2013 st120 on cr500 brake issue.

[gpenny]

I have a 1999 cr500 with a 2013 st timbersled kit. The brakes are hard as a rock as long as it doesnt move. If i ride it for a bit the master needs to pump a few times to get brakes again. I did a runout check on the rotor and its .007 min to max. Are the newer calipers made with smaller pistons?. Timbersled lists the same caliper for 2011-2015

 

[M5-]

Try clamping your brake lever on overnight with a bungee cord then next day top off your master cylinder. It can be a process getting all the air out. If you dump your bike and your master isn't full air can go back into the system sometimes.


M5