Sun Trip , Sun Trip: the world on solar bikes!
The Sun Trip The Solar Bike Adventure
Adventurers on solar bikes choosing their course through Eurasia. Inspired by unassisted yacht races around the world, the Sun Trip is writing a new page in the world of overland adventures.

The Sun Trip is a showcase for new forms of mobility. Each adventurer is an ambassador of solar energy and eco-mobility, proving their efficiency and their humanist dimension.
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Chantal & Olivier Guyot

Chantal & Olivier Guyot

Nationality Française

The solar bike of Chantal & Olivier

Motor Two GrinTech.eu MAX45 hub motors.
Solar 500 Wp of solar panels while riding (and even more when stationary).
Battery 2kWh
Weigt ~130kg
The VéLorean is a two-seat solar-electric pedal-powered quadricycle inspired by the DeLorean from Back to the Future. It was designed and is handcrafted in France (3D design, chassis and bodywork by LGZ.bike; electric drive system and solar integration by Grintech.eu).

This prototype is the result of carefully balancing several key objectives:

excellent stability and safety (a four-wheeled vehicle with a low center of gravity),
limited weight,
a large flat solar surface while minimizing the impact on aerodynamics and aesthetics,
an efficient motor system with enough torque for mountain terrain,
and a unique design that, we hope, will bring back fond cinematic memories for everyone.

It was Olivier’s youngest son who came up with the name “VéLorean” — a blend of vélo (the French word for bicycle) and DeLorean 🙂

Mother and son will pedal side by side, powered solely by their own muscle power and the solar energy generated by Mr. Fusion (our Sun).
Chantal & Olivier Chantal & Olivier
Copyright - 2026
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