Originally Posted by
dsbrantjr
Poor idea IMO, you are likely to forget and shift into that combo, likely causing damage if the chain is too short.
Not my ideal either, but the OP was asking how it could be made to work. Caveat Emptor.
If it were me and the 6700 didn’t do the job, I’d switch to a Deore RD. Longer body geometry = easier to work with larger rear cogs.