Mega SS Freewheel

don't spend $75 on that shit le yorgo!
No idea of the quality inside - polo will kill a suspect freewheel.

...you can spend half on a smaller chainring and other half on a half-decent 18T.

144 bcd. Yorgo already has the hard-to-get 41t, smallest available...
And who makes a half decent freewheel? I can only find shite or White Industries.