What age can you race Tillotson T4 Junior?

The Motorsport UK Karting Yearbook gives the age range as 12-16. From the calendar year of the 13th birthday, or from the 12th birthday with a Kart National licence.

What is the minimum weight for Tillotson T4 Junior?

143 kg for kart and driver, with a minimum driver weight of 40 kg, according to the Motorsport UK Karting Yearbook.

What tyres does Tillotson T4 Junior use?

Maxxis T4 for dry conditions and Maxxis T4 Wet for wet conditions.

Classes / Junior

Tillotson T4 Junior

4-stroke Junior version of the Tillotson T4 engine. Single-chassis class: everyone races the same Tillotson chassis.

The essentials

Ages: 12-16From the calendar year of the 13th birthday, or from the 12th birthday with a Kart National licence.
Minimum weight: 143 kgDriver at least 40 kg
Number plates: Yellow/Black
Dry tyres: Maxxis T4Set from £167.60 inc VAT
Wet tyres: Maxxis T4 WetSet from £183.31 inc VAT
Class owner: Tillotson

From the Motorsport UK Karting Yearbook 2026, Version 1.1, page 49. Check the current regulations with the class owner before you buy.

Next steps

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Questions

What age can you race Tillotson T4 Junior?: The Motorsport UK Karting Yearbook gives the age range as 12-16. From the calendar year of the 13th birthday, or from the 12th birthday with a Kart National licence.
What is the minimum weight for Tillotson T4 Junior?: 143 kg for kart and driver, with a minimum driver weight of 40 kg, according to the Motorsport UK Karting Yearbook.
What tyres does Tillotson T4 Junior use?: Maxxis T4 for dry conditions and Maxxis T4 Wet for wet conditions.

Other Junior classes: IAME X30 Junior, Rotax Junior Max. All classes.