Originally Posted by
merlinextraligh
I'd resize the chain. Far better to have too much chain so it wont wrap in the small/small combination, than not enough to go in the big/big.
Someday you'll inadvertently shift into the big/big, and it can be a very expensive misshift.
I've always wondered exactly what would break if your chain is too short and you shift into big/big. Would the derailleur hanger snap? Would the chain itself break? Would the Di2 servos get damaged trying to move the chain into a gear it can't fit on? Not sure, don't really want to find out myself.