Hi All I have bought a second hand Merida sub 60 with a mix-match of Shimano derailleur components. I have been looking at Microshift MARVO XE, which seems to be their latest offering. The set of three items (back RD-M64L, front FD-M64 and selectors TS82-9)come to about R700. Has anybody got any experience with this kit? Regards Sander