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definitions - Skateboarding

skateboarding (n.)

1.the sport of skating on a skateboard

Skateboarding (n.)

1.(MeSH)Using ice skates, roller skates, or skateboards in racing or other competition or for recreation.

skateboard (n.)

1.a board with wheels that is ridden in a standing or crouching position and propelled by foot

skateboard (v.)

1.ride on a flat board with rollers attached to the bottom

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definition of Wikipedia

synonyms - Skateboarding

Skateboarding (n.) (MeSH)

Ice Skating  (MeSH), Skating  (MeSH)

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phrases

-900 (skateboarding trick) • Aerials (skateboarding) • Benihana (skateboarding trick) • Casper (skateboarding trick) • Caveman (skateboarding) • Christ Air (skateboarding trick) • Dark slide (skateboarding) • Disney Sports Skateboarding • Disney's Extremely Goofy Skateboarding • Evolution Skateboarding • Freestyle skateboarding • Freestyle skateboarding tricks • Go Skateboarding Day • Good and Evil (skateboarding video) • Grabs (skateboarding) • Grinds (skateboarding) • Impossible (skateboarding trick) • King of the Road (skateboarding) • List of skateboarding brands • List of skateboarding terms • Nike Skateboarding • Nollie (skateboarding trick) • Ollie (skateboarding trick) • Pump (skateboarding) • Skateboarding 900 • Skateboarding duck • Skateboarding sponsorship • Skateboarding styles • Skateboarding trick • Slalom skateboarding • Slides (skateboarding) • Street skateboarding • The Simpsons Skateboarding • Transworld Skateboarding • United Kingdom Skateboarding Association • Vert skateboarding • Welcome to Hell (skateboarding) • World Cup of Skateboarding • X Games skateboarding 2004 street

analogical dictionary



Wikipedia

Skateboarding

                   
  Skateboarders in Beijing, China
  A skateboarder in mid flight performing a trick

Skateboarding is an action sport which involves riding and performing tricks using a skateboard. Skateboarding can also be considered a recreational activity, an art form, a job, or a method of transportation.[1] Skateboarding has been shaped and influenced by many skateboarders throughout the years. A 2002 report found that there were 18.5 million skateboarders in the world. 85% of skateboarders polled who had used a board in the last year were under the age of 18, and 74% were male.[2]

Skateboarding is relatively modern. Since the 1970s, skateparks have been constructed specifically for use by skateboarders, bikers and inline skaters.[3]

Contents

History

1940s–1960s

  Skateboarder in Grants Pass, Oregon

Skateboarding was probably born sometime in the late 1940s or early 1950s when surfers in California wanted something to surf when the waves were flat. No one knows who made the first board; it seems that several people came up with similar ideas at around the same time. These first skateboarders started with wooden boxes or boards with roller skate wheels attached to the bottom. The boxes turned into planks, and eventually companies were producing decks of pressed layers of wood – similar to the skateboard decks of today. During this time, skateboarding was seen as something to do for fun besides surfing, and was therefore often referred to as "Sidewalk Surfing".

The first manufactured skateboards were ordered by a Los Angeles, California surf shop, meant to be used by surfers in their downtime. The shop owner, Bill Richard, made a deal with the Chicago Roller Skate Company to produce sets of skate wheels, which they attached to square wooden boards. Accordingly, skateboarding was originally denoted "sidewalk surfing" and early skaters emulated surfing style and maneuvers. Crate scooters preceded skateboards, and were borne of a similar concept, with the exception of having a wooden crate attached to the nose (front of the board), which formed rudimentary handlebars.[4]

A number of surfing manufacturers such as Makaha started building skateboards that resembled small surfboards, and assembling teams to promote their products. The popularity of skateboarding at this time spawned a national magazine, Skateboarder Magazine, and the 1965 international championships were broadcast on national television. The growth of the sport during this period can also be seen in sales figures for Makaha, which quoted $10 million worth of board sales between 1963 and 1965 (Weyland, 2002:28). Yet by 1966 the sales had dropped significantly (ibid) and Skateboarder Magazine had stopped publication. The popularity of skateboarding dropped and remained low until the early 1970s.[4][5]

