The fifteen Gl1500a Goldwing Aspencade 1997 (v) Spain / Kph Swingarm component parts are all listed in this schematic.
A sample from the products for the Swingarm include: Brg,tap.17x40x13., Bolt R,swingarm P, Oil Seal,27x43x7, Swingarm Assy,rea.
The lowest price component in this Swingarm parts-list fiche is the Bolt,flange,8x32.