mod

Does anyone have any experience putting 6th gear out of an excf450 in an sxf 450 motor. Mine is us spec 2016, 5 speed already. Thinking new shift barrel, shifter fork and gear wheels should do it?

So I've been doing some silly **** lately... Sorry if this isn't everyone's cup of tea but i've been having fun :D I took strapped her to an RV and left Pennsylvania for California this summer... if you haven't, come here, the roads are phenomenal: Anyway, I have more to do yet (tires...