I have a 2012 kx450 and have an opportunity to pick up some basically brand new 22mm offset triple clamps for $100 top and bottom. My question is that the guy selling them says they will fit 06-12 450 but on rg3 website this doesn't look true. any one no what the truth is about what year the clamps fit what year bikes? i think is 06-08 and 09-13 is this true? and can you use the stock stem with RG3 clamps?