I've tried searching around but can't find a definitive answer as to the pros and cons of running a chainring the other way round.
Obviously if it's offset/dished then it'll affect chainline. And if it's ramped and pinned then it'll not help shifting.
The bike I'm interested in this for is fixed however, though I sometimes set it up with a freewheel block at the back. Either way, the front chainring is not offset and definitely not ramped or pinned. It comes from a time before that existed. Its got an obsolete Stronglight BCD actually (122) which is why I'm interested in seeing if I can make it last longer.
Assuming, for a moment, that it was running a freewheel at the back and therefore the only wearing effect on the chainring was forwards, what would flipping the chainring over do? Is it as simple as increasing its usable life? Surely it makes a difference that the other side of the tooth is mis-shaped?
Does it make a difference if you're going to run the flipped chainring on a fixed drivetrain? I imagine not because however much you resist forward motion through the pedals it can't be as wearing as forward cos you spend most of the time going forward.
Aye, so any experience or technical wisdom would be great