Shimano Ritzel 13Z M. SPACER replaces Group CS – HG400 : Amazon.de: Sports & Outdoors
Shimano Ritzel 14Z WITH DISTANCE RING FOR 14 Tooth CS 6800 Sprocket 14-Tooth with Distance Ring for 14 tooth CS 6800 NR. Art, 1Y914100 : Amazon.de: Sports & Outdoors
Shimano Ritzel Unit 19 21Z CS6500 Alt: 10P98050 Mini Display Ritzel 19-21 TEETH FOR CS 6500 Art Nr., 10P98051 : Amazon.de: Sports & Outdoors