The Trax Cart has 24 cm (blow-molded polyurethane) pneumatic tires. These tires have a high capacity and are very durable! Welded Stainless steel frame. Wheels are easily removable for storage. (176 lb Capacity) This is an all around cart for soft sand and uneven terrain. The tires are wide and can be deflated for better performance over softer sand and soil. HCC Part # 80044101Plug in style cartGreat for sand and uneven surfaces*Hobie requires a minimum shipping expense for all Hobie endorsed parts. Please contact us directly for volume shipping discounts.