Also known as, "Line inside the inner line/shoulder"is the unofficial term for an driving technique used by a fictional Touge racer appearing in the Initial D series, Kai Kogashira, to overtake the opponent by jumping
off the road to
the other side of the hairpin curve.
The term "Irohazaka Jump," is developed due to the location where the characters raced, Irohazaka mountain pass, which is known for having huge height gap at the hairpin curve, thus made it possible to jump
off the road to the other side.
The theme song used during this technique is "Crazy for love" by Dusty.
The term "Irohazaka Jump" usually used whenever someone jumps
off the road to
the other side of the hairpin curve in Racing
simulator games such as Assetto Corsa and Gran Turisomo series.