Hi Guys, could someone explain wheel offsets and sizing if they have a minute,

also, could someone in the know let me know if these wheels,

ebay

would fit a mk1 mx5?

they won't fit they are ford PCD of 108

MX5 is 100 i think

this explains it quite well: http://www.carbibles.com/tyre_bible_pg4.html

PCD notation
Stud patterns and PCD values are typically listed in this notation : 5x114.42. This means a 5-bolt pattern on an imaginary circle of 114.42mm diameter.
http://www.carbibles.com/images/wheelpcdspigot.jpg

An image wrt circle that touches each stud , measure the diameter this is the PCD.
On a 4 stud hub or wheel you can measure diagonally across 2 from the centre of 2 studs

[Edited on 23/7/10 by snapper]

thankyou very much guys thats cleared it up for me,