Bringing Skateboarders Doing 60 to a Halt.

LAGUNA BEACH, Calif. -- Chance Gaul cannot drive a car yet. He is only 14. But he is already the fastest thing on wheels around here. While Porsches and Mercedes-Benzes precariously descend the windy canyon roads here at 25 miles per hour, Chance bombs down at 40, sometimes even 60 m.p.h. on his skateboard, savoring the sea breeze on his face. But this may be his last ride here. [ABSTRACT FROM AUTHOR]