Right i've bought a magura for the rear of my bike.
I've set it up and tightened all the clamps as much as possible.
When I pull the brake the slave cylinder slides inside the clamps away from the rim, how can i stop this, also, its happened with 3 different sets of clamps (echo TR, Tensile offset, and magura, if you were wondering I am using the cylinder washers)
Please help its so annoying.