Front Derailler Problem? or is it just me.
I just bought a Tiagra front derailler off of ebay for my Surly Crosscheck. I have old shimano 105 7-speed components mounted with a double in the front. My problem is I can't seem to get enough "lateral travel" out of my front derailler to get the outer plate outside of my large chain ring. The adjustment screw is bottomed out and I have another .5 cm to go just to be flush. Is this a bottom bracket/crank problem? Is it something in the way I hung the derailler? Any help is greatly appreciated. Thanks.