Downhill Longboard design and structure

Longboard skateboarding has been gaining a lot of attention as the sport has been progressing to an extreme level. Downhill longboard racing. 

Huge preparations are made before anyone can compete. Safety is paramount. Special clothing that usually looks like a full leather suit that you see from motorbike racers. Knee Pads, Shoulder pads, Skateboard shoes, and even a wicked looking Race helmets that covers the entire face. You may also see race helmets that looks like a space helmet.

With all the safety precaution that happens before the race, any experienced rider should be able to choose the best downhill longboard.

Lets say that you're the rider and you're gaining speeds of 30-60 kph, wouldn't you feel that there should be an area for both foot to rest while still maintaining control of your board. Currently, special longboard decks for downhill has curved deck that inclines up so you can rest  both your front and back foot. It is the a foot space which usually points up for the nose and a slightly downward incline for the tail. The nose is the front part of the board and the tail is the back part.

Concaves play a part as well. To explain this, it is just a curve on the deck where you can place the ball of your foot perfectly as if it is cupping it in place.

Aside from this, the deck has a dropdown design which makes you feel closer to the ground for control over high speeds. Meaning there is only a slight effort needed from the rider to apply those tight turns. But the distance to the ground for side grab should also be accounted for. Some boards don't really go that low now just so the hands of the riders wont scrape the pavement on turns and maneuvers.

The construction of the decks plays an integral part as well. Maple, Bamboo and Carbon have been used for these decks. Carbon fibre is a bit more expensive due to the lightness of the overall board but it still the rider preference that matters.

The angles of the truck placement within the decks plays an important role in the stability and performance. Some decks have 10° wedging on the nose and a -10° on the tail. This can be compared to a front wheel drive car. Meaning, you don't have to worry about your back foot and just rely all the steering on your front foot.

Then comes the choice of wheels. A rule of thumb in longboarding, softer wheels grip better and harder wheels are best for slides.

There's a lot of videos online that will show what I described. You'll definitely spot it and understand why they chose those strange looking longboards.