Hi Guys, I'm a lurker since April this year. I bought a 1994 Beta and since day one have struggled with
the rear brake. When I first investigated after hours of unsuccessful bleeding I noticed its missing an oring
the piston. To be more specific, its lacking the circular oring towards the top. I tried all my various rings but
to no avail. Can't find a kit online either (within the US). Does anyone know the exact dims / thinkness of this oring? Its the
one towards the top, not the one on the bottom of the cylinder. I would love me a working rear brake.
Cheers
