Italian design firm ARES is billing its high-tech carbon fibre e-bike, the Super Leggera, as a “world first”. We’re not exactly sure about that, but it certainly looks a lovely bike.

Indicating the technology at the heart of the design, the bike is officially titled the ARES Super Leggera by HPS.

ARES Super Leggera handlebars.jpg
ARES Super Leggera handlebars (Image Credit: ARES)

Monaco-based High Performance Systems (HPS) is the firm that developed the lightweight Watt Assist e-bike system.

This system has been integrated into the Super Leggera and allows the rider to get 200W of assistance from a bike that – in the words of ARES – “weighs the same as a top-of-the-range ‘traditional’ model.”

This isn’t quite true, of course. There is a very simple reason why e-bikes weigh more than unassisted bikes: they require a bunch of extra stuff.

ARES Super Leggera drivetrain.jpg
ARES Super Leggera drivetrain (Image Credit: ARES)

Motors, batteries and all the other e-bike paraphernalia unavoidably add weight. What can’t be denied, however, is that in this instance they’re adding relatively little. A 9kg e-bike is a very light e-bike indeed.

But is it the lightest?

Turns out we don’t have to look too far to find a lighter one. HPS’s own Domestique 1-21 weighs just 8.5kg. German innovators Freicycle, meanwhile, can build you a modified Merida Scultura with a specially developed friction drive motor concept that comes in at 6.872kg. That’s more of a custom thing though.

ARES Super Leggera 1.jpg
ARES Super Leggera 1 (Image Credit: ARES)

Back to the Super Leggera, the Watt Assist system houses its components close to the bottom bracket area to ensure a low centre of gravity and a sporty ride.

The electronics managing the motor and battery are hidden in the down tube, while the battery itself mimics the look and weight of a standard water bottle and is installed in place of the second bottle in a specially designed cage.

Two batteries are available: a 1.2kg 193Wh one that offers around three hours of assistance and a 720g 85Wh one – which is presumably the one in use when the bike weighs 9kg.

This first joint venture between ARES and HPS is a limited series of 24 bikes featuring handmade leather parts and round tube carbon fibre frames. Brace yourself though. Each one costs €18,950. They’re available in ARES showrooms in Italy, UAE, Austria, Switzerland, the United States, Germany, Spain and Monaco.

A second series of e-road bikes in a more modern style will follow later this month, followed by a top of the range city bike in December.