11-28 to 11-32 chain length

challengedavid Posts: 273
edited April 2018 in Workshop
Hi all

i am changing from a 11-28 to a 11-32 cassette
currently have
ultegra 6800 SS mech changing to a ultegra GS r8000 mech to accommodate the 32 cassette

will i have to put a longer chain on to accommodate the longer mech and larger cassette
and if i do how many more links?

front chainset is a 52-36

would be grateful for any advice