what is the part called that screws in the front fork of the bike to then you screws the bolt of the v brake system calliper in to it ? any links on-line or what is its called mine broke and i need a new one.thank you
It sounds like you are talking about a cantilever (V brakes are long arm cantilevers) brake stud which is part of the whole little arm called a "braze on" brake boss - a pivot for the brake arm. There are 2 types: replaceable and non replaceable. Replaceable types can be simply swapped out if the point it attached to the frame is still in good shape. See the link below for a sampling. Always check for cracks or deformation before replacing just the stud. An extra note, the red thread locking compound pictured on one of them is *very* difficult to remove without power tools. So make sure it is properly installed. The non replaceable stud types are one solid unit that would need to be 1st removed and then a new one brazed on. This is not a task for the home mechanic. It is often far more cost effective and safer to just replace the fork. Sorry, just the way it is. Either way, take it to a good local bike shop near you. They can inspect the fork and the brake pivot and see if it can be salvaged for little cost (you can see the part itself doesn't cost that much) or a new fork would be better.
