What category is the 2017 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	2017

Engine and Transmission Specifications
Exhaust system	Catalytic converter
Emission details	Euro 2
Driveline	Primary drive: Gears. Ratio: 21/78. Final driverRatio: 11/53
Clutch	Multi-plate
Transmission type,final drive	Chain
Gearbox	6-speed
Cooling system	Liquid
Lubrication system	Automatic mixer
Ignition	Electronic C.D.I
Fuel system	Carburettor. Dell Ortho PVHA 17.5
Bore x Stroke	39.9 x 40.0 mm (1.6 x 1.6 inches)
Compression	11.5:1
Engine details	Light alloy cylinder
Engine type	Single cylinder, two-stroke

Category	Super motard
Model	Aprilia SX 50

Brakes, suspension, Frame and wheels
Wheels	Spoked wheels with aluminium rim.
Rear brakes diameter	180 mm (7.1 inches)
Rear brakes	Single disc. Stainless steel disc, caliper with two opposing pistons.
Front brakes diameter	300 mm (11.8 inches)
Front brakes	Single disc. Stainless steel disc, floating caliper.
Rear tyre	130/70-ZR17
Front tyre	110/80-ZR17
Rear wheel travel	180 mm (7.1 inches)
Rear Suspension	High strength steel swingarm; Hydraulic monoshock.
Front wheel travel	195 mm (7.7 inches)
Front Suspension	40 mm hydraulic fork with leading axle.
Frame type	Steel beam
Physical measures and capacities
Reserve fuel capacity	1.30 litres (0.34 gallons)
Fuel capacity	7.00 litres (1.85 gallons)
Wheelbase	1,406 mm (55.4 inches)
Overall width	825 mm (32.5 inches)
Overall length	2,045 mm (80.5 inches)
Seat height	830 mm (32.7 inches) If adjustable, lowest setting.
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Starter	Kick
Color options	Red/white/silver

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

Your height

Inseam (optional)

Units

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Feet:

At 830mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with balls of both feet on the 2017 Aprilia SX 50, with a relaxed knee angle of around 125 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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