Air Gear (2002)

Blurb:
Itsuki Minami is a junior high school student with a dream - to become the best Air Track player in town. It won’t be easy, as he faces a lot of competition from boys and girls alike. What is Air Track? Just the latest craze that involves taking a two-wheel inline skate and adding a motor, new suspension and a shock absorber to enable the wearer to execute the wildest, wackiest, most aggressive moves you can imagine. Ikki has a lot to learn as he fights his way to the top in this wild, sexy manga. **** Itsuki Minami needs no introduction - everybody’s heard of the 'Babyface' of the East-side. He’s the toughest kid at Higashi Junior High School, easy on the eyes but dangerously tough when he needs to be. Plus Itsuki lives with the mysterious and sexy Noyamano sisters, so life’s never dull. But it gets downright dangerous when Itsuki leads his school to victory over some vindictive Westside punks with gangster connections. Now he stands to lose his school, his friends, and everything he cares about. Then the Noyamano girls give him an amazing gift, one that just might help him save his school: a pair of Air Tracks. These high-tech skates are more than just supercool. They’ll enable Itsuki to execute the wildest, most aggressive moves ever seen - and then bring him to a thrilling and terrifying new world.

Source: www.anisearch.com/manga/1042