I just bought a new KFX 450 about a month ago, ridden it maybe half a dozen times and already the transmission took a dump!!! This thing has not been raced just rode around on local trails. I went to shift to third and it just made a nasty crunch! This is not my first problem with it. Right after I bought it, It just decided to quit running about 5 miles back in the woods. It just cranked and cranked with no good results. Then the fuel tank leaked. I bought this thing thinking that I was going to have good luck with it but it has really disapointed me so far. About the best part of it is that it looks really good cleaned up sitting in my garage. Now I find out most of the parts I need are on backorder. I do know one thing, once this bike is back from the dealership it is GONE. Sorry to ramble just a little frustrated! It has been at the dealership way more than I have ridden it!