parts are cheap and easily available for the ET motor, along with performance upgrades. why would you go thru the "engineering" to put in a motor that was lower performance, had questionable build quality and probably changes the ride quality of a perfectly good bike?
seems like a bass akwards approach to an easily solved problem.
All Content Copyright 2005-2020 by Modern Vespa. All Rights Reserved.
Modern Vespa is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com.