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Affordable lively performance. The most advanced recreational wakesurfer O'Brien has ever made, the Ally delivers near-epoxy board performance in a durable, less expensive construction. The Ally has softer edges that won't ding the boat (or your shins), and offers performance on any ride. Designed to be a wakesurfer for riders of all skill levels to enjoy. Ally 56: 4'8"L x 20.25"W. For riders up to 200 lbs.