| And again the point is missed, its not just the piston diameter but the combination of the piston diameter and the lever ratio that also plays apart.
Magura recommend the 195 radial m/cyl with a 16mm diameter for bikes with two 4-pot calipers
Brembo recommend their 16 X 18 and 16 X 16 m/cyls for bikes using one 4-pot caliper
Checkout the Desmo Due Paddock on Facebook | 
skidlids
Threaded Mode