But something just seems sketchier, rawer even, about this 180 horsepower CBR 1000 swapped shifter kart from the folks at BUM (Building Ugly Machines). For starters, the kart they picked up on ...

It all leads up to the ultimate in karting: the 125cc shifter kart. With a top speed of 120 miles per hour, the shifter is no toy. "When you do open it up, my god, it goes fast," said Patrick.