Originally Posted by
aramis
I don't know why manufacturers don't just switch to all braze on FD's and if you need a clamp on just use a clamp-on adapter which work great and are easier to adjust for height.
+1 This is certainly the most efficient and cost effective way to mount front derailleurs as the braze-on type is universal. It can be used with a braze-on tab for frames that come with one and mated with a suitable diameter adapter clamp for frames that don't. They certainly make drivetrain alterations and upgrades easier and a bit cheaper.