Mini-Turbo (MTB)
The hidden Mini-Turbo stat determines the length and speed of drift boosts, and the length of jump boosts.
Speed (SPD)
Speed has 4 stats, only the first of which is displayed in-game. They are Ground (SPDGR), Anti-Gravity (SPDAG), Water (SPDWT) and Air (SPDAR). They determine your top speed in each medium.
Acceleration (ACC)
Acceleration determines how fast you can reach top speed.
Weight (WGT)
Weight determines the physics of collisions with other vehicles. Higher weights push lower weights.
Handling (HND)
Handling has 4 stats, only the first of which is displayed in-game. They are Ground (HNDGR), Anti-Gravity (HNDAG), Water (HNDWT) and Air (HNDAR). They determine how sharp and wide you can drift and steer in each medium.
Traction (TRN)
Traction determines how much you slip on terrain like sand, snow, ice and wet asphalt.
Invincibility (INV)
The hidden Invincibility stat determines how long you stay invulnerable after being hit.
Combo Parts
A combo is comprised of a driver, a body, wheels, and a glider. The driver is usually the most important in terms of stat contribution. The glider is the least important.
Tap any combo part to change it.
Part Classes
Parts that have the same stats as your current combo have a dashed outline in the part picker.
Note that INV and frame size can change even between parts of the same class.
Locks
You can lock a part to limit which combos appear in the Dominant, Similar and Custom Search tabs. This can help you find interesting combos according to your style preferences.
Random Combo
Tap the Random Combo button to replace your currently active combo with random parts. Lock individual parts to keep them.
Frame Size
The driver determines the combo’s frame size between small, medium, and large. This affects your in-game hitbox.
Inside & Outside Drift
There are 2 types of bikes: Standard Bikes and Sport Bikes. All bodies except Sport Bikes have outside drift.
Visit the Mario Wiki for more info about the game.