hey i have a 660 and i ride a lot of tight trails but my gearing is not so kind on the trails i have to shift up and down every 5 seconds its either really hi first or really low second im looking for sprocket sizes to make riding a little more friendly and not so much of a hassle any help would be great thanks

 

Go up one tooth in the front. You could go with bigger tires also. What mods do you have?