I have a C with a D center stand. The kit came with a bracket that is mounted behind FT106. It carries the holding springs and the stand itself. I just had to drill two holes for the fixing screws of the springs into FT106. I added some spacers between the brackets so the springs could work freely. I'm still using the standard C brake cable. I bought the stand in the 90ies from a guy who advertised it as a complete kit in mph.