I believe the Ford RS alloys were fitted to Mk1 & 2 RS Escorts, Lazer Capris and some Fiestas.

Can anybody tell me what are the differences (apart from width) between each type of wheel?

Cheers
Gary

Hi Gary,
Rob Lane has covered this on his excellent website www.robs7.com.
Regards, Neil
PS spent yesterday evening looking for all the postings on Castor angle and think a minor modification will be needed to achieve the 5.30 degrees.