Well I've been lurking around your forum for the last couple of years since I got my 89 cbr. You guys have some pretty sweet bikes. And you've got some great ideas on what to do with these older bikes. I've been working on mine for the past year and a half and it's really coming along. I'm getting ready to swap the chain and sprockets, can you tell me if I go down 1 in the front and up 2 in the rear if a 110 link chain is going to work or will I need a longer one?I've got the parts but I've heard I may need a longer chain. Anyway here's a pic of what I started with and where I've came so far.

[IMG]local://upfiles/23221/944AEDEF4FDF4024B4659ACCD2E4642A.jpg[/IMG]

[IMG]local://upfiles/23221/7E28406FD04E43D88C435D9DC6E81D55.jpg[/IMG]

 

I would add the two teeth in the back. When I dropped one tooth on the front sprocketI noticed more rapid chain wear.You will not need to change the length of your chain.

 

i found a kit on ebay with a oring chain and vortex gears ft and rear. its a quick accel kit and it kills top end but it gets there quick.