Ducabike Ducati 848 1098 1198 Streetfighter Adjustable Rear Linkage The center nut allows you to quickly adjust the height of the bike. As used in SBK racing. CNC machined billet Aluminum. Hard anodized. Fits Ducati 848 1098 1198 Streetfighter Includes Ducabike's full warranty Made In Italy by Ducabike Billet Parts