Gravity Prone Trikes



www.sincycles.blogspot.com
www.youtube.com/watch?v=b8_83fws9aM

=================



Gravity Racer by danimal1126
www.youtube.com/user/danimal1126

TheUpHillMachine - Custom Gas Boards





Justin Heller
www.youtube.com/user/TheUpHillMachine
www.youtube.com/user/123justinheller

Skate Drive





www.sk8drive.com

Hot Blonde on Electric Mountainboard



www.StreetStikElectric.com

Electric Bar Stool Racer



top speed 58mph
Karen Mohr

www.endless-sphere.com/forums/viewtopic.php?f=35&t=30746
www.explodingdinosaurs.com/saltflats/2007worldofspeed/barstool/index.html
www.engineeringhobbyist.com/projects/completed/barstool_racer/

Segway MAX hecho en casa



www.youtube.com/user/walter3876

NeurotiCooler



www.neurotikart.com

Audi A0 MonoCycle



www.engadget.com/2011/08/12/audi-a0-monocycle-concept-takes-you-for-a-jaunt-around-the-park

http://video.sina.com.cn/v/b/58903542-1413131211.html

EcoBoomer



www.theecoboomer.com