Well in a nutshell steel ball run rakes place in 1888 (at least i think from what i remeber) where we learn about the golden ratio and spin. Our main character is johhny joestar and gyro zeppili, a parapalegic jockey and a happy go lucky italian guy. They participate in the steel ball run and during it, uncocer the story of the holy corpse parts and the true power of the 23rd president, funny valentine. Theres much more to it though