Superchargers for tiny motorcycles and vast numbers of examples of lunacy from ages gone. Rule of thumb from this page: "One's brakes should NOT be smaller than one's supercharger". http://www.elsberg-tuning.dk/supercharging.html --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .