Hey, im tempted to get an avid bb7 but am unsure what size to get and how strong they are. I have seen many pictures of broken calipers, it has slightly put me off but i know they are still amazing brakes. Also i am riding a mod, what size rotor will be most powerfull with out being stupidly big and which lever should I run with it? I have viz forks wich are +30. < well i did phone viz bikes and thats what they said . cheers Ben x