I'd just do cable discs ...
I know right? It just feels easier and less faff to chuck a bar end shifter on. And would mean two bikes move up to 11 speed. Old cross stuff has had a hard life of not being looked after well for at least 4 years.
I bet for the price of a bar end shifter you could get Claris full grouppo
@Chalfie started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
I'd just do cable discs ...