A: Pressure retention spring/check valve in the master? From: farna@xxxxxxx Subject: Re: Matador Brake Questions To: mail@xxxxxxxxxxxx Message-ID: <ADVANCES62A1XvpFVjC00000026@xxxxxxxxxxxxxxxxxxxxxxx> Re: the bleeder crack. I couldn't figure out why my motorcycle front brakes (dual single piston calipers) were dragging for a while. I had switched to silicone fluid and been running it for a couple months when they started dragging. Would be fine on the way in to work, but drag bad on the way home. What's with that? as the summer wore on it got worse -- so bad I had to pop the bleeders to drive home! Rear disc brake (single two piston caliper) had silicone fluid in it also and NEVER had a problem. I'll just hold off and see if anyone guesses the problem correctly. It wasn't the brake lines!