As it says in the title.
Also, can they fit different pegs or not, cause everyone i know rides park and have stock nitro extremes so i don't know. I was thinking maybe the new madd pegs would fit but i don't know.
Get the Vertx SMX, cause it has an intergrated starnut and it is CNC'd correctly. They fit Lucky pegs, but if you want other pegs, you could just put a spacer on and then run the pegs.
I say lucky, watch my review for some more info http://www.youtube.com/watch?v=4XTqcWLclxk
remember its all preference, dont let somebody tell you not to get a vertx smx because THEY dont like it, get what YOU want not what somebody else wants you to get