I somehow lost the reservoir cap on my rear HFX-9 a couple of years ago. I got a new one, a bleed kit and re-bled both brakes, replacing the fluid. I noticed on the trail today that my rear brake starts to grab about 1/2" higher in the lever stroke than the front.

To remedy this, do I have to just crack the bleeder and bleed that much out of the system to adjust this, or is there an adjustment somewhere else to fix this.

Oh and the reason I didn't notice before is the bike's been hanging unused for almost 2 years.