MotoSpecs

2013 Aprilia RS4 125 vs 2014 KTM 125 Duke

Full specifications comparison • 2 motorcycles

Comparing 2 motorcycles
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
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
Full Specifications
General
Year2012 - 132013 - 14
Make ModelAprilia RS4 125KTM 125 Duke
Dimensions
Seat Height820 mm / 32.3 in810 mm / 31.8 in
Wheelbase1350 mm / 53.1 in1367 mm / 53.8 in
Ground Clearance-170 mm / 6.7 in
Height1138 mm / 44.6 in-
Length1953 mm / 76.8 in-
Width740 mm / 29.1 in-
Weights & Capacities
Dry Weight122 kg / 269 lbs127 kg / 280 lbs
Fuel Capacity14.5 Liters / 3.8 gal11 Litres / 2.9 US gal / 2.4 Imp gal
Performance
Max Power11.7 kW / 16 hp @ 10500 rpm11.3 kW / 15 hp @ 10500 rpm
Max Torque11 Nm / 1.12 kgf-m / 8.1 ft/lb @ 8500 rpm12 Nm / 1.22 kgf-m / 8.85 ft-lb @ 8000 rpm
Engine
Displacement124.8 cc / 7.6 cu in124.7 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 Ratio12.5 ± 0.5:114.5:1
Cooling SystemLiquid cooledLiquid cooled
EmissionsEuro 3-
Fuel InductionElectronic injectionElectronic fuel injection
IgnitionElectronic with CDI capacity discharge Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment
Lubrication-Forced oil lubrication with 1 Eaton pump
StarterElectricElectric
Drivetrain
ClutchMultiple discs, in oil bathMulti-disc clutch, operated hydraulically
Final DriveChainChain 5/8 x 1/4" X Ring
Gear Ratios1st 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 TypeAluminum perimeter frameSpace frame in chrome -molybdenum steel tubes Subframe: steel
Suspension - Frontø41 mm Upside down fork38 mm WP upside-down fork
Suspension - RearAsymmetric swingarm with monoshockWP monoshock.
Steering Head Angle-65°
Wheel Travel - Front110 mm / 4.3 in160 mm / 6.2 in
Wheel Travel - Rear130 mm / 5.1 in160 mm / 6.2 in
Electronics
ECUMagneti Marelli MIU G3, Ø32 mm-
Wheels & Brakes
Brakes - FrontSingle Ø300 mm disc, 4 piston caliperSingle 280 mm disc
Brakes - RearSingle Ø218 mm disc, 1 piston caliperSingle 220 mm disc
Tyres - Front110/80 -17110/70 -17
Tyres - Rear130/70 -17150/60 -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

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 - 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 vs 2014 KTM 125 Duke - FAQs

Which should I buy, the 2013 Aprilia RS4 125 or the 2014 KTM 125 Duke?
Both are strong choices. The 2013 Aprilia RS4 125 has its own strengths, while the 2014 KTM 125 Duke stands out for higher torque and higher rear wheel travel. 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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