This complete on-board lap of the Isle of Man TT Mountain course, recorded during the first Supersport race at the 2010 TT, shows Guy Martin on the opening lap, averaging more than 125mph on... Read allThis complete on-board lap of the Isle of Man TT Mountain course, recorded during the first Supersport race at the 2010 TT, shows Guy Martin on the opening lap, averaging more than 125mph on the 600cc Wilson Craig Honda.This complete on-board lap of the Isle of Man TT Mountain course, recorded during the first Supersport race at the 2010 TT, shows Guy Martin on the opening lap, averaging more than 125mph on the 600cc Wilson Craig Honda.