Maybe a silly question, but I'm just curious.
Are there many Vespa accessories that don't require some type of fitting to actually get onto the bike properly? Is there really such a thing as "bolt-on" when it comes to the modern ones?
Take my list of accessories for example.
--Front fender trim is almost bolt-on, but requires breaking and removing the reflectors.
--Faco front rack is probably the closest thing to bolt-on. I do like to put small circles of plastic between the bottom support cups and the legshield, or else it mars the paint. Not a permanent mounting, so I don't know if that counts.
--Mid-size screen seems bolt-on, although I did not install it myself. I did have to adjust it, when the dealer installed it incorrectly. So maybe bolt-on, but not idiot-proof.
--Piaggio alarm needs at least one hole drilled for the blinky light keyhole.
--Vespa rear crash bars were definately not bolt-on. Had to file down the pieces in the back to get them to fit, then whacked them together with a mallet.
--Backrest was mostly bolt-on, but took some fussing with to get it lined up correctly, and I ended up buying nicer hardware for it.
--Even the mudflap I just recieved needed bits to be cut from it to get it to fit.
I've gotten to the point that if a Vespa-specific accessory doesn't seem like it needs altering, I immediately wonder if something's wrong with it. Not a rant, just an observation. Everything I ever put on my old little Scarabeo fit extremely easily, except the jerry-rigged front rack I made for it.