Originally Posted by
bikemig
Good call on the cable stop, thank you. Yeah I agree that a top pull FD is likely to work better but I'm not sure if the MTB FDs which I think are dual pull will work with 46/36/24 rings. I don't believe--and I could be wrong--that the road type triple FDs are top or dual pull.
It really shouldn’t be an issue. You are really only asking the derailer to move the chain on a slightly larger chainring. There are lots of comfort bikes out there using MTB derailers on 48 tooth chainrings.