Originally Posted by
the_tool_man
I've been thinking of building a new commuter with a 1x setup. Do you have to get a special non-ramped chainring up front to keep the chain on at the extremes of chain line?
That, or something to act like the DR to keep the chain from falling off, or both. I rigged one with a pipe clamp and aluminum strip, you can buy a chain guard or chain keeper, or the cheapest way is simply use a cheap front DR and set the limit screws.