Introduction

Aprilia - Leonardo 125 (2001, ZD4MB03)

The Aprilia Leonardo 125 (model code ZD4MB03) is a versatile 125 cc scooter from the early 2000s generation of the Leonardo series. It combines everyday practicality with solid engineering and appeals to riders looking for a reliable, comfortable, and lively vehicle for urban and suburban use.
As part of the continued development of the Leonardo lineup, this model received updates in design, engine performance, and comfort to meet contemporary expectations.

Model History

The Leonardo series was introduced in the mid-1990s and continuously improved over the years. Between 1999 and 2001, the model code ZD4MB03 was in use. In 2001, the Leonardo already featured an advanced engine, refined bodywork, and modern ride characteristics — as a precursor to the later “ST” version, which introduced a restyled front design that same year. With the ZD4MB03, Aprilia continued positioning the Leonardo as a well-rounded scooter with balanced handling and a confident character.

Technical Details

The Leonardo 125 ZD4MB03 is powered by a **liquid-cooled single-cylinder four-stroke engine** with a displacement of approx. 124 cc.
The output is around **11 hp (≈ 8 kW)** at 8,500 rpm.
The engine uses a carburetor and is paired with a continuously variable transmission (CVT).
Top speed is approx. **100 km/h**.
Dry weight is estimated at **130 kg**.
Fuel tank capacity is around **9.5 litres**.

Chassis and Brakes

The frame is a sturdy tubular steel construction, ideal for daily use and occasional long-distance trips.
At the front, a telescopic fork provides suspension, while the rear features a swingarm with shock absorber for comfort and stability.
The braking system consists of a **220 mm disc brake at the front** and a **drum brake at the rear**, which was typical for this generation.
Tire sizes are **120/70‑12 front** and **140/70‑12 rear**.

Colour Variants

The Leonardo 125 (ZD4MB03) was offered in classic colours such as black, silver, blue, and red, depending on the market.
Graphics and decals varied slightly by year and region, although no officially confirmed special editions are documented.
Many owners equipped their Leonardo with accessories like top cases, windshields, or comfort seats to increase its versatility.