Can i transfor one set of brakes to another bike?

Question

i have an old junker moutain bike that has brakes and i have a bmx bike without brakes. i have the brake levers and everything from an old bmx bike with out the cables tho/

my question is can i take certain parts from my mountain bike and put them on the BMX bike?

Answer 1

Some parts will be interchangeable but the cables won't be because the mountain bike is much bigger and would have longer brake cables.

Answer 2

some you can, some you cant but stick bmx with bmx. brakes wont work, the tabs are different