What category is the 2019 Aprilia SX 50?

The Aprilia RX50 is essentially the same bike but with larger spoked wheels, off-road tyres, a smaller front disc and a 50mm higher seat. Both bikes can be limited for 16 year olds or derestricted to unlock the 50mph top speed.

The wire-spoked 17" wheel takes a 110/80 tyre at the front and 130/70 at the rear.

General information
Year	2019
Engine and Transmission Specifications
Emission details	Euro 4
Greenhouse gases	72.8 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel consumption	3.14 litres/100 km (31.8 km/l or 74.91 mpg)
Transmission type,final drive	Chain
Gearbox	6-speed
Cooling system	Liquid
Lubrication system	Separate mixing with mechanical oil pump
Ignition	CDI
Fuel system	Carburettor. Dell´Orto PHVA 17.5
Bore x Stroke	40.0 x 39.3 mm (1.6 x 1.5 inches)
Compression	11.5:1
Engine type	Single cylinder, two-stroke
Capacity:	49.00 ccm (2.99 cubic inches)

Category	Super motard
Model	Aprilia SX 50

Brakes, suspension, Frame and wheels
Wheels	Five spoke, light alloy wheels
Rear brakes diameter	260 mm (10.2 inches)
Rear brakes	Single disc. Floating calliper
Front brakes diameter	260 mm (10.2 inches)
Front brakes	Single disc. Floating calliper
Rear tyre	130/70-17
Front tyre	100/80-17
Rear wheel travel	200 mm (7.9 inches)
Rear Suspension	Swingarm in high resistance steel. Hydraulic monoshock absorber
Front wheel travel	170 mm (6.7 inches)
Front Suspension	Telescopic hydraulic fork with Ø 37 mm stanchions
Frame type	Twin tube, steel
Physical measures and capacities
Fuel capacity	7.00 litres (1.85 gallons)
Wheelbase	1,365 mm (53.7 inches)
Overall width	830 mm (32.7 inches)
Overall length	2,020 mm (79.5 inches)
Overall height	1,120 mm (44.1 inches)
Seat height	820 mm (32.3 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc	99.0 kg (218.3 pounds)

Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Starter	Kick
Color options	Black/red

Performance Profile & Rider Fit

Best For

Track55%

City75%

Cornering80%

Daily Riding45%

Touring15%

Passenger20%

Rider Profile

Best For	Best suited to young or novice riders, often pre-licence teens, learning throttle control and bike handling in a low-stakes environment.
Purpose	Built as a lightweight supermoto-styled 50cc machine for playful street riding, learner training, and short sporty jaunts rather than serious performance.
Rider Fit	Its featherweight 99 kg build and low-effort controls make it extremely easy to handle and flick around for smaller or lighter riders.
Character	A cheeky, nimble little supermoto that encourages flickable, energetic riding despite its modest two-stroke power output.
Not Ideal For	Not suitable for taller or heavier adults, highway commuting, or anyone wanting real straight-line speed or long-distance comfort.

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

Rider Fit Visualizer

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Inseam (optional)

Units

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Feet:

At 820mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with balls of both feet on the 2019 Aprilia SX 50, with a relaxed knee angle of around 120 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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