In this schematic the "Bolt(8x21)" is used most often.
Parts such as the Front Wheel: Bolt(8x21), Valve Assy,wheel Rim(tr412), Tire,fr,130/70, Spacer,fr Wheel Bearing are included in the Vzr1800 Boulevard M109r 2008 (k8) California (e33) Front Wheel parts fiche.
The Bolt(8x21) is the lowest priced item on this Front Wheel schematic.