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by anon776 1857 days ago
On a charge, 15 miles but depends on your weight and the terrain. My son put 22 miles on one once on a single charge.

Safety wise, yeah wrecks on onewheels can be bad. If you are a speed demon you will break something. If you are careful you should be fine. A set of fangs on the board and a pair of wrist guards are highly recommended. And a helmet at all times.