Originally Posted by
70sSanO
Edit added: 10 speed cassettes are old technology. That in itself will cut your market drastically.
+1. Campagnolo moved from 10 speed to 11 speed for its top end groups about 15 years ago. Shimano's current 10 speed offering, Tiagra sits well down in its component hierarchy. I don't even know if SRAM has any 10 speed road components
10 speed isn't going to be attractive