Steel Ball Run

Originally thought to be a "standalone alternative universe", Steel Ball Run (スティール・ボール・ラン) has been officially declared a part of the Jojo's Bizarre Adventure series starting from volume 5 – incidentally also the same volume the series underwent the change of moving it's serialization from Weekly Shounen Jump to Ultra Jump, a seinen magazine. Aside from the chapters being longer in page count, the switch from a weekly magazine to a monthly one had a noticable impact on the art, as Araki seems to go for a more detailed, "naturalistic" look for his characters – the shift in style can be seen starting from volume 7-8.

Many familiar faces seen in the previous parts of the JJBA can be found in Steel Ball Run right from the start – characters such as Abdul from Part 3 have their own alternate universe counterpart appearing in the story.

Plot Summary
After Pucci is killed by Emporio at the end of Stone Ocean, the universe's full transformation was halted and as a result became surprisingly similar to it's "original self". The story this time around begins in 1890. The series starrs Gyro Zeppeli, who uses a set of steel balls with a special kind of spin, and Johnny Joestar (an alternate universe Jonathan Joestar), a former hot-shot jockey whose career ended early due to paraplegia. They race, along with others, in a mad-dash across America for 50 million dollars and possibly something else...

The race
Steel Ball Run (race)