The Hobie Trax 2-30 Kayak Cart has new 30 cm (blow-molded polyurethane) pneumatic tires. These tires have a higher capacity and are very durable! The rim is a smaller diameter which gives a larger sidewall to prevent pinching and valve damage under heavy loads. The pressure range is double that of the original Trax wheels (now 3-4 lbs) which is easier to maintain. The Hobie Trax 2-30 Cart has a 242 lb capacity. This is the best all around cart for soft sand and uneven terrain. The tires are wide and can be deflated for better performance over soft sand and soil. Welded Stainless steel construction, solid stainless axle. Wheels are easily removable for storage. Also includes cart keeper feature and cart clamps. To use the Trax 2-30 cart with a Tandem Island requires the use of the Tandem Island "Plug-In" Cradle to disperse the load.