The Bolt,disk,6x17 is the lowest priced item on this Rear Wheel schematic.
Some items from this specific schematic: Axle,rr.wheel, Dust Seal,30x47x8, O-ring,61x2, Rub,rr Wheel Damp.
The twenty-five St1100 Paneuropean 1991 (m) Northern Europe / Kph Rear Wheel component parts are all listed in this schematic.