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A GuestI bought this after reading several reviews suggesting that it would help with traction and or climbing. At first it felt weird, but after a few hour in the saddle it felt normal. If the there is a traction improvement it is mild. My perception is that on long climbs it does feel better. I went back to a round chain ring after several days and hated the feeling of the round ring on long climbs. Finally, it seems to me that i have less lower back pain after long rides with 2000-4000 feet of elevation. I am completely prepared to believe that the perceptions are purely psychological. However, half of challenging riding is psychological. So, if using this ring is "psyching" me into doing better, then GREAT.