The most reasonably priced component used on the Gsx1150ef 1985 (f) (e06) Steering Stem (gsx1100ee/ef/eg) is the Washer.
A sample from the products for the Steering Stem (gsx1100ee/ef/eg) include: Dust Seal,steering Upr, Cover, Fork Rh (black), Bolt 8x45, Nut,stem Head.
The most expensive part in this assembly is the Stem,steering.