neither i believe that the finish you see on them is just the aluminum finish. if you get the crested bars i beleive the part that is raised is polished and then the rest of the bars are the regular aluminum finish. you could always get some chromed steel bars. i have the nitto threadless brass stem and steal bars. i run my bars real skinny too. (36's) if you live in an area with alot of traffic where you will be shooting inbetween cars i recomend you get some super skinny bars. the 36's are the same width as your pedals,