At the heart of the 1986 Harley-Davidson FXWG custom - cruiser motorcycle, Harley-Davidson relies on a 1338.6 cc (81.7 cu in) air-cooled engine powerplant. In factory specification, peak output is rated at 69 HP (50.4 kW) at 5,000 rpm while maximum torque reaches 111.2 Nm (82 lb-ft) at 3,600 rpm, transferring power to the rear wheel through a 4-speed gearbox and belt final drive. With a specific output of 51.5 HP per liter and a 1,400 rpm working window between peak torque (3,600 rpm) and peak power (5,000 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the FXWG measures 259.5 kg (572 lbs) dry, translating to a power-to-weight ratio of 0.27 HP/kg (3.76 kg per horsepower). Rider ergonomics and chassis geometry center around a 654 mm (25.7 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1 mm (0 in) wheelbase engineered for quick, flickable steering geometry. The 19-liter (5 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 164 km/h (102 mph).
Specific Output
51.5 HP/L
Power-to-Weight
0.27 HP/kg (3.76 kg/HP)
Power Band Window
3,600–5,000 rpm
Standover Height
654 mm (25.7 in)
Engine
Displacement1338.60 ccm (81.68 cubic inches)
Engine DetailsV2, four-stroke
Power69.00 HP (50.4 kW)) @ 5000 RPM
Torque111.19 Nm (11.3 kgf-m or 82.0 ft.lbs) @ 3600 RPM
Compression8.5:1
Bore x Stroke88.8 x 108.0 mm (3.5 x 4.3 inches)
Valves/Cylinder2
Fuel SystemCarburettor
Fuel ControlOverhead Valves (OHV)
Ignitionelectronic breakerless
Lubricationexternal tank
CoolingAir
Transmission
Gearbox4-speed
Final DriveBelt
Clutchwet
Performance
Top Speed164.2 km/h (102.0 mph)
Chassis
Rake38.0°
Trail127 mm (5.0 inches)
Wheelbase1,651 mm (65.0 inches)
Ground Clearance152 mm (6.0 inches)
Wheels & Brakes
Front TyreMH90-21
Rear TyreMT90-16
Front BrakesSingle disc
Front Brake Ø292 mm (11.5 inches)
Rear BrakesSingle disc
Rear Brake Ø292 mm (11.5 inches)
Dimensions & Weight
Dry Weight259.5 kg (572.0 pounds)
Power/Weight0.2659 HP/kg
Seat Height654 mm (25.7 inches) If adjustable, lowest setting.
Overall Height1,194 mm (47.0 inches)
Overall Length2,362 mm (93.0 inches)
Overall Width699 mm (27.5 inches)
Fuel Capacity19.00 litres (5.02 gallons)
Other
StarterElectric & kick
Color Optionsblack/red pinstripe, maroon/flame
Notes
I read that the FXWG was Willie G´s first design after break away from AMF, first ´Factory Chopper´ with forward controls, 35 degree neck rake, 3 degree triple tree rake, first high handlebars from factory. 1986 last year of production, 579 total.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
