VEVOR Heavy Duty Kayak Cart, 280lbs Load Capacity, Detachable Canoe Trolley Cart with 10'' Solid Tires, Adjustable Width & Top Foam Protection, for Kayaks with Drain Holes of 2.54 cm and Above

1 in.

Based on the product information, the kayak cart has an adjustable width ranging from 110-455mm which can accommodate wider kayaks. The product description states that it has an adaptable width to fit different kayaks.

Based on the product information, the kayak cart has an adjustable load carrier width ranging from 110-455mm (4.3-17.9 inches), allowing it to accommodate wider kayaks.

According to the product description, the kayak cart is equipped with 10'' solid tires that do not require inflation or maintenance.

The product information does not mention anything about maintenance or lubrication for the wheels.

According to the product description, it does protect the kayak from scratches or dents. The cart features foam protection on the support rods to prevent damage to the kayak's bottom and drain holes.