Going to a larger rear sprocket will give you a little more torque on the low end, but you will loose some on the top end. My 9 year old son rides a 06 KLX 110 and I have been thinking about putting a hydraulic clutch on to convert it to a fully manual shift. Some food for thought.Want to get more out my son's 110 on the low side. Just wondering what people are running for Sprocket sizes. Will a couple more teeth on the back get rid of notorious bog off the start.