Ive found several threads on this as i am looking for the stock stacks in my bike..Ive found it(i think) but,the prevailing argument is wether the stacks are eur or u.s?? I never really nailed the answer down,i just want the stock stack for 09 yz450(american)..Anybody got that l;aying around? Im tinkering with my setup,sooo;anybody have a badass satck,that would be awesome too! Im +40 b rider.200 in gear, and do Gps also.