Lol I thought you were talking about the footwear....

Anyways, I have freewheels on all my mid range fixed bikes, they came stock that way or from their old owners ; but I never use them... I just keep them on there in case of a emergency (hey who knows) because I have brakes on all my mid range bikes for my commutes...

But for my nicer bikes, I have B43's laced to high flange phil fixed/ fixed; 17T and 19T/21T....