I found a high sierra framset that i am going to go look at. It has suntour roller cam brakes currently and they are functional. If i want to swap them out to cantis or v-brakes.........are the bosses the same? I am assuming so. It would be a huge task to create a frameset around specific brake bosses for a specific style of brake but......it was the early days of MTB standards. I figure it is best to ask to be sure.