I put the smallest rear sprocket I could buy on it, which is 5 less teeth on the rear than IMI.Originally Posted by motobum
I am probably 6-8 teeth off from where it needs to be with the stock motor.
The 450X has a wide ration transmission, and Jeff Winter on his CRF450X/RS125 is 11(ish) teeth taller than I am and his works well at Pueblo.