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Class Explorer

FIND YOUR
CLASS.

19 race classes spanning ages 5 to 35+. Tell us how old the driver is and how much they weigh, we'll show every class they're eligible for and what comes next.

Driver Age12
550+
Driver Weight95lbs
40 lbs250 lbs
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Eligible Classes6

Click any class for detail and progression path.

Matching Classes

Sorted by minimum weight. Lighter classes are typically easier to start in.

Class Detail
Mini
Two-Stroke
Age Range
8-12
Min Combined Wt
245 lbs
Required Ballast
+0 lbs
Required Tire
MG SH2
Ballast Math
A 95 lb driver in a ~165 lb kart = 260 lbs combined. You're already over the 245 lb minimum, so no ballast is needed. You may want a heavier weight class for less of a power-to-weight disadvantage.
New to ballast? How it works →
What's Next
KA 100 Junior
Ages 12-15 · 320 lbs · Two-Stroke
Rotax Junior
Ages 12-16 · 320 lbs · Two-Stroke
Compete in this class at the Rhythm & Race Championship Series
See R&R Series →
The full spread of race karts staged in the paddock, Kid Karts to shifters
The Whole Ladder

Kid Karts at age five to
125cc shifters. One paddock.

The Paddock · Every Class Stages Here
19Every Class

KNOW YOUR CLASS.

Every class in the Rhythm & Race Championship Series, with a full breakdown of the engine, the age and weight, the racing, and where it sits on the karting ladder.