LONGBOARD

A longboard is a type of sports equipment somewhat similar to a skateboard, but much longer. Often faster because of wheel size, it's commonly used for cruising, downhill racing, slalom racing, sliding, and transport.
 

There are four types of longboards:

Pintails

The pintail shape is used to prevent the wheel from coming in contact with the board while still providing ample footspace. Pintails are most commonly used with top mounted trucks. They are also good cruising boards.

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Drop-Through

Drop-Through boards, not to be confused with a double drop deck, have a cutout in the deck, allowing the baseplates of the trucks to be mounted through the deck. The lowered platform allows for greater stability at high speeds.

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Hybrid

These kind of longboards include wheel cutouts which provide room for the wheels to turn at sharper angles while avoiding wheelbite. Hybrids also tend to be shorter than other longboards, which allows the rider to be more stable.

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Cruiser

A most common deck shape, these have a somewhat similar shape to normal skateboards, in that they have a "kick-tail" on the back.

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Modalities:

  Caarving - Freeride
It involves skidding down a slope either by choice or to correctly enter the curve at the beginning freeride 
wheels 78 are used hardness forward as being tougher wheels do not stick to the asphalt. 
  Downhill
This is down as quickly as possible by steep roads.

  Cruising
It is simply getting from one place to another , for fun or as a means of transport.

  Freestyle
It consists of skateboarding tricks and other own longboard .

Bartolo Peralías Valderas and Juan Fco. Fuentes Loro