SK8 the Infinity
SK∞ エスケーエイト (original)
"S" is a dangerous, top secret, no-holds-barred downhill skateboarding race down an abandoned mine. When avid skateboarder Reki takes Langa to the mountain where "S" is held, Langa, who's never been on a skateboard in his life, finds himself sucked into the world of "S", and…?!
Starring Chiaki Kobayashi, Tasuku Hatanaka, Takehito Koyasu, Hikaru Midorikawa, Takuma Nagatsuka, Yasunori Matsumoto, Kenta Miyake
It's a animation and action & adventure show, and has a rating of 8 out of 10 from Imdb which is usually fine for this kind of show.
Watch it here
Not found streaming from United Kingdom.