The Roller tires are a set of default wheels in Mario Kart 7. They're the smallest wheels in the game, and they offer the best acceleration and handling boosts among all the kart parts. However, they also offer the lowest speed and weight boosts.
The icon of the Roller tires.
Peach's kart, equipped with the Roller tires.
Shy Guy's kart, equipped with the Roller tires.