http://www.scooter-center.com/scoweb/pages/productdetail.grid?product=288621640881520&category1=A&category2=CAT&lang=en what does matching of the crankcase is required meen ? can i just fit it on my bike?
Aside from needing a race crank and pipe and carb to match the kit you'd have to get the cases machined to accept the bigger barrel. Basically you're looking at MINIMUM £100 worth of case work plus at least £2-300 worth of parts if your bike isn't race spec or similar