This new bucket-chair has a sporty look with premium comfort. Flip-up bolster at the front provides elevated seating for improved visibility and better slow-speed manoeuvring. An innovative suspension at the core in connection with a luxurious seat pan cushion absorbs bumps up to 3 g (!) without transferring this shock to the user. More than 70 mm (3") suspension-travel assures the user a smooth ride with maximum comfort. Inserts for ¼"UNC screws To use metric screws we recommend our aluminium adapter-plate with metric threads for PÖRTNER /ZWAARDVIS ancillary parts.