Wheel Advice!

helloo am in need of help with buying new wheels, currently i've got 12x4.5 wheels on my 1992 mini city E but have been looking at purchasing some 12x6 ultralights but after abit of research i've realised that its not as easy as just changing them over?.. i realise that the bearings will be effected somewhat but really just want to know if they'll be an easy change over and i wont destroy anything any advicee will be much appreciated

Don't worry about the bearings, they won't be an issue.

The only issue is that they won't fit under 'standard' arches and you'll need to trim the front of the wing.

Or buy MPI wings, as they can accomodate 13x6's as standard.

Or buy MPI wings, as they can accomodate 13x6's as standard.

Is there such a thing as an MPI wing that has the modded arch? I was lead to believe that the wings were standard but modified in the factory.