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Classes / Cadet

Rotax Micro Cadet

Restricted version of the Rotax 125 Junior MAX engine.


The essentials

Ages
8-11From the calendar year of the 8th birthday, with the required Bambino experience.
Minimum weight
105 kgDriver at least 28 kg
Number plates
Yellow/Black
Dry tyres
Vega Cadetti 'UK'Set from £166.80 inc VAT (lowest of 2 UK sellers)
Wet tyres
Vega WM1 CIKSet from £178.80 inc VAT (lowest of 2 UK sellers)
Class owner
JAG (UK)

From the Motorsport UK Karting Yearbook 2026, Version 1.1, page 24. Check the current regulations with the class owner before you buy.

Questions

What age can you race Rotax Micro Cadet?
The Motorsport UK Karting Yearbook gives the age range as 8-11. From the calendar year of the 8th birthday, with the required Bambino experience.
What is the minimum weight for Rotax Micro Cadet?
105 kg for kart and driver, with a minimum driver weight of 28 kg, according to the Motorsport UK Karting Yearbook.
What tyres does Rotax Micro Cadet use?
Vega Cadetti 'UK' for dry conditions and Vega WM1 CIK for wet conditions.

Other Cadet classes: MightE Cadet, IAME Water Swift (restricted), Honda Cadet, Rotax E10 Cadet. All classes.