Vespa Et4 150
The Vespa ET4 150 was introduced by Piaggio in 1996 as part of the modern ET series, marking Vespa's transition to a four-stroke engine scooter while retaining its iconic styling. It was notable for being one of the first Vespas to adopt a fuel-injected four-stroke single-cylinder engine, making it cleaner and more fuel-efficient than its two-stroke predecessors. The ET4 150 was sold until around 2005 and helped revitalize the Vespa brand among urban commuters worldwide.
11 hp
Power
11.7 Nm
Torque
115 kg
Weight
105 km/h
Top Speed
2.5 L/100km or approximately 40 km/L (typical real-world average)
Fuel
Faired
Body
What Buyers Should Know
Reliable Rotax Engine
The ET4 150 uses a Rotax-sourced 4-stroke engine, a significant upgrade over older 2-stroke Vespas, offering smoother power and lower maintenance costs. With proper oil changes, these engines routinely exceed 30,000 miles.
Watch the Carb & Fuel System
Ethanol-blended fuels can degrade the carburetor and fuel lines on older ET4s, causing hard starting and rough idling. Always inspect these components and budget for a carb clean or rebuild if buying a neglected example.
Strong Resale Value
The ET4 150 holds its value well due to the iconic Vespa brand and its transition-era status as a practical, modern classic. Clean examples in good condition typically sell for $1,500–$3,000 depending on mileage and cosmetics.
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Vespa Et4 150
