Steel Ball Run

Steel Ball Run (スティール・ボール・ラン, Sutīru Bōru Ran) is the seventh story arc of the Japanese manga series JoJo's Bizarre Adventure, written and illustrated by Hirohiko Araki. Set in 1890, it stars Gyro Zeppeli, a disgraced former executioner, and Johnny Joestar, a former hot-shot jockey who was shot and lost the use of his legs, as well as his fame and fortune. They, along with others, race across America for $50 million, reminiscent of the 1981 film The Cannonball Run.

Originally the first 23 chapters (4 volumes) were serialized in Weekly Shōnen Jump in 2004 simply under the title Steel Ball Run. Although the character's names are obviously related to the series, it was unclear if the story was a part of JoJo's Bizarre Adventure. However, when the series moved to Ultra Jump in 2004, it was officially announced as part 7 of JoJo's Bizarre Adventure, but in an alternate universe, like the following and current arc, JoJolion.

The 95 chapters were combined into 24 tankōbon volumes (volumes 81 to 104 of the entire series), following the trend set by the previous part, Stone Ocean, of starting over the volume count. A couple of chapters were adapted into a "Vomic" series, which has voice actors act over the manga pages as they are shown on screen.