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From time to time we get questions about front brakes pulsating while braking. Is it bend? Did I mount the rotor wrong? Are my brake pads too worn? Is the rotor warped? It is highly unlikely that a new rotor is warped or even bent when it is new. We have found that there is usually minor things that are making your rotor pulsate. First thing we have noticed is that most rotors when they are packaged at the manufacture still have a little residue (machine oil) left on them from machining them. That would contaminate your brake pads if it is not cleaned off. The oils will work their way into the pores of your brake pads. Making the pads harder to stop the bike consistently. If you have a floating rotor it may need to be broke in for the floating feature to work properly. Some rotor will stiffer rivets so there will not be the movement (floating) at initial use. The next thing to look at is your brake pads. If you put a new rotor on your bike you should always replace your brake pads. Brake pads will seat into each rotor differently. So if you put worn pads on you new rotor you are not getting the surface contact that you need. It may be uneven and creating the pulsating feel. The first thing we do when we get a new wheel for our own bikes is clean the rotors with brake cleaner and a scotch brite pad. Making sure to rinse any dirt and oil from the rotor. We also put new pads on just like you would put a new sprocket on when you install a new chain. Hope this helps. Happy riding

motoxindustires.com
 
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