[Rev Jules]

Originally Posted by Jakg

Offset is basically how far it sticks out - too low and you hit the brake calipers / arches (which mine does under full lock anyway, but I digress...), too big and you are out of the body which is illegal. You can use spacers to add offset.

Bore is the circle in the middle the wheel actually sits on - the nuts / lugs hold the wheel on, but the bore actually holds all the weight. If your wheels have a larger bore than your wheels, theres no contact and all of the weight goes through the bolts which is bad (but many *many* people run like this).
Not necessarily - aftermarket wheels use massive bores (~76) so that you can use a spigot rings (~£10) to make it a bit smaller to fit your car.

Having said that, I doubt you'll find something small enough to go from 57.1>56.1, but you could have something custom made.

Hi Mate.

You have just answered a question on full lock I can hear a rubbing sound either way I have 16 inch wheels. they came with the car and the tyres are Pilot tyres,