Just wondering what gearing you 4 speed 2003 450 riders are using. I believe I'm running 14/53 right now. Way to slow. It tops out around 70 but gets there in a hurry. I was thinking about getting 15/48. Is that too much? I want it to keep up with the newer 450s. Somewhere around 90 top speed. I want to be able to keep on riding tight trails too. I think I will be alright because of the new TA pipe. It pulls gears alot better in the low end. Another reason is so I dont rev it as much because that is why I think it blew up. Just wanted to know since I've never changed sprockets that drastically. Should I go 14/47 or 15/48? I don't know what to expect.