... . In high quality, reasonable price, Centres (mm) Fixings, R1 and R2 versions Fixings, R3 version Length overall (mm) Height (mm) Reference ... version R1 Reference version R2 Reference version R3 Weight version R1 (g) Weight version ... R2 (g) Weight version R3 (g) 55 M5 M5x45 67 40 ...