1957 Harley-Davidson Sportster XL

1957 Harley-Davidson Sportster XL

standard50sUnited States

Introduced in 1957, the 1957 Harley-Davidson Sportster XL features a 883cc OHV V-twin Ironhead engine producing 40hp, establishing itself as a notable standard motorcycle.

Specifications

Engine

Type
OHV V-twin Ironhead
Displacement
883 cc
Cylinders
2
Power
40 hp @ 5500 rpm
Torque
56.0 Nm
Compression
Bore × Stroke
76.2 × 96.8 mm
Cooling
Air-cooled
Fuel System
Linkert carburetor

Chassis & Transmission

Frame
Steel double loop
Front Suspension
Telescopic fork
Rear Suspension
Twin shock
Front Brake
Drum
Rear Brake
Drum
Front Tyre
Rear Tyre
Transmission
4-speed
Final Drive
Chain

Performance

Top Speed
160 km/h (99 mph)
¼ Mile

Dimensions & Weight

Dry Weight
200 kg (441 lbs)
Wet Weight
220 kg (485 lbs)
Seat Height
740 mm
Wheelbase
1460 mm
Ground Clearance
Fuel Capacity
13.0 L

History & Story

The 1957 1957 Harley-Davidson Sportster XL was introduced by Harley-Davidson as a standard motorcycle aimed at riders seeking standard motorcycle performance and style. Manufactured in United States, it represented Harley-Davidson's vision for the twin-cylinder standard motorcycle market during the 1950s.

The 1957 Harley-Davidson Sportster XL is motivated by a 883cc OHV V-twin Ironhead twin-cylinder unit delivering 40hp at 5500 rpm. Breathing through Linkert carburetor and kept cool by air-cooled, the engine drives through a 4-speed transmission with chain final drive.

Weighing 200 kg (441 lbs) dry, the 1957 Harley-Davidson Sportster XL uses a steel double loop frame, telescopic fork front suspension, and twin shock rear suspension. The braking system comprises drum front and drum rear units.

Performance-wise, the 1957 Harley-Davidson Sportster XL achieves a claimed top speed of 160 km/h (99 mph). With a fuel capacity of 13.0 liters, it offers reasonable range for standard motorcycle duties. The seat height of 740 mm makes it accessible for most riders.

Today, the 1957 Harley-Davidson Sportster XL is considered a highly sought-after classic that commands strong prices among collectors worldwide. Parts availability is rated as good, making ownership relatively straightforward. It remains an icon of Harley-Davidson motorcycling from 1950s.

Known Issues

  • Oil leaks considered normal on vintage models
  • Generator and voltage regulator issues
  • Primary chain tensioner adjustment
  • Period-correct fasteners and hardware hard to find

Fun Facts

  • Pristine examples of the 1957 Harley-Davidson Sportster XL can command six-figure prices at auction
  • The 1957 Harley-Davidson Sportster XL is considered one of the most collectible motorcycles from Harley-Davidson
  • The 1957 Harley-Davidson Sportster XL is widely regarded as a milestone in motorcycle history

Collector Information

Parts Availability
Good
Collector Rating
9/10

Resources & Parts