Hey guys, my buddy who has a MXZ 600 just got it back the other day from the insurance company and is fixing it up right now. the stock gears are 24/43.. and earlier this season he dropped the top to 23. he also bought a 22.. so the other night he wanted more bottom end.. so he took out the 23 and threw in the 22. I told him he would probably need a new chain.. there is quite the bow in it. Should he get a smaller chain? he dropped 2 teeth from stock.