Crooked Grind, Overcrook Grind, Feeble Grind, and Smith Grind

Crooked Grind
Also known as Crooks, Pointer Grind, or the K-grind after the man to whom the trick is most commonly accredited, [[Eric Koston] or [Karl Watson]]. It is like a nosegrind, but the tail of the board is angled away from the rail/ledge on which the trick is performed, causing the edge of the deck's nose to also rub. Invented by Dan Peterka.

Overcrook Grind
The same as a Crooked grind but the skateboarder ollies over the rail at an angle. It is when the majority if the board is angled on the opposite side of the rail to a normal 'crook' grind.






Feeble Grind
In this maneuver, the back truck grinds a rail while the front truck hangs over the rail's far side. Likely invented by Steve Douglas around 1988.






Smith Grind
This maneuver entails the back truck grinding an edge or rail, while the front truck hangs over the near side of the object,leaving the edge of the deck to rub the lip/edge. This trick was named after its inventor Mike Smith. It is considered by many to be the most difficult basic grind trick.The backside version was originated by deaf Florida powerhouse Monty Nolder.

50-50 Grind, 5-0 Grind, and Nosegrind

50-50 Grind

The 50-50 grind is where both trucks are on the edge. This move evolved from the horizontal-stance carve grind in pools and was taken up on top of the lip by such skaters as Jay Adams, Tony Alva and Stacy Peralta.

5-0 Grind

Pronounced "Five-Oh". In this maneuver, the back truck grinds the rail/edge, while the front truck is suspended directly above the rail/edge. This move is similar to the manual, although the tail may be scraped against the obstacle as well as the back truck, which is not considered proper on a manual.



Nosegrind

In a Nosegrind, the skateboard's front truck grinds a rail or edge, while the back truck is suspended over the rail/edge. It is similar to the nose manual, except performed on a rail, coping, or ledge. Jamie Thomas is one of the few people who can balance a legitimate nosegrind down a lengthy handrail. This move originated on vert, initially in the form of Neil Blender's New Deal (nose pivot to disaster), then by his more advanced progression of said move, the "Newer Deal", which left out the disaster part and just pivoted all the way back in. The "nosepicker" is also a fore-runner of the nosegrind.

What is skateboard?

Skateboarding is a specially designed wooden boards combined with four wheels and eight bearings. System designed to both movement and actions, which are used mainly for skateboarding activities. Skateboarding originated in California, the United States in late 1970. In the mid-1980s they produced and sold throughout the United States.


Skateboard used in a way driven by one leg while the other foot remains on the board. Skateboarding can also be used just by standing on the deck while on the downward slope and allowing gravity to push the board and rider. If you ride with your right foot forward, your balance will be unstable and if you ride with your left leg forward, then your balance will be stable and orderly.


Historically, boards have been appropriate design for both contemporary and trend to the ever growing array of action by the driver / user, which requires certain functionality from the board. Of course, form the board depends on the desired function. Longboards is a type of skateboard with a longer wheelbase and bigger, softer wheels. also there are some basic techniques such as grinding on a skateboard, kickflip, etc..