Originally Posted by
Madeupname
How long is a seven speed bike chain?
Chain length depends on your specific gear range and chainstay length. If you have the old chain, trim the new chain to match. Otherwise, this may help:
https://www.parktool.com/en-us/blog/...-length-sizing
Do I fix the derailleur cable first, or put the chain on first??
It doesn't really matter, but you'll need the chain installed in order to adjust the derailleur or check its adjustment.