Rear brake binding problem!

[Matt P]

I've had a problem for a while with the rear brake on my 900. While out for a ride, it 'pumps up', so there is no movement in the pedal, and the brake starts binding. If I lay off it for a few miles, and just use the front brake, it frees off and is ok. I suspect either master cylinder seals or caliper piston seals, but has anybody had this who can advise which to look at first? Not wanting to spend time/money doing the wrong one first!!
Cheers, Matt.

[fatbloke]

I'm no expert but that sounds like the master cylinder is binding (quite common)
Although I do have a cure! I never ever use the rear brake and
can report no problems with the not using of said thingy

[Stafford]

Have you not read the article in RIDE (the monster edition) fatbloke?
Gives tips on a technique for riding slow whilst using the rear brake.
Unless of course you never ride slowly!