Hi I posted earlier about loosing pressure in my brakes and I figured out that the master cylinder is leaking. I have a 99 kx 250. I was thinking about just replacing the whole unit with a magura hydraulic brake. Should I do this or try and rebuild my old one? If I do buy a new one there are two different kinds one for a piston diameter of 11mm and one for a piston diameter for 10.5mm. What one is correct?(if the magura brake assembly would even work). If I decide to rebuild it should I just order all the seals and stuff like that from a oem kawasaki dealer or are there kits that already has all the parts I need? Hope someone can help me. Thanks