I just got progressive springs today, and it says my bike needs a spacer

where do I get one?

im not sure on the exact size but you can get some pvc and cut it to size and plop it in there. (From what i've read around here anyway). Try doing a search on it, im too lazy to look  

There are many mentions of fork spacers around, but you may want to start with the Fork Spacers thread.

It includes pictures of the PVC Schedule 80 spacers I used, as well as descriptions of other folks' solutions.

I used the stock spacer and cut off the 3/4" per progressive instructions (length, not using the stocker in prog. instructions). you may want to keep yours intact and buy PVC pipe, I think it was 1/2" diameter pipe.

Ditto to Pantablo's comments.  I just cut two pieces of one of the original lengths.  You won't need them for anything else anyway.  Once you have the progressive's in you will never go back!

Rob

thanks, guys,
I used PVC
and she is a lot stiffer, much better ride!!!!!!!