KTM 125 Duke 2017 vs. Aprilia RS 660 2021

KTM 125 Duke 2017

Aprilia RS 660 2021

Overview - KTM 125 Duke 2017 vs Aprilia RS 660 2021

KTM 125 Duke 2017

Aprilia RS 660 2021

Technical Specifications KTM 125 Duke 2017 compared to Aprilia RS 660 2021

KTM 125 Duke 2017

Aprilia RS 660 2021

KTM 125 Duke 2017

Aprilia RS 660 2021

Engine and Drive Train

Bore	Bore	58 mm	Bore	81 mm
Stroke	Stroke	47.2 mm	Stroke	63.93 mm
Engine power	Engine power	15 HP	Engine power	100 HP
Rpm at Max. Power	Rpm at Max. Power	10,500 rpm	Rpm at Max. Power	10,500 rpm
Torque	Torque	12 Nm	Torque	67 Nm
Rpm at Torque	Rpm at Torque	8,000 rpm	Rpm at Torque	8,500 rpm
Compression Ratio	Compression Ratio	12.6	Compression Ratio	13.5
Starter	Starter	Electric	Starter	Electric
Clutch Type	Clutch Type	Multiplate in oil-bath	Clutch Type	Multiplate in oil-bath, Antihopping
Transmission	Transmission	Chain	Transmission	Chain
Cylinders	Cylinders	1	Cylinders	2
Strokes	Strokes	4-Stroke	Strokes	4-Stroke
Displacement	Displacement	125 ccm	Displacement	659 ccm

Suspension Front

Front suspension	Front suspension	Upside-Down telescopic fork	Front suspension	Upside-Down telescopic fork
Brand	Brand	WP	Brand	Kayaba

Chassis

Frame	Frame	Chromium-molybdenum	Frame	Aluminium
Frame type	Frame type	Tubular	Frame type	Load-bearing engine

Brakes Front

Type	Type	Single disk	Type	Double disk
Piston	Piston	Four pistons	Piston	Four pistons
Technology	Technology	radial	Technology	radial

Brakes Rear

Type	Type	Disc	Type	Disc
Piston	Piston	Single piston	Piston	Double piston

Dimensions and Weights

Front tyre width	Front tyre width	110 mm	Front tyre width	120 mm
Front tyre height	Front tyre height	70 %	Front tyre height	70 %
Front tyre diameter	Front tyre diameter	17 inch	Front tyre diameter	17 inch
Rear tyre width	Rear tyre width	150 mm	Rear tyre width	180 mm
Rear tyre height	Rear tyre height	60 %	Rear tyre height	55 %
Rear tyre diameter	Rear tyre diameter	17 inch	Rear tyre diameter	17 inch
Wheelbase	Wheelbase	1,367 mm	Wheelbase	1,370 mm
Seat Height	Seat Height	800 mm	Seat Height	820 mm
Kerb Weight (with ABS)	Kerb Weight (with ABS)	127 kg	Kerb Weight (with ABS)	183 kg
Fuel Tank Capacity	Fuel Tank Capacity	11 l	Fuel Tank Capacity	15 l
License compliancy	License compliancy	A1	License compliancy	A

Pros and Cons in comparison

KTM 125 Duke 2017

It's really fantastic how much equipment you can buy in the 125cc class these days. The KTM 125 Duke is not only convincing with plenty of power and quick turn-in behaviour, its appearance is also very classy. Thanks to the aggressive look and the ultra-modern TFT display, the 125 Duke looks like a shrunken 1290 Super Duke R. A whole lot of motorbike in a small package.

Pull-through

Quick turn-in behaviour

Compact dimensions

Very easy to ride

Great looks

TFT display

Brake weaker than the competition

Aprilia RS 660 2021

In 2021, the Aprilia RS 660 can be seen as the last true 600cc supersport, because with its sporty seating position and high-quality chassis components, it hits the sweet spot between suitability for everyday use and trackday potential. Thanks to the comprehensive electronics package, nothing is left to be desired on the road or on the track - and you can't complain about the powerful two-cylinder anyway. A great package for all those for whom 200+ hp superbikes are too much for everyday use.

powerful engine

extensive electronics package

sporty chassis

nice sound

low weight

sporty look

poorly readable rev counter

Price Comparison Avarage Market Price KTM 125 Duke vs Aprilia RS 660

Price KTM 125 Duke

Model year

Average market price

Current average market prices

Price Aprilia RS 660

Model year

Average market price

Current average market prices