i was with out a over sized clamp for a while so i used a pipe tightener thing not goo for keeping your scoot dialed but hold it togather. you will need a slit and a pair of cutters to cutt of assece metal bands
like this: http://www.hiwtc.com/products/pipe-clamp-531-1359.htm
you will need to tighten alot it will no stripp so dont worry.