Aprilia RS125 - 2026 Specifications and Reviews

The 2026 Aprilia RS125 is an entry-level sportbike designed for new riders and commuters seeking an agile, lightweight machine. Known for its responsive handling and accessible performance, it combines Italian sport styling with practical everyday usability. The RS125 excels as a learner bike and urban commuter thanks to its manageable power delivery and efficient fuel consumption.

2026
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General information

Color OptionsSpace White, Aprilia Black, GP Replica Black
CategorySport
Year2025

Engine and Transmission Specifications

StartingElectric
Emission DetailsEuro 5
Emission60.3 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel Consumption2.60 litres/100 km (38.5 km/l or 90.47 mpg)
ClutchMultiple discs, in oil bath
Final DriveChain (final drive)
Gearbox6-speed
Cooling SystemLiquid
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
Valves Per Cylinder4
Bore x Stroke58.0 x 47.0 mm (2.3 x 1.9 inches)
Compression Ratio12.6:1
Max Torque11.2 Nm (1.1 kgf-m or 8.3 ft.lbs) @ 8000 RPM
Max Power14.8 HP (10.8 kW)) @ 10000 RPM
Engine TypeSingle cylinder, four-stroke
Capacity:124.2 ccm (7.58 cubic inches)
 
 

Physical measures and capacities

Fuel Capacity14.50 litres (3.83 US gallons)
Wheelbase1350 mm (53.1 inches)
Overall Width760 mm (29.9 inches)
Overall Length1968 mm (77.5 inches)
Overall Height1135 mm (44.7 inches)
Seat Height820 mm (32.3 inches) If adjustable, lowest setting.
Wet Weight144.0 kg (317.5 pounds)

Aprilia RS125 dimensions and frame

WheelsAluminium alloy rims
Rear BrakesSingle disc. ABS. Stainless steel disc and calliper with single 30 mm piston.
Brake Disc Diameter220 mm (8.7 inches)
Front BrakesSingle disc. ABS. Stainless steel disc with radial 4 piston calliper
Rear Tyre140/70-ZR17
Front Tyre100/80-17
Rear Wheel Travel120 mm (4.7 inches)
Rear SuspensionAsymmetrical swingarm, monoshock absorber
Front Wheel Travel110 mm (4.3 inches)
Front SuspensionUpside down hydraulic fork, 40 mm.
FrameAluminium perimeter

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Update specsReport missing specs or required updates.
InstrumentsDigital
Reserve fuel capacity3.50 litres (0.92 US gallons)
DrivelineFinal drive ratio 13/58
Lubrication systemWet sump
Motorcycle nameAprilia RS 125

Performance Profile & Rider Fit

14.8 hp
Peak Power
12.5s
0-60 mph

Best For

Track55%
City80%
Cornering80%
Daily Riding55%
Touring25%
Passenger20%

Rider Profile

Best ForIdeal for new or learner-permit riders taking their first steps on a proper sportbike-styled machine.
PurposeBuilt for lightweight sporty fun, commuting, and learning sharp cornering technique rather than outright speed.
Rider FitIts light 144 kg wet weight and low-ish seat height make it easy to manage for smaller or less experienced riders.
CharacterA nimble, high-revving single-cylinder sportbike that rewards momentum-carrying, corner-focused riding over brute power.
Not Ideal ForNot suited for riders wanting highway overtakes, long-distance touring comfort, or carrying a passenger regularly.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2026 Aprilia RS125 Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 820mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with balls of both feet on the 2026 Aprilia RS125, with a cramped knee angle of around 70 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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