Introduction

Aprilia Leonardo 125 ST (2001-2002, ZD4TB)

The Aprilia Leonardo 125 ST is a scooter from the Italian manufacturer Aprilia, produced between 2001 and 2002. This model belongs to the maxi-scooter category and represents an evolution of the original Leonardo series, which was introduced in 1996.
The Leonardo 125 ST was designed as a comfortable and powerful vehicle for urban and suburban use, targeting riders seeking a scooter with more power and comfort than typical 50cc models. The "ST" stands for "Sport Touring," indicating a focus on both sporty performance and touring capability.

Model History

Historically, the Aprilia Leonardo 125 ST belongs to the second phase of the Leonardo series, which began in 1996 with the Leonardo 125 (ZD4MB00). Aprilia, founded in 1945 by Alberto Beggio as a bicycle manufacturer, transformed under Ivano Beggio from the 1960s into a motorcycle producer and started scooter production in the 1980s through collaboration with Rotax, beginning with the Amico (1990).
Following models like the Gulliver and Rally, the Leonardo series was developed from 1996, with the ST version introduced in 2001 featuring a revised design and technical improvements. It stands between smaller scooters like the Amico and later maxi-scooters like the Atlantic, showcasing Aprilia's focus on versatile, powerful scooters before being acquired by Piaggio in 2004.

Technical Details

Technically, the Aprilia Leonardo 125 ST is equipped with a water-cooled 124cc four-stroke engine, delivering about 11 hp (approximately 8 kW) at 8,500 rpm. The engine is carbureted and paired with a continuously variable transmission (CVT) with a belt drive, allowing for easy operation. The top speed is around 100 km/h.
The frame consists of a sturdy steel tube construction, with suspension comprising a telescopic fork at the front and a swingarm with a shock absorber at the rear. The braking system includes a front disc brake (220 mm diameter) and a rear drum brake. With a dry weight of about 135 kg and a fuel tank capacity of 9.5 liters, the Leonardo 125 ST was robustly built and suitable for longer distances.

Color Options and Variants

The Aprilia Leonardo 125 ST was offered in several colors, including black, silver, blue, and red, with exact availability varying by market. This variety of colors emphasized the modern and appealing style of the scooter.
Official special models of the Leonardo 125 ST are not documented, but the Leonardo series was expanded during this time with variants like the Leonardo 150 and 250, which differed by having larger engines. For the years 2001-2002, Aprilia focused on the standard version of the ST, with optional accessories such as windshields or luggage racks available to adapt the scooter to the riders' needs.