Thanks for all the great advice, Ill have to remember to call myself a toad or something in the next post! Didnt realize the impact of saying I’m an engineer would have. I didnt explain myself very well in that the other reason a formulae like many above mentioned is very helpful is I’m looking at changing a cassette and want to know if I need a new chain or if the existing, brand new chain, is long enough. I also have a 1X setup that had a 32t crank (9-46 cassette) that was changed to a 28t and a new chain. When I found the 28t to low my LBS installed the 32t and left the same chain. I’m having some minor issues and wonder if the chain is to tight which is another reason I was looking for a formulae. Txs
P.S. yes there is a formulae for virtually everything....so says the engineer
Last edited by Gasman1440; 01-28-21 at 09:58 AM.