axel size??
 

im thinking about changing my suspension forks for some rigids however i dont know the size of my axel... i have been looking at some rigid forks and it seems like i can get either 9mm or 14mm axel.
does it matter which one i get? do i have to have a certain width?
how can i find out what size mine are?
cheers

(i have marzocchi drop offs at the moment)