Supermotos
2021Aprilia SX 50
37 fields on record
The 2021 Aprilia SX 50 is a supermoto-styled 50cc learner bike from the Italian brand Aprilia. Its liquid-cooled two-stroke single drives a six-speed gearbox and chain. An 820 mm seat, 99 kg wet weight and road tyres make it a sporty choice for young riders.
- Capacity
- 50.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Wet weight
- 99.0 kg
- Seat height
- 820 mm
- Power
- 5.4 HP (4.0 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- 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 usRange and running costs
Worked out in your browser - nothing is sent to usBased on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.
Engine
- Capacity
- 50.0 ccm
- Power
- 5.4 HP (4.0 kW)
- Torque
- 3.2 Nm (0.3 kgf-m) @ 4000 RPM
- 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
- 39.9 x 40.0 mm
- Compression
- 11.5:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- CDI
- Lubrication system
- Separate mixing with mechanical oil pump
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet 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
Specs last verified against published sources: .
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 | 2007 | 2011 | 2015 | 2018 | 2021 | 2022 |
|---|---|---|---|---|---|---|
| Capacity | 50 cc | 50 cc | 50 cc | 49 cc | 50 cc | 50 cc |
| Seat height | 830 mm | 830 mm | 830 mm | 820 mm | 820 mm | 860 mm |
| Fuel capacity | 7 L | 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
Common questions
What is the engine size of the Aprilia SX 50?
The 2021 Aprilia SX 50 has a Capacity of 50.0 ccm (3.05 cubic inches).
What engine power does the Aprilia SX 50 have?
The 2021 Aprilia SX 50 has a Power of 5.4 HP (4.0 kW).
How many gears does the Aprilia SX 50 have?
The 2021 Aprilia SX 50 has a Gearbox of 6-speed.
What is the torque of the Aprilia SX 50?
The 2021 Aprilia SX 50 has a Torque of 3.2 Nm (0.3 kgf-m or 2.4 ft.lbs) @ 4000 RPM.
How much does the Aprilia SX 50 weigh?
The 2021 Aprilia SX 50 has a Wet weight of 99.0 kg (218.3 pounds).
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