Here is you some training , a bike powered roller coaster in Japan
http://funtime.blogbugs.org/552046/F...-in-Japan.html
Just found some more info on this ,
This ride is called: スカイサイクル (Sky Cycle).
It's located at the Washuzan Highland Park (
http://www.rcdb.com/ig1433.htm?picture=1), in the Okayama prefecture, Japan. The bridge is the Shimotsui-Seto Bridge.
The pictures probably come from here:
http://drkssk2.fc2web.com/washuzan/skycycle/cycle.html
Regards.