Originally Posted by
jdawginsc
Absolutely agree. But I guess I assumed the OP wanted to transition to 8 speed or at least brifters? I could be completely wrong on that.
He can do that and stay with RX100. But he might not really care about staying with RX100, that's really just an aesthetic choice. It's probably a lot easier to find 105SC or 600/Ultegra STIs and RDs. Me, I like RX100, so I built up a bike around it.