For 2010 Aprilia's US importer added the two-stroke Sportcity One as the '50 Street', sold alongside the four-stroke One 50 and One 125.
| MODEL | APRILIA SPORTCITY ONE 50 STREET 2010 |
| Year | 2010 |
| Engine Type | Single cylinder, two-stroke (Hi-PER2) |
| Displacement / Capacity | 49.4 cc / 3.0 cu in |
| Bore X Stroke | 40 x 39.3 mm / 1.57 x 1.55 in |
| Compression Ratio | 10.3:1 |
| Cooling System | Air cooled |
| Max Power | 3 kW / 4 hp @ 6500 rpm |
| Max Torque | 4.4 Nm / 3.2 lb-ft @ 6500 rpm |
| Ignition | Electronic inductive discharge ignition with variable advance |
| Induction | Dell'Orto 17.5 mm carburettor |
| Start System | Electric & kick |
| TRANSMISSION SPECS | |
| Lubrication | Separate oil mixer with mechanical pump |
| Gear Box | Automatic CVT (variator) |
| Clutch | Automatic centrifugal dry clutch |
| Final Drive | Belt |
| CHASSIS SPECS | |
| Frame | Single cradle frame in high strength steel tube |
| Front Suspension | Telescopic fork, 85 mm / 3.3 in travel |
| Rear Suspension | Engine unit acting as swingarm, single shock with adjustable spring preload, 76 mm / 3.0 in travel |
| Front Brakes | Single 220 mm disc |
| Rear Brakes | 140 mm drum |
| DIMENSION SPECS | |
| Overall Length | 1948 mm / 76.7 in |
| Overall Width | 729 mm / 28.7 in |
| Overall Height | — |
| Seat Height | 775 mm / 30.5 in |
| Wheelbase | 1355 mm / 53.35 in |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | 106 kg / 233.7 lbs |
| WHEEL SPECS | |
| Front Tyre | 120/70-14 |
| Rear Tyre | 120/70-14 |
| FUEL SYSTEM | |
| Fuel Capacity | 7 Litres / 1.85 US gal |
| Fuel Consumption | — |
| Top Speed | — |
For 2010 Aprilia's US importer added the two-stroke Sportcity One as the '50 Street', sold alongside the four-stroke One 50 and One 125. Its Hi-PER2 engine gave it noticeably livelier acceleration than the four-stroke 50, while the compact 14-inch-wheeled chassis, 220 mm front disc and rear drum were shared with the rest of the One family. It was offered for a single season only.
