Determining chain length when going beyond recommended Chain Wrap
It seems that this should be simple, but I wanted to make sure before I break my chain to the proper length.
I have a rear derailleur that can wrap 36t (suntour Vx-GT). I am planning to change my gearing that would require a derailleur that can wrap 38t.
In order to make sure my chain isn't too long, instead of using the technique of subtracting two links from the length of a chain wrapped around the big ring and big cog, I should instead wrap the chain around the big ring and second largest cog and subtract two. Right?
If it helps, my gearing is: 52/42/28, 14-28 (14/16/18/21/24/28).
Thanks! And it goes without saying that I know not to shift into the big/big or small/small.