Capricorn Lab C04 Racing Kit – Built by Racers, Proven on Track
If you follow 1/10th nitro on-road racing, chances are you’ve already heard people talking about the Capricorn Lab C04. Since its release, it’s quietly built a reputation as a proper racer’s car — not flashy for the sake of it, but carefully refined where it actually matters: balance, consistency, and tuneability.
This is very much a kit aimed at drivers who enjoy the process as much as the racing. If you like understanding why a car feels the way it does and being able to change that feeling through setup rather than guesswork, the C04 is right in its comfort zone.
What the C04 Is Really About
At its core, the Lab C04 is a 1/10th scale nitro on-road competition chassis designed and built in Italy by Capricorn RC. It’s not an RTR and it doesn’t pretend to be beginner-friendly out of the box — this is a platform built for racers who want full control over how their car is assembled, set up, and evolved.
From the moment you open the box, it’s clear the focus has been on engineering and repeatability, not gimmicks.
Design Choices That Make Sense on Track
One of the things Capricorn does well is making changes that racers can actually feel:
7075 aluminium chassis gives a solid, predictable base without feeling dead on lower grip tracks
Movable weight system under the fuel tank, which sounds simple but makes a real difference over a fuel run
Wide rear geometry adjustment, with multiple insert positions to fine-tune rear grip and rotation
Front flex tuning options, allowing you to calm the car down or free it up depending on conditions
Everything feels like it’s there because someone tested it, not because it looked good in a CAD drawing.
Built for Tuning, Not Just Building
Once built, the C04 really comes alive during setup. Weight distribution, roll centres, camber link positions, flex — it’s all accessible and logical. You can make meaningful changes without completely upsetting the car, which is exactly what you want during a race weekend.
The steering is another highlight. Updated steering hubs allow for more lock and a smoother response, which pays off on tighter European-style layouts where precision matters more than outright aggression.
Racing Pedigree – Not Just a Club Car
Since its release, the Capricorn Lab C04 has proven itself at the highest levels of competition.
Across European Championship events and IFMAR World Championship meetings, the C04 has consistently appeared:
In A-final line-ups
On national and international podiums
As a regular choice for top-level Capricorn factory and supported drivers
Rather than being a one-event wonder, the C04 has shown it can perform across different track surfaces, grip levels, and race formats. That consistency is arguably more impressive than a single headline result — and it’s exactly what club racers benefit from week in, week out.
In short: this isn’t a car that looks fast on the bench and struggles over a final. It’s been raced, refined, and validated under real championship pressure.
The Build Experience (And Why It Matters)
The build is what you’d expect from Capricorn:
Clean machining
Well-thought-out parts layout
A build process that actually teaches you how the car works
That matters more than people realise. When race day comes and conditions change, knowing why your car reacts the way it does is a huge advantage.
Final Thoughts
The Capricorn Lab C04 Racing Kit isn’t trying to reinvent 1/10th nitro on-road racing — it’s doing something arguably harder: perfecting the fundamentals.
It’s a car for racers who value:
Predictable handling
Logical setup changes
Proven performance at national and international level
Whether you’re racing club finals or chasing bigger events, the C04 gives you a platform that won’t hold you back — and one that rewards time spent learning it.