These dust caps are what you have been missing, since Sugino decided not to include them with cranksets. While the old type were chrome, these ones are aluminium with a shiny anodized finish, which match quite well to the finish of the Sugino 75 cranks. These really give your cranks a clean look, and keep your bolts and removal thread clean and protected. Available in Black, Silver, Red, and Blue. Price is for 1 pair of caps.