The most reasonably priced component used on the Gs450eu 1988 (j) Germany (e22) Front Brake Hose (model J) is the Washer(10x15x1.5).
This Hose,fr Brake is the most expensive of the items that make up this Front Brake Hose (model J) assembly.
Some items from this specific schematic: Washer(10x15x1.5), Hose, Brake (flat Handlebar), Clamp, Hose Lh, Bolt 6x12.