Little Darwin.

My first leaning was Deerhead - but finding a nice afforable one has gotten challenging. I am hopeful the FD# 6207 will be my solution in reading the spec's is rated for 18 teeth and probably 20 is okay. There are three varieties of 600 fronts - 2 are rated for 14 teeth and on is rated for 18. It really doesn't make a difference friction or index it's the design of the front der. and beveling of of the cage especially more modern ones. My bike knowledge until more recently was campy specific - now I have to access to older Shimano and Suntour part catalogs and know who actually produced private branding labels like Specialized in the 80's. And as it turns out varieties of Shimano 600 were used on mountain and touring bikes pre XT just like Deerhead. It's driving me alittle crazy !!!