Today I switched back to my 14t sprocket I wanted to get more top end, I dont know what the hell people are talkin about when they say these things dont have the low or mid power I have spent a lot of time on a YFZ and and they feel about the same to me I have not spent much time on a 450R but I suspect it to is real close but I wanted to check and see what sprocket combos everyone is running and what kind of riding you do. I mostly ride desert and dunes.