General PCD = Pitch Circle Diameter

[cjboss]

Hooraaaaaay !
sorry to be a pest on the subject, but if I cant work something out I harass it until I can lol!
For anyone interested in the PCD tech info etc its (& loads more too) available here.....
http://www.chris-longhurst.com/carbibles/index.html
menu.html&tyre_bible.html

thanks


regards.....cj