82 LINK SUPER HARDENED RIVOTED ENDLESS CAM CHAIN I AM GOING TO SAY THESE ARE AS GOOD AS A DID MADE IN JAPAN CAM CHAIN, AND FOR THE BUCKS WELL WORTH THE NAME TRADE OFF 82 LINKS for sure fits ::: ALL Z50A'S ALL Z50R'S ALL XR50'S ALL CRF50'S ALL XR70'S ALL CRF70'S ALL CT70'S ALL XL SL CL 70'S ALL ATC70'S ALL TRX70'S ALL LIFAN AND ZONGSHEN 50'S AND 70'S AFT7F SEE THE "O" MARK AND INDEX MARK BETTER HERE FOR SETTING CAM TIMING THEN JUST HAVE THE FLYWHEEL ON THE "T" MARK @ CAM CHAIN INSTALL/TIMING