Centrifugal clutches are a bit different than the style of clutch you might be familiar with. They aren't used much on cars, but are commonly found on vehicles like scooters and go-karts. Like the ...

John Heckman’s quest to break the world’s go-cart record sputtered and died yesterday when his clutch sheared off just 29 miles short of his 195-mile goal. But he said he’ll try again. “Losing the ...