hi all,

i just bought a new set of wheels for my commuter that uses a formula flip-flop hub. i intend to run the drivetrain as singlespeed. what exactly do i need for a rear cog?

i assume i need a freewheel since the hub is not a freeehub correct? can anyone point me to what i need and where to buy. i'm looking for 16 or 17t

thanks in advance!