Ktm Duke 640 vs Ktm Duke 690
Side-by-side comparison for used motorcycle buyers
Ktm Duke 640 vs Ktm Duke 690. Ktm Duke 640: 55 hp @ 7,000 rpm hp, 148 kg (wet/curb weight) weight, top speed 170 km/h, Motoryk rating 7.5/10. Ktm Duke 690: 73 hp @ 8,000 rpm hp, 149 kg (wet/curb weight) weight, top speed 175 km/h, Motoryk rating 7.8/10.
Performance at a Glance
Green = winner per metric · Bars are relative to the higher value
Ktm Duke 640
Ktm Duke 690
Horsepower (hp)
55 hp
73 hp
Torque (Nm)
60 Nm
73 Nm
Top Speed (km/h)
170 km/h
175 km/h
Weight (kg) — lower is better
148 kg
149 kg
Type
Naked
Naked
Horsepower
55 hp @ 7,000 rpm
73 hp @ 8,000 rpm
Torque
60 Nm @ 5,500 rpm
73 Nm @ 6,500 rpm
Top Speed
170 km/h
175 km/h
Weight
148 kg (wet/curb weight)
149 kg (wet/curb weight)
Fuel
5.5–7.0 L/100km (typical real-world average)
4.5 L/100km (approx. 22 km/L, typical real-world average)
Fairing
No
No
Individual Reviews
Ktm Duke 640
7.5/10
"Buy the best example you can find, inspect religiously."
Pros
+Incredible single-cylinder character
+Razor-sharp, lightweight handling
+Strong used parts availability
Cons
−Patchy build quality era
−Expensive dealer maintenance bills
−Vibration fatigues on motorways
Ktm Duke 690
7.8/10
"Raw, rewarding, and punishing if you buy blind."
Pros
+Razor-sharp chassis dynamics
+Exceptional power-to-weight ratio
+Genuinely fun urban weapon
Cons
−Expensive, often-skipped servicing
−Vibration tires you out
−Seat comfort is criminal
Top 10 Accessories
Picks that work on either bike.
