I'll kick off - can anyone recommend singlespeed screw on freewheels - I've just bought a singlespeed specific wheelset without the freewheel and am looking for somehting that'll do the job but not too pricey. Needs to be 16t as well.
i have a recommendation for you fixie types. Get yourself a bolt on fixie sprocket from Velosolo. It allowed me to build a cheap rugged fixie as a wheel with an international standard 6 bolt disc mount instantly becomes a fixed gear wheel. I used a hybrid 700c front disc wheel and just fitted and spaced a longer axle with the bolt on sprocket. Easy to fit and remove without any danger of stripping the threads as can happen on a fixie hub. Simple and clever, I like them
You can run 1/8th chain on 3/32nd chainrings no problem. As chain is a wee bit wider than 3/32nd it allows chainline to be not quite perfect between chainring and freewheel sprocket. You cannot run 3/32nd chain on 1/8th chainring but usually 1/8th chainring only found on old cottered cranks