Why does my rear brake drag the bike down ?

Question

I'll be cruising on my 1986 harley FLH and sometimes I can't get past 60mph I barely touch the rear brake and it grabs and squels and then I can resume speed. Caliper?

Answer 1

Yes, it sounds like the piston may be sticking in the bore.

The other thing it might be is a small piece of crud in the line or master cylinder. It's not as likely, when that happens they usually don't release.

Answer 2

You might be dragging your rear brake pedal.  If not, have the caliper checked for clearance.

Forgive me, but I've been getting it for years, so...buy a real bike.

Answer 3

You didn't by accident put DOT 4 in your bike did you?