Join Date: Mar 2010
Location: Minnesota (meh)
I have EBC on the front of my bike because I thought the stockers where warped, turns out they are not, that was an expensive attempted fix. at 90+mph I get the same shutter with no breaking. The steering is tight but I sounds like I have beads in my tire or something but coming from the axle. About the only thing it can be is the wheel bearings so they will be getting replaced with a new front tire come spring. It feels just like a warped rotor when I hit the breaks though.
PRS is right, if its a warped rotor then you should feel it no matter how fast you are going when you hit the breaks, it should just pulsate faster. It should actually feel worse breaking hard at higher speeds. That is unless they are barely warped and you are not feeling it at higher speeds because you have lower end pads and the heat compensates or something.
Ide replace the bearing first just to make sure since they are really cheap before spending a crap load on new rotors.