GSXR front brake master cylinder piston diameter

[blackkat98]

I realize this is not a GSXR forum, but I know there are very knowledgeable people here so I'll ask anyway. Does anyone know what size piston/bore the late model GSXRs use in the front brake master cylinder. There is an aftermarket company that makes radial master cylinder kits in 14mm and 5/8" piston diameters. Which one is it???

Anyone, anyone???

[md86]

I'd look on one of the bike mags specs pages . They seem to put that technical info in their articles when they print them , so they MAY be one their site , too ...