Wheel spacers are very useful to achieve that ideal flush fitment, or if you need some additional clearance with an aftermarket wheel setup. There are two different styles of spacers. One being the bolt on spacer, which attaches to your factory lug studs, and adds a new set for your wheel to be mounted to. The second style is a slip on, which will be installed on the existing studs, and sandwiched between the rotor, and wheel. The slip on spacer may require extended studs.
