hey, i am having some braking problems lately, the front break is pulsating... i think it maybe the rotor, but i am wondering wether it could be something else... the rotors dont 'look' bent, but if in fact they are i probably wouldnt be able to see it anyway. Could it be my brake pads? I am new to bikes, and just checked all my brake pads, i think that the line down the middle of the pad might be a wear line? and if it is, only one of my 4 pads on the front still has it, the rest are almost all smooth...
could this be the problem?