Heavy-duty fabricated frame. Ideal for heavy carrying capacities and towing. Top plate drop forged with a kingpin less swivel mechanism. Available in 100mm, 125mm, 150mm, 200mm and 250mm. This frame is available in a swivel brake ( from 125 mm upwards ), swivel and fixed. Heavy-duty type wheels are used in this frame for much higher capacities. Wheels available are polyurethane, rubber, nylon, cast iron, phenolic heat resistant and more. This is also available in a wider frame to take a 75mm wide wheel. The wider frame is available only in 200mm and 250mm.