hi , i noticed in one of bob hanson's pics of his very nice world traveler that the stem limit line was about a 1/2 " above the top nut of the headset.is it ok to disregard that limit line a bit?i have a 57 cm c-c frame that i would like to get the bars up about that much higher. yes ,no, maybe? i know they make extension tubes though never have seen one. thanks ...kevin ruberg howell nj usa ..wishing it was a little more like spring here **************Feeling the pinch at the grocery store? Make dinner for $10 or less. (http://food.aol.com/frugal-feasts?ncid=emlcntusfood00000001)