RK Chain Link 520 XSO Blue Rivet Connecting Link Kawasaki_Z400 D1-D4 (2 Cyl) (74-79)_1977 J 1981-1982 Yamaha IT490 K

J 1981-1982 Yamaha IT490 K

B9F) 2007-2009 Kawasaki Z1000 (ZR1000 C7F

best quality sprockets available in the marketplace worldwide

J - USA 2015-2018 Yamaha YZ250 K (5DJ) - USA 1998 Yamaha YZ250 K (5DJ) 1998 Yamaha YZ250 L

5mm bolts) (K73) 2009-2018 Honda NV400 C-J

RK Chain Link 520 XSO Blue Rivet Connecting Link Kawasaki_Z400 D1-D4 (2 Cyl) (74-79)_1977 J 1981-1982 Yamaha IT490 KRK currently has FIVE types of sealed ring chains. Each has its own features and benefits. O ring and RX Rings came first. Each a great product in their own right and broadly similar to the competition's current offerings. After several years of development, RK added the XW range of sealed chains to radically improve chain life and performance. As racing expanded into several different genres, RK also added the ultra thin U Ring and UW Ring sealed