The Different Types of Longboards
Drop Through board’s main component is the way the trucks are positioned on the board. Instead of having the board rest on top of the trucks (the component of the board that holds wheels and elevates board off ground), drop through boards have the board go through the trucks. Look at the above image for reference. Instead of the trucks being below your feet they are now level with your feet. This structure lowers your center of gravity closer to the ground which is better for stability. These boards are great for downhill riding as well as free style riding. This construction of the board allows the rider to be lower to ground for more stability, while also allowing them to have the freedom to slide without worrying about wheel bite (when the wheels make contact with the board).
On a drop top board the trucks are beneath the board, however the deck of the board curves down. This brings the riders feet closer to the ground. This makes pushing more easy and requires less effort from the rider. It also lowers center of gravity which helps with stability especially at higher speeds. It's low nature makes it as if the rider is just gliding along the pavement. This board is great for anyone looking to do some long distance longboarding.
The Double drop construction on a board is essentially just a combination of the 2 structures above. It has a drop through deck and a drop top which allows this board to come extremely close to the ground. This proves for an effortless and smooth ride with great stability. Downhill riders will find themselves having unmatched stability at high speeds. This style is not ideal for riders who plan on making aggressive maneuvers and slides because it is easy to scrape the board on the ground due to its low structure.