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Harley-Davidson FLH Duo Glide
1959Touring

Harley-Davidson FLH Duo Glide

Key specifications

Engine
1213 cc
Power
55 HP
Weight
304 kg
Fuel type
petrol
Fuel capacity
3.8 L
Transmission
4-speed
Front brakes
Expanding brake (drum brake)
Rear brakes
Expanding brake (drum brake)

Overview

The 1959 Harley-Davidson FLH Duo Glide stands as a testament to the golden age of American touring motorcycles, combining classic aesthetics with robust engineering to deliver an unforgettable riding experience. Positioned as a premium offering in Harley-Davidson's lineup, the FLH Duo Glide was designed for those who sought comfort on long rides without compromising on performance. Its sophisticated design features the iconic Harley flair, making it a sought-after model for both collectors and enthusiasts alike, who appreciate the raw beauty and history that accompany this vintage beast. At the heart of the FLH Duo Glide lies a powerful 1212.72 ccm (74.00 cubic inches) V2 engine, which produces a commendable 55 horsepower at 4800 RPM. With a compression ratio of 7.0:1 and a bore and stroke of 87.0 x 102.0 mm, the engine delivers robust torque and a distinctive rumble that only a Harley can provide. The four-speed gearbox allows for smooth transitions between gears, while the chain final drive offers reliable power delivery. Riders will appreciate the air-cooled system that keeps the engine performing well even on the hottest days, making the FLH Duo Glide an ideal companion for long-distance cruising. The hydraulic telescopic front forks, paired with a swingarm rear suspension featuring dual coil-over shocks, ensure a plush ride, effectively absorbing bumps and imperfections in the road, enhancing overall comfort. The 1959 FLH Duo Glide is not just about power; it’s also a showcase of thoughtful features and technology for its time. Equipped with an electric starter, this motorcycle makes firing up the engine a breeze, a luxury that was not commonplace in its era. Available in a palette of striking colors, including classic black, vibrant red, ocean blue, and retro turquoise, riders can choose a finish that reflects their personal style. The model's windscreen adds to the touring capability, reducing wind fatigue during long rides and enhancing overall aerodynamics. With a fuel capacity of 14.19 liters (3.75 gallons), riders can confidently embark on extended journeys without frequent stops for refueling. In the end, the 1959 Harley-Davidson FLH Duo Glide represents a harmonious blend of performance, comfort, and timeless style, making it a cherished piece of motorcycle history and a reliable companion for the open road.

Pros

  • Comfortable Touring Experience: The combination of dual suspension and windscreen makes long rides enjoyable.
  • Iconic Design: The classic Harley-Davidson aesthetics ensure it stands out in any crowd, attracting admiration from fellow enthusiasts.
  • Reliable Performance: The robust V2 engine provides solid power and torque, making it suitable for highway cruising and city rides alike.

Cons

  • Weight: At 304 kg (670.2 pounds), the FLH Duo Glide can feel heavy, especially at low speeds or during maneuvers.
  • Limited Braking Technology: The drum brakes, while sufficient for the era, may not provide the stopping power that modern riders expect.
  • Fuel Efficiency: With its older engine design, the FLH's fuel consumption may not match the efficiency of newer touring motorcycles, leading to more frequent gas stops.

Technical details

Source specification data

Make
Harley-Davidson
Model
FLH Duo Glide
Category
Touring
Starter
Electric
Comments
Windscreen
.
H
models have higher compression then
L
.
Electrical
6 Volt battery.
Color Options
Black, red, blue, turquoise
Power
55.00 HP (40.1 kW)) @ 4800 RPM
Gearbox
4-speed
Engine Type
Panhead V-twin engine
Fuel System
Carburettor
Bore X Stroke
87.0 x 102.0 mm (3.4 x 4.0 inches)
Compression
7.0:1
Displacement
1212.72 ccm (74.00 cubic inches)
Cooling System
Air
Engine Details
V2, four-stroke
Transmission Type Final Drive
Chain
Dry Weight
304.0 kg (670.2 pounds)
Oil Capacity
3.70 litres (0.24 quarts)
Fuel Capacity
14.19 litres (3.75 gallons)
Power Weight Ratio
0.1809 HP/kg
Seat
Solo seat
Wheels
Wire spoked
Rear Tyre
5.00-16
Frame Type
Tubular cradle
Front Tyre
5.00-16
Rear Brakes
Expanding brake (drum brake)
Front Brakes
Expanding brake (drum brake)
Rear Suspension
Swingarm. Dual coil-over-shocks.
Front Suspension
Hydraulic telescopic forks

Available colors

Blackredblueturquoise