The sides that are visible when on the bike are then highly polished as a nice finishing touch.
Being stainless steel they are hard wearing , won't rust and will keep their looks for years.
This sale is for
2 x Stainless steel swing arm dust seal cover to replace 61262-15000
2 x Swing arm dust seal o rings to replace 09280-30001
Quality Stainless Steel Fasteners Made In The UK
Classicbikefasteners.co.uk