Best way to line up my chainwheel to the freewheel..?
So I've got an SS conversion that is pretty much ready to go, except that I don't have a chain on it yet. The chainwheel on my crank doesn't exactly line up with the cog on my single-speed freewheel. If it were about 1/4" (possibly slightly more) further from the hub, then it would line up. Is there any sort of little spacer out there I can thread onto the wheel before screwing on the freewheel that will position it a little farther outward? Or is using a different crank set (to reposition the chainwheel instead of the freewheel) the only option?
As a side question -- since I am using a wheel that was designed for a multi-cog freewheel, it is dished. Does this mean that the freewheel will inevitably be closer in to the center of the wheel, or would an SS-designed wheel place it in about the same place?
Thanks for any and all advice.