These are DID Cam Chains. THEY FIT ALL 50'S AND 70'S THRU 1985 THAT HAD CAM CHAINS. They are the same brand that Honda has used for years. They are the best. 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 7F @ CAM CHAIN INSTALL/TIMING @ 25H CAM CHAIN CONNECTOR LINK SOLD EACH (265R)HONDA 50'S 70'S 90'S AND 110CC'S CAM CHAINS ARE NORMALLY ENDLESS AND DON'T TAKE A MASTER LINK BUT IF YOUR EXPERMINTING YOU MAY BE GLAD THIS IS AVAILABLE THIS IS A RIVOT OR PEEN TYPE CONNECTOR LINK, SO THERE IS NO SNAP CLIP,, YOU MUST PRESS ON THE LINK STRAP THEN POUND OR RIVOT THE ENDS OF THE PINS SO THE LINK STRAP DON'T COME OFF. THIS CAN BE A HUGE TIME SAVER OR YOUR WORST NIGHTMARE IF THE STRAP COMES LOOSE. ALSO DON'T GET TOO RAMMY ON SMASHING THE 2 PINS AS IT CAN ALSO GET TOO TIGHT!! 265R