This is Oregon's 68210 Power Mate Replacement Rim used on Oregon 12667X, 13916X, 16208, 18200X, 22209, 23706X, 25842X, 26831, 27189X, 28094X, 28187X, 29313X, 30666X Power Mate Rim Sprocket Systems. Also used with Oregon 30672X, 30685X, 35464X, 36868X, 38470X, 68209X, 100757, 102469, 105772X, 106593X, 108565X, 11203X, 111450X, 111590X, 509604X Power Mate Rim Sprocket Systems. For 3/8" Pitch Chain Saws with 7-Tooth Rim Standard 7 Spline (Sd7) Sprocket System. Replace rim every two chain loops.
