So my grand father passed away last week and my grand mother gave me his 2006 Electra Glide Ultra Classic it's been sitting since around 2015 when he just couldn't get on it anymore and I've gone through it getting her back on the road and I've done it. But the front brakes keep locking up every so often so far I've replaced the line from the master the the calipers, rebuilt the master as well as both of the calipers and of course all new DOT4 fluid and a good bleed but still after a random amount of miles the lever gets rock hard and the brakes are locked to the rotors. I have a hunch that that master may not be retracting all the way allowing the pressure back out off the lines but anyone that has seen this before and may know what is going on please let me know.