The most expensive part in this assembly is the Case Comp,rear.
Parts such as the Rear Case: Oil Seal,28x42x7, Brg,ball 32x65x17, Bearing,ball Radi, Cover Comp.,rr.ca are included in the St1100a 1997 (v) Australia / Abs Rear Case parts fiche.
With eight applications this Bolt,flange,8x45 is the most specified part.