hey dude it dosent realy matter what you get but if you get a disk it will sell easyer when you eventually quit (its going to happern to all of us ) but the hd axel is a different matter if your a harsh rider like me its defo recomended to get one as you dont want the standered axel brakeing, as a matter of the driveshells you can have a standerd one but you need to be runing either a casset or a chris king single speed cog.
Pauly