MotoSpecs

2014 KTM 125 Duke vs 2013 Aprilia RS4 125

Full specifications comparison • 2 motorcycles

Comparing 2 motorcycles
2014 KTM 125 Duke 2014 KTM 125 Duke

Sport

Engine
Four stroke, single cylinder, DOHC, 4 Valves
Power
11.3 kW / 15 hp @ 10500 rpm
Top Speed
N/A
Weight
127 kg / 280 lbs
2013 Aprilia RS4 125 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
General
Year2013 - 142012 - 13
Make ModelKTM 125 DukeAprilia RS4 125
Dimensions
Seat Height810 mm / 31.8 in820 mm / 32.3 in
Wheelbase1367 mm / 53.8 in1350 mm / 53.1 in
Ground Clearance170 mm / 6.7 in-
Height-1138 mm / 44.6 in
Length-1953 mm / 76.8 in
Width-740 mm / 29.1 in
Weights & Capacities
Dry Weight127 kg / 280 lbs122 kg / 269 lbs
Fuel Capacity11 Litres / 2.9 US gal / 2.4 Imp gal14.5 Liters / 3.8 gal
Performance
Max Power11.3 kW / 15 hp @ 10500 rpm11.7 kW / 16 hp @ 10500 rpm
Max Torque12 Nm / 1.22 kgf-m / 8.85 ft-lb @ 8000 rpm11 Nm / 1.12 kgf-m / 8.1 ft/lb @ 8500 rpm
Engine
Displacement124.7 cc / 7.6 cu-in124.8 cc / 7.6 cu in
Engine DetailFour stroke, single cylinder, DOHC, 4 ValvesFour stroke, single cylinder, DOHC, 4 valves
Bore x Stroke58 x 47 mm58 X 47 mm
Compression Ratio14.5:112.5 ± 0.5:1
Cooling SystemLiquid cooledLiquid cooled
Emissions-Euro 3
Fuel InductionElectronic fuel injectionElectronic injection
IgnitionContactless, controlled, fully electronic ignition system with digital ignition timing adjustmentElectronic with CDI capacity discharge
LubricationForced oil lubrication with 1 Eaton pump-
StarterElectricElectric
Drivetrain
ClutchMulti-disc clutch, operated hydraulicallyMultiple discs, in oil bath
Final DriveChain 5/8 x 1/4" X RingChain
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 / Drive6 Speed 6 Speed
Chassis
Frame TypeSpace frame in chrome -molybdenum steel tubes Subframe: steelAluminum perimeter frame
Suspension - Front38 mm WP upside-down forkø41 mm Upside down fork
Suspension - RearWP monoshock.Asymmetric swingarm with monoshock
Steering Head Angle65°-
Wheel Travel - Front160 mm / 6.2 in110 mm / 4.3 in
Wheel Travel - Rear160 mm / 6.2 in130 mm / 5.1 in
Electronics
ECU-Magneti Marelli MIU G3, Ø32 mm
Wheels & Brakes
Brakes - FrontSingle 280 mm discSingle Ø300 mm disc, 4 piston caliper
Brakes - RearSingle 220 mm discSingle Ø218 mm disc, 1 piston caliper
Tyres - Front110/70 -17110/80 -17
Tyres - Rear150/60 -17130/70 -17

Verdict

Winner on specs

2014 KTM 125 Duke

The 2014 KTM 125 Duke edges out the 2013 Aprilia RS4 125 thanks to its higher torque, 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

2014 KTM 125 Duke - Advantages

  • Higher torque: 12 Nm vs 11 Nm - more pulling power across the rev range.
  • More rear wheel travel: 160 mm vs 130 mm - absorbs bigger hits and rough terrain better.
  • More front wheel travel: 160 mm vs 110 mm - greater compliance over rough surfaces.

2013 Aprilia RS4 125 - Advantages

  • Competitive all-round: The 2013 Aprilia RS4 125 matches or exceeds its rival across all measured criteria.

2014 KTM 125 Duke vs 2013 Aprilia RS4 125 - FAQs

Which should I buy, the 2014 KTM 125 Duke or the 2013 Aprilia RS4 125?
Both are strong choices. The 2014 KTM 125 Duke has the edge in higher torque and higher rear wheel travel, while the 2013 Aprilia RS4 125 offers a compelling alternative. 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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