Thats the problem Dan i'm not sure if these are from a 450 or notdanWI said:I'm not that knowledgable on the fork K- diffs BUT i would be really hesitant to mix 'n match the 2 style of forks! The different dampening rates coudl make corners really interesting.... if your interested, I do have several fork inners that match both styles. As for the brackets, which caliper are you planning to run? that will determine your bracket.... hope this helps, danWI