I replaced my oe 14t sprocket with a 15t Renthal. The gearing on these is pretty short and I felt like if I could get a little more speed out of each gear I would like the feel and possibly close the gap on the Yfz that kept beating me in those Silver lake drag races. I took it for a spin around the block after swapping sprockets and it seems to feel a lot better. Only way to really know would be to drag race that same quad again and compare results. I'd like to hear what others that have tried this feel about it. Wonder how much I'll gain on top end as well. I dont even know what the top speed was previously though.