Biologic™ II Frame Geometry

Small wheel bikes have a reputation for “twitchy” handling that discourages many prospective buyers. But“twitchy” handling is the result of poor frame geometry more than wheel size. BioLogic™ II frame geometry is the result of almost 25 years of refinement
by the product team at Dahon, which ranges from professional racers to physics Ph.D’s. We’ve investigated every aspect of frame geometry from seat and head tube angles, to fork offset, to fore/aft weight distribution, to reach, and BB height. BioLogic™ II geometry is found on every one of our compact bikes and makes our bikes the most stable and secure handling folding bikes on the market.