Meet César Ferreira – CTO
Tell us about your career.
I’ve been designing and building motorcycles my all career. I never did anything else over a decade now. From early engine and chassis work at AJP Motos, to leading platform and full-vehicle projects at KTM, to helping Stark bring their prototype into mass production, I’ve seen the full cycle of what it takes to bring a motorcycle from concept to factory floor several times and in different contexts.
What mistakes have you seen that most startups make?
Disruption does not necessarily mean success. Very often startups consider that being different is enough. Differentiation is key and catches attention, but the way a motorcycle is used as a vehicle didn’t evolve much in the last decades. So, the process of building a motorcycle should not result into a gimmick.
Another mistake is thinking that a rolling prototype equals a successful product. Many prototypes are impressive, but they’re built in ways that don’t scale: Materials, suppliers, assembly methods. When it comes time to mass-produce, compromises pile up, and the product delivered to the rider isn’t as expected. Most of the times specs, cost and delivery time disappoints the costumers. At Flux, we’re designing every part with scalability in mind from day one. That means riders will get the real bike the performance we prove now is the performance we’ll deliver.
What’s the most important technical challenge Flux has solved so far?
The drivetrain. Everyone in the electric vehicle industry knows it’s the weak link. Instead of buying off the shelf, Flux built a 7.9 kWh, 450V pack from scratch, 432 wirebonded cells, bottom-cooled, and managed by our own BMS. It gives us class-leading energy density, minimal weight, and most importantly: sets the right expectations for our customers.
What excites you most about Flux’s technology?
Many companies have one strength: powerful drivetrain, or smart connectivity, or lightweight chassis. However, as I quite often and annoyingly say to my fellow college engineers, my goal is not developing and produce the best battery, the best motor or the best chassis, my goal is developing and produce the best motorcycle.
Flux brings them all together. An 85 HP drivetrain that actually delivers, intelligence that reacts 100 times per second, a chassis designed for racing from the ground up. As an engineer, it excites me that there are no really weak points. That’s what makes this bike truly competitive and the next step for the industry.
How does your background at KTM and Stark shape your work at Flux?
At KTM, I learned how to break walls and move fast within a big organization, how to test and validate components/vehicles properly to enable building world-class motorcycles for mass production with precision. At Stark, I saw the raw ambition of a startup pushing electric forward. At Flux, I get to combine both: the discipline to scale and the agility to innovate. That’s what makes this project different, we’re not guessing, we’re building on proven experience while still moving fast.
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