I have the Trax-2 cart with the low pressure inflatable wheeleez. It does well on hard surfaces, OK on firm sand, OK on soft marshy grass surfaces, but is still a bit difficult in soft dry sand. I am sure it is better than hard rubber tires in sand, but given the choice of a beach launch across 25 yards of sand or pedalling another few hundred yards to a concrete boat ramp, I go for the ramp. The only problem I have had was one flat tire due to a breakdown in the rubber with some fine cracks and consequent leak. The cart is only used for launching, and is stored in a garage wen not in use, so I have no idea why one tire would go bad like this within the first year. Hobie replaced the tire on warranty and there have been no problems since.
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