Ducati 500GTL (1975 – 76)

Ducati 500GTL (1975 - 76)

The Ducati 500GTL, a parallel twin with a storied history, born from necessity in 1975’s post-oil crisis era. Its engine, a chain-driven SOHC design with two valves per cylinder, was designed to reduce manufacturing costs, not performance. The result is an engine that hums and purrs, its smooth power delivery a testament to the ingenuity of Ing. Tumidei’s design.

As you ride the 500GTL, you’ll notice its handling is surprisingly good, despite modest performance. The bike’s styling, courtesy of Giugiaro, may not be as iconic as some other Ducati models, but it shares a certain charm with its bigger brother, the 860GT.

The GTL’s biggest flaw lies in its reliability, particularly when it comes to oil feed to the camshaft. However, for those willing to overlook these issues, the 500GTL offers an authentic riding experience that is distinctly Ducati.

Key Specifications

Engine TypeFour stroke, parallel twin cylinder, SOHC, chain driven, 2 valve per cylinder
Engine Capacity496.9 cc / 30.2 cu in
Max Power25.7 kw / 35 hp
Fuel Tank Capacity19 L / 5.0 US gal / 4.2 Imp gal
Weight (Wet/Kerb)432 lbs / 196 kg
Seat Height29.9 inches / 760 mm
Ducati 500GTL (1975 - 76)

All Specifications

Make & Model

ModelDucati 500GTL
Year1975 – 76

Engine

Engine TypeFour stroke, parallel twin cylinder, SOHC, chain driven, 2 valve per cylinder
Displacement496.9 cc / 30.2 cu in
Bore x Stroke78 x 52 mm
Compression Ratio9.6:1
Max Horsepower25.7 kw / 35 hp
Engine Management SystemDell’Orto PHF30BS/BD
Cooling SystemAir cooled

Performance

Top Speed170 km/h / 105.6 mph

Transmission

ClutchWet, multiplate
Gearbox5 Speed
Primary Drive Ratio2.125:1 (32/68)
Gear Ratios1st 2.500 / 2nd 1.714 / 3rd 1.333 / 4th 1.074 / 5th 0.900:1
Final DriveChain

Electrical & Electronics System

BatteryYuasa Y50-N18L-A1, 12V 18Ah
StarterKick

Chassis & Suspension

Front Suspension35 mm Marzocchi telescopic fork
Rear SuspensionSwing arm, 2 x Marzocchi shocks, 3-way adjustable

Wheels & Brakes

Front Tire Size3.25-18
Rear Tire Size3.50-18
Front Brakes2 x 256 mm Brembo discs
Rear BrakesSingle 160 mm drum, leading shoe

Dimension & Weights

Overall Length2080 mm / 81.9 in
Overall Width840 mm / 33.1 in
Overall Height1100 mm / 43.3 in
Seat Height29.9 inches / 760 mm
Wheelbase55.1 inches / 1400 mm
Fuel Tank Capacity19 L / 5.0 US gal / 4.2 Imp gal
Wet (kerb/curb) Weight432 lbs / 196 kg
Dry Weight170 kg / 374 lbs

Features

  • Four stroke engine
  • Parallel twin cylinder configuration
  • Single overhead camshaft (SOHC)
  • Chain driven valve train
  • 2 valves per cylinder
  • Ducati 500GTL model
  • Oil crisis led to development of cheaper models
  • Reduced manufacturing costs a primary goal
  • 180 crankshaft for reduced vibration
  • Massive crankcases retained from previous design
  • Counter-balancers included in crankcases
  • Chain-driven valve-spring SOHC heads
  • Same basic styling as 860GT
  • Poor reliability, particularly with oil feed to camshaft
  • Modest performance, especially from 350cc engine
  • Good handling capabilities
  • Only 1,105 500s and 930 350s built before replacement by GTV model
  • Top speed of 170 km/h (105 mph)
  • Dry weight of 170 kg (374 lbs)
Ducati 500GTL (1975 - 76)
Ducati 500GTL (1975 - 76)
Ducati 500GTL (1975 - 76)
Ducati 500GTL (1975 - 76)

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