Home » Sturmey Archer Internal Gear 3 Speed Hub 36H 20 inch for Brompton Folding Bike Sturmey Archer Internal Gear 3 Speed Hub 36H 20 inch for Brompton Folding Bike Sturmey Archer Internal Gear 3 Speed Hub 36H 20 inch for Brompton Folding Bike. Sale price : $99.74 Category : Sports & Entertainment