Discover the Multipath: Ultima Mobility’s Lightweight Electric Bike

We often talk about lightweight electric bikes by looking at only one number: their weight. It can be 15 kg, 20 kg, 25 kg, and then we compare, classify, and make lists.

But the truth is, weight isn't the main argument. What lightweight electric bikes truly change is how we experience cycling daily: more autonomy in our actions, more freedom in our journeys, fewer physical and logistical constraints.

So, in reality, it's not the weight that matters, it's what it enables.

Why Everyone Talks About Lightweight Electric Bikes (Without Ever Explaining Their Real Impact)

Electric bikes make urban mobility easier, but many remain too heavy for truly fluid daily use. E-bike users therefore face several problems:

• Fatigue from carrying an electric bike up stairs

• Difficulty maneuvering a heavy electric bike on a crowded bike path (in the city)

• Stress of having to park a heavy electric bike (around 28kg) in a too-tight room or space

• Additional difficulty for older people, those of small stature, and beginners

That's why at Ultima, we wanted to change the game: deeply understand your needs and create a bike that adapts to your daily life. Weighing 21 kg, our Multipath meets all situations: a lightweight electric bike, powerful, durable, and recyclable, entirely designed for the city.

Who Are Lightweight Electric Bikes For?

As you can imagine, it's not the sporty cyclist who needs a lightweight electric bike the most, but rather someone who would never have bought a bike if it weren't light. Several types of profiles will naturally gravitate towards this type of bike:

• People who regularly climb stairs (very frustrated when it comes to carrying heavy bikes)

• Elderly people or those with pain

• Beginners who may be intimidated by heavy electric bikes

• Users who often transport their bike (train, elevators, etc...)

• People who want a bike that is easy and quick to get used to

  
  
  

How Did We Achieve 21 kg at Ultima?

This exceptional weight is the result of a unique combination of Ultima's patented technologies and a completely redesigned approach to optimize every gram.

A Monocoque Frame Injected with Recycled Carbon and a Polyamide Matrix

The Multipath uses an injection-molded monocoque frame, made from recycled carbon and a polyamide matrix.

This patented Ultima technology offers:

• exceptional structural rigidity

• a major weight reduction

• natural vibration dampening

• low environmental impact manufacturing

And most importantly: the frame is fully recyclable at the end of its life, in line with Ultima's commitment to more circular mobility.

An Integrated, Lightweight, and Perfectly Balanced Battery

The battery is directly integrated into the frame, ensuring reduced weight, perfect balance, and optimized range for urban travel.

The Valeo Motor with Integrated Automatic Gearbox

The heart of the Multipath is one of the most advanced propulsion systems on the market:

• High-performance Valeo motor

• Integrated automatic gearbox (no derailleur, no adjustments, everything is automated)

• Smooth and ultra-responsive assistance

• Intelligent energy consumption optimization

• Total simplicity: the motor automatically manages gears for always optimal riding

This integrated motor + transmission not only reduces overall weight but also offers a more intuitive, efficient, and reliable riding experience.

Components Designed for Lightness

Every element: wheels, brakes, cockpit, is chosen to maximize performance without adding unnecessary weight to the bike. The result: a bike that remains agile, stable, and extremely pleasant to ride.

Why Does a 100 km Range Electric Bike Generally Weigh Much More?

As Colin Chapman said, "light is right."

To achieve approximately 100 km of range, an electric bike needs a battery weighing 6 to 8 kg, which brings the total weight to an average of 27 - 29 kg. Ultima's Multipath makes a clear choice: prioritize lightness, agility, and urban comfort, rather than extreme range that is unnecessary for most daily journeys.

What the Lightness of Your Electric Bike Truly Changes About Your Daily Experience

Advantages of Lightweight Electric Bikes

A lighter electric assist bike brings real daily advantages. It's not just easy to carry; it's your entire way of using your bike that changes, and the quality of your experience with it!

• Easier transportation and reduced effort: going up a few steps, overcoming an obstacle, or loading your bike alone onto a bike rack finally becomes simple. Daily micro-movements are no longer a hindrance.

• More dynamic riding: with less mass to move, the Valeo motor and its automatic gearbox react faster. The bike responds better, accelerates more naturally, and gives you an immediate feeling of fluidity.

• Instant maneuverability: you feel much less constrained, much freer, and this allows you to make more fluid and informed decisions on the road (to turn, start, or avoid a pedestrian). Ultimately, this also significantly reduces the risk of accidents.

• Greater motivation to use it every day: if you live in an apartment, especially on the top floor without an elevator, the difference is enormous. The lightness changes everything: you take the bike out more often and without apprehension.
  

However, an electric bike is only practical if it is well-balanced. In other words, you shouldn't reduce the bike's weight just for the sake of it; it needs to be intelligently optimized.

A Bike Designed to Last… and Be Recycled

Thanks to its monocoque frame made from recycled carbon and recyclable polyamide, the Multipath is part of a rare sustainable approach in the electric bike sector. At the end of its life cycle, its material can be reused, which drastically limits its environmental impact.

In a Nutshell…

A lightweight electric bike is not just an object. It's a daily enabler. It's a bike you grab without thinking, because it removes everyday obstacles. And that's why it changes life more than a powerful or ultra-equipped bike.

With its monocoque frame made of recycled carbon, its Valeo motor with an integrated automatic gearbox, and its feather weight of 21 kg, the Ultima Multipath redefines the modern electric bike: lightweight, powerful, durable, and recyclable.

While long-range electric bikes generally exceed 28 kg, our Multipath offers you the perfect balance: more maneuverable, simpler, more enjoyable.

For those who wish to better understand the technology behind this frame, a detailed appendix is available below 👇