Modelix Racing, S.L is a company dedicated to researching, developing, manufacturing and distributing products to the world of Radio Control.
Modelix Racing was founded in 1999 and, between them; the partners have more than 25 years of experience in the Radio Control scene. Since the beginning, Modelix Racing has positioned itself in the RC industry through the acquisition of major distribution rights for high quality products, along with the release of competition products under our own brands: Ultimate Racing accessories, Procircuit tires and Nitrolux fuel.
Our main daily goal is to offer high performance racing products along with professional technical support to satisfy our customer’s needs. For this we have a team of passionate RC enthusiasts, with a lot of experience racing at the highest level of competition, who allows us to offer exceptional technical support responding to market needs.
Modelix Racing brands:

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Ultimate Racing: The Ultimate Racing brand of accessories was created in 1999 by Modelix Racing with the main objective of offering high quality alternatives and solutions to RC car drivers, primarily in the 1:8 scale nitro class.  The products have the advantage that they have been designed by engineers working alongside experienced racers.  Within a few years of launch, Ultimate Racing had become a brand synonymous with quality and competition in the 1:8 scale nitro market.

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ProCircuit: The ProCircuit tire brand was created in 2009 by Modelix Racing along with an experienced team of 1:8 off road professional drivers. At Procircuit, RC racing is a way of life that continuously allows us to demonstrate that the combination of innovation, reliability and performance works towards a single objective: enabling our team drivers and customers to benefit from the latest technological breakthroughs made in the world of racing, and win races.


Nitrolux: Modelix Racing has been manufacturing model engine fuel since 1999 under the prestigious brand of Ultimate Fuel. For commercial reasons, we decided to change the name in 2010 and that was when Nitrolux Fuel was created. Nitrolux is a brand of model engine fuel developed from the experience gained in the most demanding competitions. Recently we developed a new formula called Nitrolux Energy which we are very proud of because it provides high performance, high power, low consumption, more stability and most importantly, it takes care of your engine, lengthening its life without leaving any fuel residue.
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