Quick question, y'all. I am going from a stock 40-tooth rear sprocket to a 52-link rear sprocket. Stock chain length is 104 links, according to the book (the stock chain is long gone, so I can't count the links. The bike came with no chain). My new chain is 120 links. How many links do I need to cut from the new chain to make it fit? Should I cut it to 116 links (104 stock links plus 12 extra teeth? When I check the chain to the bike now, with everything loose, it seems like I could easily cut six links off the new chain and it would fit, but I don't know how that math would work. Thanks for your help.
Pat
Pat