Bike share bikes usually aim for wide durable tires, where this looks like a 23 mm tire at most. (bicycledesign.net)
255 mm tires go a long way toward holding grip, while the rear axles combine air suspension with adaptive dampers. (cnet.com)
At the front we find 255 mm tires while in order for the 285 mm rear tires to fit under the wings, these were widened modestly with small flaps. (mercedesblog.com)