5 x 14 wheels and tyres

Forum: 

I am looking to fit a set of Alloys and tyres to my Kenari, yes I know this is an interloper but I need to pick a few brains.

Given that the move/kenari normally live life on 4 x 13 wheels.

Some research has pointed to 175/50 x 14 tyres on 5 x 14 wheels rather than fit 165/60 x 13 tyres to the exisitng cottons.

One reason for the larger tyres is to calm the slightly wayward handling on bumpy corners.

Can anyone shed a little light on the offset inset of the standard steel wheels?