I'm planning to buy a wr 450 as soon as it touches the ground of Quebec. I might have to ride on studded tires . The dealer advise me to change right away the stock handlebar. He tells me that because of my size(6'2'' 225 pds), the stock unit will not fit me. But before I take what he tells me for granted, I want to know what are the effects of higher/wider/narrower/etc bars? Also what is the most confortable model ? I was thinking of using the stock unit until I wreck it. And then get an after market model, but wich one has the most bang for the $$$$ ?