Looking at replacing a 105 front and rear deraileur with Shimano Ultegra FD-6600 G & RD- 6600 G respective;y. Keeping the 105 STI Shifters should present a compatibility problem should it??
Another thing, does any one know the clamp size of the FD on the '08 Poprad... 31.8 or 28.6???
Thanks in advance!