2011–2017 · Scooter · Buyer's Guide
The Purist's Manual Shift
The PX 150 is the manual-shift Vespa in its purest form: a steel monocoque body, an air-cooled 150 cc two-stroke single and a four-speed gearbox you shift by twisting the handlebar grip. This generation meets Euro 3 and stays true to the classic P-series design without dressing it up. There's no ABS, no traction control, no ride modes and no USB port. You get 8 hp, 8 lb-ft and a 247 lb (112 kg) scooter that fits through gaps a car driver wouldn't even notice. It's built for purists who want vintage character and mechanical simplicity, not modern tech. That's the whole point!
In town it's in its element. It's light, compact and dead easy to place, and it feels special every time you park it. Top speed is 54 mph (87 km/h), and I wouldn't go chasing it: this engine doesn't like being held flat-out for long stretches, and piston seizure under sustained full throttle is a known problem. Add front brake shudder, a carburetor that can weep fuel and spark plugs that foul with carbon, and you know what you're signing up for. Low running costs and strong aftermarket potential help. You still have to want a hands-on relationship with your scooter. Buy it with your heart, maintain it with your head.
Spec sheets don't ride bikes, but they set the baseline.
| Power | 8 hp (5.8 kW) |
|---|---|
| Torque | 8 lb-ft (11 Nm) |
| Displacement | 150 cc |
| Engine | Single-cylinder |
| Cooling | Air-cooled |
| Gearbox | 4-speed |
| Front tire | 3.50-10 |
| Rear tire | 3.50-10 |
| Wheelbase | 49.6 in (1260 mm) |
| Seat height | 31.7 in (805 mm) |
| Wet weight | 247 lb (112 kg) |
| Fuel capacity | 2.1 gal (8 L) |
| Top speed | 54 mph (87 km/h) |
I've heard a lot from PX 150 owners over the years: in the paddock, at club nights, over coffee after a ride, and in the messages riders send me directly. When you put all that talk together, the picture is split. Owners like how easy it is to learn and to wrench on. The complaint that keeps coming up is how well it holds together.
Riders who had never shifted a manual before say the clutch and four-speed box make it easy to pick up. Once it clicks, they enjoy how involved the ride feels. Some owners also like that there's so little on it to go wrong: a carbureted two-stroke and basic mechanics you can work on yourself. Nothing hidden.
Build quality is the most consistent gripe. Several owners describe cheap components and frequent failures, and they say it doesn't last as well as older Vespas or other Vespas of its day. A few riders say the Euro 3 tune makes the engine feel flat, with sluggish pickup and lazy throttle response off the line. Others say the rear drum brake doesn't stop hard enough. That's the other side.
Front disc brake shudder and instability
Severe vibration through the front end under braking, described as massive shuttering that compromises rider confidence and safety.
Piston seizure at sustained highway speeds
Engine failures occur when ridden flat-out for extended periods; the piston seizes, resulting in a sudden loss of power and potential crash risk.
Widespread reliability problems across multiple systems
Owners consistently report a litany of failures involving the engine (seizures, power loss), electrics (ignition gremlins), and brakes (shudder, poor modulation). Build quality is universally panned as a steep decline from older Vespa standards.
Fuel leak from carburetor body
Some units develop a persistent fuel weep at the carburetor flange, which even multiple warranty repairs often fail to fix permanently.
Fouled spark plugs from carbon buildup
The two-stroke tuning under Euro 3 causes excessive carbon that coats the spark plug ceramic, leading to misfires and hard starting.
Where this Vespa PX 150 pulls ahead of — or falls behind — its rivals on the numbers, and the typical bike in its class on character.
Power
Torque
Displacement
Wet weight
Top speed
Seat height
Forget spec-sheet bragging. Here's who the PX 150 is actually built for.
If your day is short hops, tight parking and dense traffic, this fits beautifully. Just accept that it wants a hand on the shifter and an owner who doesn't mind the occasional wrench.
Made for New York City · Austin · Los Angeles
At the café meet and the photo stop, it's pure charm. With 8 hp and 54 mph on tap, ride the ridge roads gently and never flat-out for long. It's a stylish city piece, not a weekend canyon tool.
Made for San Francisco Bay Area · Skyline Boulevard · Big Sur Coast Highway