Hi,

I picked up a vintage chromoly frame. The previous owner rested the wheel-less frame on the floor, so the existing 52/40 crankset was bent out of shape. I have an existing 48/38/28 crankset I want to use on the bike, but what else would I need to change?

I've determined the existing Shimano double front derailleur won't work - it actually can shift to all three gears, but there is chain rubbing when I'm on the smallest front and rear gears because the chain is so low. I can't move the derailleur any lower or it won't clear all three gears when shifting. So I'm guessing I'll need a triple front derailleur.

But, I'm using the existing Shimano friction stem shifters. Will that have enough "pull" for a triple derailleur?

Are there other things to consider?