KTM GS 620 Duke - 1996 Specifications and Reviews

The 1996 KTM GS 620 Duke is a lightweight single-cylinder enduro designed for riders seeking affordable off-road capability and everyday versatility. Its modest 50 horsepower and 143 kg weight make it nimble and accessible for intermediate riders tackling dirt trails and mixed terrain. Known for reliable Austrian engineering and practical simplicity, the Duke earned respect as a capable budget-friendly adventure platform.

1996
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General information

CategoryEnduro / offroad
Year1996
ModelKTM GS 620 Duke

Engine and Transmission Specifications

Transmission type,final driveChain
Gearbox5-speed
Valves per cylinder4
Torque50.00 Nm (5.1 kgf-m or 36.9 ft.lbs) @ 5900
Power50.70
Engine typeSingle cylinder, four-stroke
Capacity:609.00 ccm (37.16 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakesSingle disc
Front brakesSingle disc
 
 

Physical measures and capacities

Seat height870 mm (34.3 inches) If adjustable, lowest setting.
Power/weight ratio0.3545 HP/kg
Dry weight143.0 kg (315.3 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

50.7 hp
Peak Power
4.8s
0-60 mph

Best For

Track55%
City65%
Cornering82%
Daily Riding50%
Touring30%
Passenger25%

Rider Profile

Best ForBest suited to intermediate to experienced riders who are comfortable with a tall seat, light weight, and a punchy single-cylinder power delivery.
PurposeDesigned as a supermoto-style street fighter derived from enduro roots, excelling at flickable cornering and playful urban or backroad riding rather than long-distance cruising.
Rider FitThe tall 870mm seat height and lightweight, narrow chassis favor taller or more agile riders who can manage a top-heavy stance at stops.
CharacterA raw, minimalist, and energetic machine that rewards aggressive throttle input and quick direction changes with an old-school single-cylinder thump.
Not Ideal ForNot a good fit for riders seeking plush comfort, high-speed stability, or a comfortable two-up touring platform.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

1996 KTM GS 620 Duke Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 870mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with tip-toe one foot on the 1996 KTM GS 620 Duke, with a cramped knee angle of around 75 degrees and an upright riding position.

Data quality: estimated (wheelbase estimated from this category's typical bike, not this model's own spec). Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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