Kazuo Nagata, 54, was driving from Hamamatsu to Gifu, central Japan, with a group of ten friends early Monday morning. He lost control while turning his bike, and veered at high speed onto a median strip, grazing a crash barrier.
Nagata struggled to maintain control of his vehicle and kept driving despite the agony. He did not look down at his ripped leg until the group stopped at a junction a mile down the road.
A friend drove back to retrieve the leg, severed a few inches below the knee. The bikers took Nagata to hospital, but doctors said the limb was irreparably damaged, and could not be reattached.