So my mini velo frame is on route, and I need to start sourcing parts.
Tiagra seems pretty cheap to get hold of, but should I be going 105 or Ultegra instead?
triple or double? And short of long de-railer? compact?
I'm seeing 10 speed cassettes being easiest to get hold of, and then there is hubs :/
So much to re-learn, and I'm forever on google atm