Gearshift

Transmission (トランスミッション) was the Meta Ability used by the second user of One For All and later inherited by Izuku Midoriya.

Description
Transmission allows the user to change the speed at which things accelerate through space. The user may choose to enter different "gears" to increase the speed a given object has. These gears are First Gear, the base speed that is activated upon using Transmission; Second Gear, Third Gear, and Top Gear, the final and fastest speed.

According to the second user of One For All, Transmission has evolved into an unusual power that cannot be wielded the usual way. It has also been designated as a last resort. The second user told Izuku that once he used this Quirk, he would only have five minutes before he was out of the fight.

Trivia

 * Transmission is one of the oldest known Meta Abilities in the series along with One For All, All For One, Life Force, Spearlike Bones, Fa Jin, and the unnamed luminescence Quirk.
 * The name of one of the "gears" of Transmission might a reference to the British TV Show , due to the Meta Ability and the show both being themed after cars.