Manga, defined in Wiki as "Manga consist of comics and print cartoons (sometimes also called komikk), in the Japanese language and conforming to the style developed inJapan in the late 19th century. In their modern form, manga date from shortly after World War II, but they have a long, complex pre-history in earlier Japanese art." (source )
Anime, defined in Wiki as "Anime is animation originating in Japan. Outside Japan, anime is also referred to as "Japanese animation"." (Source )
Both Japanese "comics" are a cultural phenomanen in Japan, and have also taken over the rest of the world. Mangas and Anime are very popular in Europe and the North America, mostly by youngsters and but also older folks.
Often, you can find the heros riding a motorcycle, since motorcycles are a popular form of transportation in Japan. So here are 50 Mangas and Animes featuring a motorcycle. Maybe some of them are not originating from Japan, since they are now popualr around the world, but can still be considered Mangas.
One of the most popular motorcycle riding Manga is probably Akira .