2024 KTM 125 Duke vs 2013 Aprilia RS4 125

Full specifications comparison • 2 motorcycles

Comparing 2 motorcycles

Differences only

2024 KTM 125 Duke

Sport

Engine

Four stroke, single cylinder, DOHC, 4 valves

Power

11 kW / 15 hp

Top Speed

N/A

Weight

154 kg / 306.4 lbs

2013 Aprilia RS4 125

Sport

Engine

Four stroke, single cylinder, DOHC, 4 valves

Power

11.7 kW / 16 hp @ 10500 rpm

Top Speed

N/A

Weight

122 kg / 269 lbs

Full Specifications

Differs Same

General
Year	2024	2012 - 13
Make Model	KTM 125 Duke	Aprilia RS4 125
Dimensions
Seat Height	800 mm / 32.7 in	820 mm / 32.3 in
Wheelbase	-	1350 mm / 53.1 in
Height	-	1138 mm / 44.6 in
Length	-	1953 mm / 76.8 in
Width	-	740 mm / 29.1 in
Weights & Capacities
Dry Weight	154 kg / 306.4 lbs	122 kg / 269 lbs
Fuel Capacity	-	14.5 Liters / 3.8 gal
Performance
Max Power	11 kW / 15 hp	11.7 kW / 16 hp @ 10500 rpm
Max Torque	11.5 Nm / 8.85 ft-lb	11 Nm / 1.12 kgf-m / 8.1 ft/lb @ 8500 rpm
Engine
Displacement	124.9 cc / 7.6 cu-in	124.8 cc / 7.6 cu in
Engine Detail	Four stroke, single cylinder, DOHC, 4 valves	Four stroke, single cylinder, DOHC, 4 valves
Bore x Stroke	58 x 47.3 mm	58 X 47 mm
Compression Ratio	-	12.5 ± 0.5:1
Cooling System	Liquid cooled	Liquid cooled
Emissions	EURO5	Euro 3
Engine Management	Bosch EMS with RBW	-
Fuel Induction	Bosch electronic fuel injection	Electronic injection
Ignition	-	Electronic with CDI capacity discharge
Lubrication	Wet sump	-
Starter	Electric	Electric
Drivetrain
Clutch	PASC antihopping clutch, mechanically operated	Multiple discs, in oil bath
Final Drive	Chain 520 X-ring	Chain
Gear Ratios	-	1st 11/33 (0.33) / 2nd 15/30 (0.50) / 3rd 18/27 (0.67) / 4th 20/24 (0.83) / 5th 25/27 (0.92) / 6th 23/22 (1.05)
Transmission / Drive	6 Speed	6 Speed
Chassis
Frame Type	Steel trellis frame, powder coated	Aluminum perimeter frame
Suspension - Front	43 mm WP APEX	ø41 mm Upside down fork
Suspension - Rear	WP APEX - Monoshock	Asymmetric swingarm with monoshock
Wheel Travel - Front	150 mm / 5.9 in	110 mm / 4.3 in
Wheel Travel - Rear	150 mm / 5.9 in	130 mm / 5.1 in
Electronics
ECU	-	Magneti Marelli MIU G3, Ø32 mm
Wheels & Brakes
Brakes - Front	Single 320 mm disc, 4 piston radial fixed caliper	Single Ø300 mm disc, 4 piston caliper
Brakes - Rear	Single 240 mm disc, 2 piston floating caliper	Single Ø218 mm disc, 1 piston caliper
ABS	Cornering ABS	-
Tyres - Front	-	110/80 -17
Tyres - Rear	-	130/70 -17

Verdict

Winner on specs

2024 KTM 125 Duke

The 2024 KTM 125 Duke edges out the 2013 Aprilia RS4 125 thanks to its lower seat height, standard ABS, higher rear wheel travel and higher front wheel travel. Specifications are one part of the picture - dealer support, parts availability, and intended use all matter too.

Key Differences

2024 KTM 125 Duke - Advantages

Lower seat height: 800 mm vs 820 mm - accessible to a wider range of rider heights.
Standard ABS: A meaningful safety advantage in emergency braking on wet or loose surfaces.
More rear wheel travel: 150 mm vs 130 mm - absorbs bigger hits and rough terrain better.
More front wheel travel: 150 mm vs 110 mm - greater compliance over rough surfaces.

2013 Aprilia RS4 125 - Advantages

Lighter: 122 kg vs 154 kg - easier to handle and less fatiguing on long trips.

2024 KTM 125 Duke vs 2013 Aprilia RS4 125 - FAQs

Which is lighter, the 2024 KTM 125 Duke or the 2013 Aprilia RS4 125?

The 2013 Aprilia RS4 125 is lighter at 122 kg compared to 154 kg for the 2024 KTM 125 Duke - a difference of 32 kg. This is a meaningful difference that affects handling and rider fatigue.

Which bike is better for shorter riders, the 2024 KTM 125 Duke or the 2013 Aprilia RS4 125?

The 2024 KTM 125 Duke has the lower seat at 800 mm, making it more accessible. The 2013 Aprilia RS4 125 sits higher at 820 mm. A seat height below 800 mm suits most riders; above 820 mm shorter riders may need to tiptoe.

Does the 2024 KTM 125 Duke or 2013 Aprilia RS4 125 have ABS?

The 2024 KTM 125 Duke is listed with ABS as standard. The 2013 Aprilia RS4 125 does not list ABS. ABS provides a meaningful safety benefit in emergency braking on wet or loose surfaces.

Which should I buy, the 2024 KTM 125 Duke or the 2013 Aprilia RS4 125?

Both are strong choices. The 2024 KTM 125 Duke has the edge in lower seat height and standard ABS, while the 2013 Aprilia RS4 125 stands out for lighter kerb weight. Visit dealers, arrange test rides, and factor in local parts and service costs - these often matter as much as the spec sheet.

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