A motorcyclist was arrested Wednesday afternoon following a bizarre high-speed chase in which the suspect punched several vehicles and eventually ended up off-road in a freeway construction zone in Sun Valley.The pursuit of the orange motorcycle began about 3:30 p.m. on the westbound 210 Freeway near Mills Avenue in San Bernardino after the driver failed to pull over when he was observed speeding, according to CHP officials.The pursuit, which hit speeds of 85 mph, took a bizarre turn when the suspect drove through Los Angeles County and television footage appeared to show the man punching at several vehicles.At one point, he appeared to injure his left hand or arm while getting caught up in a side-view mirror on one of those vehicles.The chase transitioned to the 170 Freeway through North Hollywood. The motorcyclist, by then heavily favoring his injured arm, eventually pulled off into a dirt construction zone near the junction of the 170 and 5 freeways, got off his bike and crouched down.Here's a version "Nonad" posted that is longer: www.liveleak.com/view?i=9d7_1370476791 Another version here: www.nbclosangeles.com/news/local/Watch-Live-Police-Chase-Mot