Weekly Shōnen Champion
"Yowamushi Pedal" is written and illustrated by Wataru Watanabe, and the manga began serialization in the 12th issue of Akita Shoten's "Weekly Shōnen Champion" on February 21, 2008. The series was later published in tankōbon format by Akita Shoten, with the first volume being released on July 8, 2008. As of February 2020, 65 volumes have been published.