Spacers needed for new calipers? Choppy brakes?
just curious ive already had the brakes on for a couple months now but i did notice at the track that little choppie feel when hard braking. dont know how to describe it but i thinks it been mentioned here before when swapping calipers. 04 with 08 zx6r mc and calipers with ss lines stock pads until they wear out. they brakes are amazing and 10x better. dropped my lap times pretty decently. anyways during hard braking (i mean hard!) i get this little choppie feel/stutter/slight vibration in the brakes. not anything drastic...doesnt even bother me actually but if i can eliminate it that would be great. anyone know what this is and why? do i need spacers or something? .....?