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Supermotos

2018Aprilia SX 50

★ 3.8
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The 2018 Aprilia SX 50 is an entry-level sport motorcycle designed for young riders and beginners seeking an aggressive styling package. Known for its lightweight, nimble handling and accessible 50cc performance, it delivers genuine sportbike character in a learner-friendly platform. The compact dimensions and manageable 99kg weight make it ideal for developing fundamental riding skills with confidence.

Capacity
49.0 ccm
Engine
Single, two-stroke
Gearbox
6-speed
Wet weight
99.0 kg
Seat height
820 mm
Power
5.4 HP (4.0 kW)

What’s new for the 2018 Aprilia SX 50

vs the 2017
Spec20172018
Engine capacity 50.0 ccm (3.05 cubic inches) 49.0 ccm (2.99 cubic inches)
Power 6.0 HP (4.4 kW) 5.4 HP (4.0 kW)
Seat height 830 mm (32.7 inches) 820 mm (32.3 inches)
Front suspension 40 mm hydraulic fork with leading axle. Telescopic hydraulic fork with Ø 37 mm stanchions
Rear suspension High strength steel swingarm; Hydraulic monoshock. Swingarm in high resistance steel. Hydraulic monoshock absorber
Front brakes Single disc. Stainless steel disc, floating caliper. Single disc. Floating calliper
Rear brakes Single disc. Stainless steel disc, caliper with two opposing pistons. Single disc. Floating calliper
Wheelbase 1406 mm (55.4 inches) 1365 mm (53.7 inches)
Other years 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 16Agility 88Comfort 40Off-road 45Touring 15Road manners 55
Off-road & trail45%
Cornering80%
City riding75%
Daily riding45%
Touring15%
Two-up20%
Track55%
Best for
Built as a lightweight supermoto-styled 50cc machine for playful street riding, learner training, and short sporty jaunts rather than serious performance.
Built for
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.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

Worked out in your browser - nothing is sent to us
At 820mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with balls of both feet on the 2018 Aprilia SX 50, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Full specifications

Engine
Capacity
49.0 ccm
Power
5.4 HP (4.0 kW)
Engine type
Single, two-stroke
Fuel consumption
3.10 litres/100 km (32.3 km/l)
Power/weight ratio
0.0545 HP/kg (wet)
Bore x stroke
40.0 x 39.3 mm
Compression
11.5:1
Cooling system
Liquid
Fuel system
Carburettor
Starting
Kick
Ignition
CDI
Lubrication system
Separate mixing with mechanical oil pump
Torque
Not on record - add it
Transmission
Gearbox
6-speed
Transmission type
Manual
Final drive
Chain
Clutch
Multi-plate
Dimensions & weight
Wheelbase
1365 mm
Overall length
2020 mm
Overall width
830 mm
Overall height
1120 mm
Seat height
820 mm
Wet weight
99.0 kg
Fuel capacity
7.00 litres
Dry weight
Not on record - add it
Chassis & suspension
Frame
Twin tube, steel
Front suspension
Telescopic hydraulic fork with Ø 37 mm stanchions
Rear suspension
Swingarm in high resistance steel. Hydraulic monoshock absorber
Front wheel travel
170 mm
Rear wheel travel
200 mm
Brakes & wheels
Front brakes
Single disc. Floating calliper
Front brakes diameter
260 mm
Rear brakes
Single disc. Floating calliper
Rear brakes diameter
260 mm
Front tyre
100/80-17
Rear tyre
130/70-17
Other
Color options
Black/red

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted
Specification 20072011201520182022
Capacity 50 cc 50 cc 50 cc 49 cc 50 cc
Seat height 830 mm 830 mm 830 mm 820 mm 860 mm
Fuel capacity 7 L 7 L 7 L 7 L 7 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Rider Reviews

3.8
★★★★☆
Rider rating
MotorcycleDB Review

The 2018 Aprilia SX 50 is a sleek and stylish motorcycle that offers impressive performance and handling. With a 50cc engine, this bike is perfect for urban exploration and city commutes. The lightweight design and agile maneuverability make it a joy to ride, while the sporty styling is sure to turn heads wherever you go. Whether you're a beginner rider looking for a reliable and easy-to-handle bike, or a seasoned motorcyclist in need of a nimble urban ride, the Aprilia SX 50 is a fantastic choice.

Overall, the 2018 Aprilia SX 50 is a fantastic motorcycle that offers great value for its price. From its sporty design to its responsive handling, this bike is a great option for anyone in the market for a reliable and stylish urban ride. Plus, with its 50cc engine, it's also an ideal choice for new riders looking to gain experience on the road. If you're in the market for a compact and efficient motorcycle, the 2018 Aprilia SX 50 is definitely worth considering.

Common questions

What is the engine size of the Aprilia SX 50?

The 2018 Aprilia SX 50 has a Capacity of 49.0 ccm (2.99 cubic inches).

What engine power does the Aprilia SX 50 have?

The 2018 Aprilia SX 50 has a Power of 5.4 HP (4.0 kW).

How many gears does the Aprilia SX 50 have?

The 2018 Aprilia SX 50 has a Gearbox of 6-speed.

How much does the Aprilia SX 50 weigh?

The 2018 Aprilia SX 50 has a Wet weight of 99.0 kg (218.3 pounds).

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