I am planning to install Magura HC1 radial master cylinders on my GRiSO 1200 SE from 08/2012.
The diameter of the brake master cylinder is clear, as only the 18 mm version is homologated by the german TÜV, our technical control, which is due every two years.
For the clutch master cylinder there are no legislational requirements. Magura recommends to take 1 - 2 mm more diameter than the original size. There are clutch master cylinders in 13 and 16 mm. What are your experiences regarding the diameter.
As my GRiSO is completely dismantled for the moment, I can' t do any road tests. I want to rebuild it over the winter for next season in the way I like it
So long, Benedikt