i just bought a motobecane mixte frame to build up for my girlfriend. originally the rear brake on the bike would have been a centre-pull calliper brake and it would have been mounted just below the sloping top tubes against the seat tube. i would rather use a modern side pull calliper brake and mount it between the seat stays like on a traditional road bike frame.
there is a mounting whole on the piece between the seat stays but i am not sure if it is adequate for mounting a brake. i wonder if it is just there to mount a rear rack, reflector, etc.
do you think it will be ok to mount a side pull brake in this way or should i stick to the centre-pull. if the mounting whole is there should i assume it is strong enough for a brake.
let me know.