The 554B seat belt seat has an integrated 3 point lap sash seat belt mounted above the suspension to avoid lock up as the suspension moves vertically up and down. It also combines a self leveling air valve that automatically sensors operator weight * Pneumatic lumbar support * Backrest angle adjustment * Automatic adjustment for driver, 50 - 120kg * 60mm seat height and tilt adjustment * 125mm vertical suspension stroke * Seatbelt available in both left and right hand side fitment * Integral lap/sash seat belt * Suspension cover