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Head tube angle is one of 3 factors that together determine bicycle tendency to stay in the same direction. The other two are wheel size and fork rake, and with head tube angle they give value named trail . Bicycles with larger trail tend to be stable and hold direction, while bicycles with smaller trail react faster and with smaller input. Given the wheel ...


When the head angle is steeper, the bike becomes more nimble and twitchy. The bike reacts faster to steering input making it prone to oversteer. Road bikes tend to have "steep" head angles in the 72 to 74 degree range. A half degree is more noticeable on bikes with steeper head angles, especially at higher speeds. However, if you're a casual rider than a ...

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