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.
Championships for Rotax Micro Cadet
Next rounds
- Thu 8–Sat 10 Oct 2026BKC, Rotax Rounds 5&6; KZ2 Round 5Kart Silverstone
- Sat 17–Sun 18 Oct 2026UKC, Rotax National TrophyKart Silverstone
- Sat 7–Sun 8 Nov 2026TKC, Autumn CupWarden Law Kart Circuit
- Sat 16–Sun 17 Jan 2027TKC, Winter CupWhilton Mill Kart Circuit
Where it's raced
Clay Pigeon Kart Circuit, Dunkeswell Kart Circuit, Fulbeck Kart Circuit, Glan y Gors Kart Circuit, Kart Silverstone, Kimbolton Kart Circuit, Larkhall Kart Circuit, PF International Kart Circuit, Rowrah Kart Circuit, Shenington Kart Circuit, Three Sisters Circuit, Warden Law Kart Circuit, Whilton Mill Kart Circuit
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.





