Maker

of sprin-tcar / XC crosscar

PLANET MOTORSPORT is the manufacturer of the K3, the first crosscar to receive FIA homologation.

With the K3, enjoy a customizable and adaptable crosscar for everyone! FIA homologated and backed by 7 years of competition experience and 2 European championship titles, the K3 is constantly evolving in both reliability and performance, thanks to valuable feedback from our customers and Planet Motorsport drivers. Join the K3 family of over 200 drivers and take your place in the race!

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Our craftsmanship, your victory

PLANET MOTORSPORT is the manufacturer of the K3, the first crosscar to receive FIA homologation.

From a self-assembly kit to build in your garage to a ready-to-race, turnkey crosscar ready to kick up dust on tracks worldwide, anything is possible! With a range of accessories to suit every budget but one unique chassis for all, we have something for everyone.

Got a tight budget, a passion for mechanics, and a desire to know every detail of your crosscar? The self-assembly kit is made for you! Short on time, worried about making mistakes, or just want to hit the track without any hassle? Leave it to us!

multi-tubular chassis

FIA-compliant

the K3 is a multi-tubular chassis fully complying with the standards set by the International Automobile Federation, with a final regulated weight of 330kg and 120hp in the top category.

Each crosscar has its own chassis number and a frame certificate.

Double wishbone front suspension with rocker arms

Shock absorbers well protected!

In addition to bringing the masses closer to the center of gravity, the "on-board" suspensions have a clear advantage: they protect your shock absorbers in the event of a collision!

Et croyez- nous il vaut mieux remplacer un pushrod qu’un amortisseur !

Multi-point rear arms

Adjustments, adjustments, adjustments!

The strength of the K3 comes from its multi-point rear suspension, providing significant lateral grip, giving the driver confidence—and confidence equals performance.
Five adjustable link rods on each side, allowing for tuning in all directions without disassembly to suit different driving styles, because everyone is different!
Six short link rods, four long ones, requiring only two spare parts for a controlled budget.

A wide range of shock absorbers

2-way, 3-way, 4-way, hydraulic bump stops?

Choosing the right shock absorbers is a crucial point, and we will guide you based on your preferences and budget.
We offer several brands such as EMC, P2S, FOX, and Ohlins, with multiple variations for each.
Whether you're a beginner or experienced with suspension settings, whether you have a tight budget or not, we have the shock absorbers that suit your needs!

Motorcycle engine

2, 3, or 4 cylinders!

The crosscar discipline is distinguished by the number of categories it encompasses, allowing for progression from one category to another simply by changing the engine.

A strong point of the K3 is that the engine mounts are fully interchangeable without the need for "cutting, welding, or repainting."

In the French championship, for example, you can start at 12 years old with a restricted Kawasaki ER6, and then move up to the next category at 16 by simply unrestricting the engine or swapping it for a Yamaha MT-07. Why not jump straight into the top category? This category allows you to choose between four engines: the Yamaha MT-09, Yamaha R6, Suzuki 600GSX-R, or the Kawasaki ZX6R. There's even a 100% women's version of this category!

This is just a non-exhaustive list, as each country has its own championships and categories, leading all the way to the top of the ladder: the European Championship!