Rotax

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The Championships Explained

About the 2025 Rotax

Rotax first came into karting with its fabulous 124 single in the 125 class, and then a couple of years later with the tandem twin 250cc engine, which took over the world of Superkarting. In the late 1980s, Rotax introduced the first of many 100cc models, the DSA. Very quickly the world of traditional 100cc racing was turned on its head and Rotax dominated.

The Rotax Max was first seen in 1997 – a completely new concept with a self-starter and centrifugal clutch. This revolutionary engine was designed with the leisure market in mind. Within a year the UK was leading the way with an explosion of competitive racing using the Rotax Max, the only problem being that supply could not keep up with demand.

The rest, as they say, is history. The Rotax classes are now universally popular; the base engine is available in all power levels for kart drivers aged seven and up.

A unique feature of Rotax Max ownership is the warranty; every engine and rebuild component is covered. Warranty claims are rare – the engines can race competitively for a season between rebuilds and parts are relatively inexpensive. Due to its longevity, there is now a healthy market for good used Max engines, which can be super reliable and inexpensive for newcomers to the sport.

Enter the Championship arrow

Rotax Calendar

Competitors will race head-to-head against each other at a variety of well-known circuits across the UK.

Rotax Classes

Championships feature a number of different classes based on driver age and kart specification. Each class has its own races within the meeting.

Cadet

MicroMax UK

Age 8 - 12

  • 12-15 years old
  • CIK/Motorsport UK (group 1 or 2) homologated chassis
  • 125cc restricted 2 stroke engine
  • Mojo tyres
  • Water cooled
Inter

MiniMax 950

Age 10 - 13

  • 12-15 years old
  • CIK/Motorsport UK (group 1 or 2) homologated chassis
  • 125cc restricted 2 stroke engine
  • Mojo tyres
  • Water cooled
Junior

Junior Rotax

Age 12 - 15

  • 12-15 years old
  • CIK/Motorsport UK (group 1 or 2) homologated chassis
  • 125cc restricted 2 stroke engine
  • Mojo tyres
  • Water cooled
Senior

Senior Rotax

Age 15+

  • 12-15 years old
  • CIK/Motorsport UK (group 1 or 2) homologated chassis
  • 125cc restricted 2 stroke engine
  • Mojo tyres
  • Water cooled
Compete against the best in the world!

Enter the 2025 Wera Tools British Kart Championships

On average, over 500 competitors register to compete in these Championships each season. Don’t miss out on your chance to fight for the Wera Tools British Kart Championship crown. Register now.

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