I am looking for a set of replacement fork tubes for my 94 CBR600 F2 forks. I was wondering if anyone had any info regarding the interchangeability of different models/brands for these showa forks? I found new tubes for about $150 each but that is way more than I really wanted to pay to get these fixed up.

There are fork tubes from the CBR400 (NC23 or NC29) uses 41mm tubes and I was wondering if anyone knew if they were the same or can be used?

Your help is appreciated.