I'm having some problem setting up the front derailer on this old Klein I've got. The fd is a 600 tricolor FD-6400 and the shifters are 2x8 600 ST-6400. Now, this set-up is what came with the bike when I bought it, and I've got it to work before. However, the travel of the derailer doesn't seem to match the travel of the shift lever, and I've got to put so much tension on cable that the chain rubs in the small ring/big cog combo.
I've tried a couple different cable routings to no satisfaction. I've been trying to find some info about this on the web, and I find snippets of info that say that the FD-6400, made for 7-speed, doesn't have the right travel/geometry to work properly with STI levers. That seems apparent to me right now, but I'm not the most experienced mechanic and I can't rule out that I'm just an idiot who can't adjust a derailer properly.
I'm close to pulling the trigger on either a FD-6401 or a FD-6500 on ebay as those seem like they are supposed to work, but I thought I would check in here before I spend the money to make sure it will fix my problem.