MBS Truck Mod - No Springs...

http://remolition.com/index.php?option=com_content&view=article&id=212:west-coast-atb-springless-tracks&catid=4&Itemid=11

http://dirtboardriders.yuku.com/topic/1987/t/Springless-channel-trucks.html

http://www.mountainboard.fr/test18.html