I finally had to respond to the comments that the Tikit's stems are too flexible. I have been testing a large frame Tikit for the last 6 weeks that has had the stem latch upgrade modification done to it. I am 6 ft. tall and weigh 200 pounds. The stem has no more flex to it than any of my full size bikes. I hate it when people who don't own one or haven't recently ridden one make comment like "the stem flexes" when it does not. The Tikit is not a perfect bike but stem flex is no one of its problems. My early 1993 Pocket rocket has much more flex than this Tikit has. Roger