MK-F020 MK-F025 MK-F032 MK-F040 MK-F050 MK-F063 Bore size (mm) 20 25 32 40 50 63 Accessory With boss in head side 2 3 5 7 13 25 With arm 100 100 200 200 350 350 13 32 Centering location ring Set pin Bolt for cylinder body Rear flange type (including mounting bolt) 133 153 166 198 345 531 Calculation: (Example) MKG20-10RFN Standard calculation: MKB20-10R 250 g 6 g 133 g 2 g 100 g 491