to put a front changer on a frame that doesn’t have cable stops for one. frame has cable routing on the top tube, but not on the seat tube, so i need a cable stop clamp thingy for the seat tube. what is it called? where do i get it? ta

What diameter is the tube? Clamp-on things do exist, I have a few kicking about.

not sure, its an identiti dr jekyll, shall bring home calipers tomorrow. suspect, no, sure it was never designed to have a front changer, but building it up for middle child and will take it off later. he’ll need a double for the lovely hills of calderdale. i’m sure i’ve seen such a thing before tho

This

A lot of the newer front derailleurs have a built in cable stop.