esigned for adults and teens, this is the most comfortable ride around. The extra-large 200 mm air filled rubber tires grab uneven surfaces, while the wide sandwiched deck flexes to carry you smoothly over ups and downs. An integrated back brake system and padded handlebars add to your comfort and control. Maximum rider weight is 220 lbs. Flex Air brings the fun of riding to sidewalks and roads that were once too rough for rolling. Please note, this product features pneumatic (air-filled) tires. It is important to fully inflate both tires prior to use. Correct pressure (80PSI) is in the manual and written on each tire. The Flex Air comes completely assembled, with a patented double-button folding system. To unfold, simply loosen the clamp on the folding mechanism, then push in and hold the 2 buttons on either side of the front wheel. Unfold your scooter and ride. The two-way kickstand can be kicked forward or back when you’re ready to ride. We recommend kicking it forward to ride, so that when you’re ready to park, you can use your toe to deploy the stand. It’s the cool way to park your ride. SAFETY – We recommend that riders wear a helmet.