14 August. Friday 2026
Aprilia RX 125 - 2013 Specifications and Reviews
The 2013 Aprilia RX 125 is a lightweight enduro machine powered by a nimble Rotax two-stroke engine, delivering 21.5 horsepower and capable of 120 km/h. Designed for younger riders and beginners seeking entry-level off-road capability, it combines accessible performance with liquid-cooled reliability and a practical six-speed transmission. The RX 125 is best known for offering genuine dirt bike character in a manageable, affordable package that bridges the gap between pocket bikes and larger adventure machines.
2013
General information | |
| Category | Enduro / offroad |
| Year | 2013 |
| Model | Aprilia RX 125 |
| | |
Engine and Transmission Specifications | |
| Clutch | Multi-plate wet clutch. |
| Transmission type,final drive | Chain |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Lubrication system | Separate mixing with variable displacement, volumetric pump. |
| Fuel system | Carburettor. Dell’Orto VHST 28 |
| Bore x stroke | 54.0 x 54.5 mm (2.1 x 2.1 inches) |
| Compression | 12.5:1 |
| Top speed | 120.0 km/h (74.6 mph) |
| Torque | 16.00 Nm (1.6 kgf-m or 11.8 ft.lbs) @ 9750 |
| Power | 21.46 |
| Engine details | Rotax 122 engine |
| Engine type | Single cylinder, two-stroke |
| Capacity: | 124.00 ccm (7.57 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Wheels | Front wheel Aluminium, 1.6x21”. Rear wheel Aluminium, 2.15x18”. |
| Rear brakes diameter | 220 mm (8.7 inches) |
| Rear brakes | Single disc |
| Front brakes diameter | 260 mm (10.2 inches) |
| Front brakes | Single disc |
| Rear tyre dimensions | 150/60-17 |
| Front tyre dimensions | 110/70-17 |
| Rear suspension | Steel swingarm. Hydraulic monoshock with piggy back cylinder. Wheel travel 270 mm. |
| Front suspension | 40 mm upside down hydraulic fork. Wheel travel 260 mm. |
| Frame type | High strength steel frame with double trellis beam and double cradle. Detachable seat frame. |
| | |
Physical measures and capacities | |
| Reserve fuel capacity | 1.30 litres (0.34 gallons) |
| Fuel capacity | 10.00 litres (2.64 gallons) |
| Wheelbase | 1,480 mm (58.3 inches) |
| Overall width | 850 mm (33.5 inches) |
| Overall length | 2,165 mm (85.2 inches) |
| Overall height | 1,412 mm (55.6 inches) |
| Seat height | 830 mm (32.7 inches) If adjustable, lowest setting. |
| Power/weight ratio | 0.1850 HP/kg |
| Dry weight | 116.0 kg (255.7 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Color options | White |
| Starter | Kick |
Performance Profile & Rider Fit
15 hp
Peak Power
74.6 mph
Top Speed
Best For
Track10%
City45%
Cornering55%
Daily Riding40%
Touring20%
Passenger15%
Rider Profile
| Best For | Well suited to beginner and learner riders thanks to its light weight, low power, and manageable seat height. |
| Purpose | Designed primarily for light trail riding, green-laning, and off-road learning rather than speed or distance. |
| Rider Fit | Its low dry weight and tall but slim enduro seat make it easy to manage for smaller or less experienced riders once moving, though the seat height can challenge shorter riders at a stop. |
| Character | A nimble, playful small-capacity enduro that rewards momentum and finesse over outright power. |
| Not Ideal For | Not suited for riders wanting high-speed touring, motorway cruising, or carrying a passenger in comfort. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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