Sample new Personal Transportation Devices (PTDs) on a guided tour around Chattanooga. ASI offers a range equipment, from electric scooters to mini e-bikes to mini-Segways, so there's something for everyone to try. ASI Adventure Guides are experts on all our gear. Overall experience is about 90 minutes long. Includes safety briefing, gear selection, safety gear fitting & PTD training. A minimum of 2 guests is needed for this activity.