Originally Posted by
Mr. 66
Oh my, that setup looks like a problem waiting to happen.
Shouldn't you at least have horizontal ends for single speed chain tension adjustment?
The OP is using a "magic gear" setup. That means the chainring wrap + cog wrap + (distance between the chainring and cog)2 = a whole number of inches. The biggest issue with the setup is that chain wear will become intolerable sooner than on a tensioned or variable distance drivetrain. See
this handy calculator for determining ring and cog combinations that work with your chainstay length.
Previous ''Fixed gear with Vertical Dropouts" threads acknowledge that it's a hack to work around the fixed axle position.