Not long ago on my 2009 FLHTC as I squeezed on the front brake it seemed to freeze and would not move. Just the opposite of no brake fluid. The rear brake kept me from going from a small side street into a main street with lots of speeding traffic. Whew! It seems this is a symptom for a broken ABS module. After having it towed to the dealer, they replaced it in short order. Some say this is not common but it does happen. Sorry if this has been covered before.