Oregon 95vpx micro lite chainsaw chains offer narrow kerf cutting, which requires less saw power than standard cutting systemsfeatures micro chisel cutters have small radius working corners that cut fast and are easy to sharpen. Vibe ban chassis design reduces vibration 25% or more at the handles. Bumper drive links reduce kickback. Lubrilink tie straps help keep oil where it is needed on the chain. Lubriwell oil holes in bumper drive links help carry oil around the full length of the guide bar’s groove. Recommended for saws from 35 to 55cc for bars from 13 to 18 33 to 45cm. Specifications number of drive links 78gauge 0.05 inches 1.3mmhow do i measure the length of my chain? The length of your chain is determined by counting the number of drive links in your chainyour drive link count has a direct correlation to your bar’s lengthbe careful a bar made by oregon may take a different drive link count than that of another producerhere’s a tip count the number of drive links in the chain you have now, and write that number down someplace where you can find itor, if you have an oregon chain in an oregon box, the drive link count is stamped on the flap you can save that flap for future reference make model size cm size inches ryobi ece1841 51 20 ryobi rcs4450 51 20 ryobi pcn4040 51 20 ryobi pcn4045 51 20 the models listed above are for guidance onlyplease check with manufacturer handbook to ensure suitable fit and installation instructions