What tire type is used for kart racing on a dry track?

Slicks are the tire type used for kart racing on a dry track. Their smooth tread keeps the largest possible rubber contact patch against clean, dry asphalt, helping the kart generate cornering and braking grip.

Kart slicks come in different compounds. Very soft compounds can provide exceptional grip for short competitive sessions, while harder compounds last longer and are common on rental or amusement karts. Tire pressure and track temperature also strongly affect how a slick behaves.

A common mix-up is assuming that grooved tires are always safer or faster. Grooves help move water away from the contact patch, so rain tires, also called wets, are designed for wet conditions. On a dry surface, those grooves reduce the rubber touching the track and can make the tire less effective.

Special spiked tires exist for icy conditions, and modified grooved tires may be used on dirt or clay speedways. But for ordinary dry-track kart racing, the canonical answer is slicks.