Mechanical seat. 5 position lumbar support. Fore and aft adjustment 200mm. Manual adjustment for driver 80-150kg. 60mm seat height adn tilt adjustment. 100mm vertical suspension stroke. Suspension cover. Moulded body contoured cushions. The 524 uses a heavy duty wide base suspension unit with weight capacity of 80-150kg, as well as KAB's largest seat upper the T4. This will give excellent upper body support. * Suspension cover