my dad found an old roadie and he wants me to convert it into a fixie to remind him of the good old days. anyways after servicing the bike is it just a matter of removing the freewheel and putting a fixed sprocket and getting the chailine straight with spacers and what not? i just finished my singlespeed and didn't really focus on what entails a fixie. also, the hub is standard sized and right threaded (or the normal way) so what do i need? fixed sprocket, spacers, lockring, etc...?