and it depends if the frame is alloy or crabon and steel....cuz steel and carbon has the inherent flex in them and therefore the headtube will stretch .......1/8 of an inch should be just about right........alloy will just crack.........and it also depends on the size of the hammer and the force you bash.......
and it depends if the frame is alloy or crabon and steel....cuz steel and carbon has the inherent flex in them and therefore the headtube will stretch .......1/8 of an inch should be just about right........alloy will just crack.........and it also depends on the size of the hammer and the force you bash.......