Tires affect several aspects of your final kart, but the most notable characteristics deal with speed and handling across various terrain types. It’s also worth noting that tire selection is the only way to alter your kart’s stability.
Default Tires
These tires are available at the start of a new game.
Standard
Monster
Roller
Secret Tires
As you collect coins in Grand Prix, you unlock these tires in random order.
Slick
Slim
Sponge
Red Monster
Mushroom
Wood
Gold Tires
To unlock the Gold Tires, obtain a minimum one-star rating in each cup of every class, or collect 15,000 coins from the Grand Prix cups.