 1950s bikes represent the golden age of British motorcycling and early Japanese innovation, with well-maintained examples commanding premium prices.
Specifications Comparison
| 1956 Harley-Davidson KH | 1970 Harley-Davidson Sportster XLH | |
|---|---|---|
| Displacement | 883 cc | 883 cc |
| Power | 38 hp | 58 hp |
| Torque | 52.0 Nm | 60.0 Nm |
| Cylinders | 2 | 2 |
| Top Speed | 155 km/h | 170 km/h |
| Quarter Mile | — | — |
| Dry Weight | 200.0 kg | 210.0 kg |
| Wet Weight | 218.0 kg | 230.0 kg |
| Seat Height | 720 mm | 750 mm |
| Wheelbase | 1450 mm | 1470 mm |
| Fuel Capacity | 13.0 L | 13.0 L |
| Gears | 4 -speed | 4 -speed |
The Verdict
Comparing these two Harley-Davidson machines reveals the brand's evolution. The 1956 Harley-Davidson KH laid the groundwork with 38hp, while the later 1970 Harley-Davidson Sportster XLH pushed output to 58hp. From a collector's perspective, the 1956 Harley-Davidson KH holds the edge with a 7/10 rating. Either way, both are worthy additions to any Harley-Davidson collection. Parts availability is difficult for the 1956 Harley-Davidson KH and good for the 1970 Harley-Davidson Sportster XLH — an important factor for any restoration project.
About the 1956 Harley-Davidson KH
Harley-Davidson released the 1956 Harley-Davidson KH in 1956 with a 883cc SV V-twin powerplant making 38hp — a definitive standard motorcycle.
Full 1956 Harley-Davidson KH Profile →About the 1970 Harley-Davidson Sportster XLH
A standard motorcycle from 1970, the 1970 Harley-Davidson Sportster XLH delivers 58hp from its 883cc OHV V-twin Ironhead engine.
Full 1970 Harley-Davidson Sportster XLH Profile →