You can either use single bolts, or get spacers to use with the double bolts.
Using spacers does give you a couple of extra options for tuning the chainline (depending on which side of the ring you put the spacers), but you shouldn't need them and most people use single bolts.
Have you got your wheels yet and fitted the cranks?
You can either use single bolts, or get spacers to use with the double bolts.
Using spacers does give you a couple of extra options for tuning the chainline (depending on which side of the ring you put the spacers), but you shouldn't need them and most people use single bolts.
Have you got your wheels yet and fitted the cranks?