Most (but not all) riders with 50cc are inexperienced youngsters - giving them an engine 6 times the size isn't always the best idea. That isn't quite so clear with the OP though. I'm sure your scooters are all properly insured Andy, with all the parts sourced legally and that you're qualified to ride larger engined bikes. Pps all my scooters are heavily modded and produce far more power over stock, i declare every mod be it engine or bodywork to my insurance which are very sympathetic to the piaggio brand as they have been modded since inception. I have never had my policy loaded by more than £75♰0 which is fantastic as the mods also push the agreed value of the scooter up by £1000`s. Scooter tuning is NOT a crime and to many people it is a real hobby and pursuit to try and squeeze the last drop of your engines HP out, myself included. Some of you may find it an opportunity to show scorn or disapproval, why make your disparaging comments? I hope this clears up all the guessing stabbing at the negatives posts. The only mod to the bodywork is the plastic rear numberplate / mudgard needs re shapeing with a heat gun to stop fouling when the suspension is fully compressed You can retain the rear 12 inch wheel and fit a gts front hub to uprate the brakes on the front, the front12 wheel also just bolts right in. You only need a piaggio zip 125 engine mount and it will slide right in, absolutely no frame mods needed. Patrick Owens AKA oopsclunkthud put a gt200 engine in a lx frame and retained the 10 inch wheels by swapping the gearbox.īut those in the know or who have read tuning posts on here will acknowledge that the 300 engine is the same physical size as the 125 which is already factory fitted in the et4 / lx frame. Not most people's answer to 'will it fit'? I hate to break the bad news but, this has already been done, But in this case, the engine will not fit 'inside' the existing ET2 monocoque frame, so the first thing you would need to do is take the frame apart and rebuild it so the engine could be mounted.

Piaggio zip variator diagram of eye