While riding home last night, my brake lever fell off. It's an older item on an older bike. What's the process to re-attached one of these?
Bicycles Stack Exchange is a question and answer site for people who build and repair bicycles, people who train cycling, or commute on bicycles. It only takes a minute to sign up.Sign up to join this community
You say you've lost some of the other bits. This kills the brifter.
Seriously, just buy a replacement, probably you can find it used for $50. Normally you'd redo the bar tape in order to replace the entire shifter, but if you want to avoid that, you could probably swap the entire internals of the new unit into the old body (I say probably because it may be a bit fiddly and perhaps not worth the trouble, and everyone needs new bar tape anyway!).