1970s

  A skateboarder in Tallahassee, Florida

In the early 1970s, Frank Nasworthy started to develop a skateboard wheel made of polyurethane, calling his company Cadillac Wheels.[4] Prior to this new material, skateboards wheels were metal or "clay" wheels. The improvement in traction and performance was so immense that from the wheel's release in 1972 the popularity of skateboarding started to rise rapidly again, causing companies to invest more in product development. Nasworthy commissioned artist Jim Evans to do a series of paintings promoting Cadillac Wheels, they were featured as ads and posters in the resurrected Skateborder magazine, and proved immensely popular in promoting the new style of skateboarding. Many companies started to manufacture trucks (axles) specially designed for skateboarding, reached in 1976 by Tracker Trucks. As the equipment became more maneuverable, the decks started to get wider, reaching widths of 10 inches (250 mm) and over, thus giving the skateboarder even more control. Banana board is a term used to describe skateboards made of polypropylene that were skinny, flexible, with ribs on the underside for structural support and very popular during the mid-1970s. They were available in myriad colors, bright yellow probably being the most memorable, hence the name.

Manufacturers started to experiment with more exotic composites and metals, like fiberglass and aluminium, but the common skateboards were made of maple plywood. The skateboarders took advantage of the improved handling of their skateboards and started inventing new tricks. Skateboarders, most notably Ty Page, Bruce Logan, Bobby Piercy, Kevin Reed, and the Z-Boys (so-called because of their local Zephyr surf shop) started to skate the vertical walls of swimming pools that were left empty in the 1976 California drought. This started the vert trend in skateboarding. With increased control, vert skaters could skate faster and perform more dangerous tricks, such as slash grinds and frontside/backside airs. This caused liability concerns and increased insurance costs to skatepark owners, and the development (first by Norcon, then more successfully by Rector) of improved knee pads that had a hard sliding cap and strong strapping proved to be too-little-too-late. During this era, the "freestyle" movement in skateboarding began to splinter off and develop into a much more specialized discipline, characterized by the development of a wide assortment of flat-ground tricks.

As a result of the "vert" skating movement, skate parks had to contend with high-liability costs that led to many park closures. In response, vert skaters started making their own ramps, while freestyle skaters continued to evolve their flatland style. Thus by the beginning of the 1980s, skateboarding had once again declined in popularity.[5]

1980s

  Skateboarder at Skateistan in Kabul, Afghanistan

This period was fueled by skateboard companies that were run by skateboarders. The focus was initially on vert ramp skateboarding. The invention of the no-hands aerial (later known as the ollie) by Alan Gelfand in Florida in 1976[6] and the almost parallel development of the grabbed aerial by George Orton and Tony Alva in California made it possible for skaters to perform airs on vertical ramps. While this wave of skateboarding was sparked by commercialized vert ramp skating, a majority of people who skateboarded during this period never rode vert ramps. Because most people could not afford to build vert ramps or did not have access to nearby ramps, street skating gained popularity.

Freestyle skating remained healthy throughout this period with pioneers such as Rodney Mullen inventing many of the basic tricks of modern street skating such as the Impossible and the kickflip. The influence freestyle had on street skating became apparent during the mid-eighties, but street skating was still performed on wide vert boards with short noses, slide rails, and large soft wheels. Skateboarding, however, evolved quickly in the late 1980s to accommodate the street skater. Since few skateparks were available to skaters at this time, street skating pushed skaters to seek out shopping centers and public and private property as their "spot" to skate. Public opposition, and the threat of lawsuits, forced businesses and property owners to ban skateboarding on their property.[citation needed] By 1992, only a small fraction of skateboarders remained as a highly technical version of street skating, combined with the decline of vert skating, produced a sport that lacked the mainstream appeal to attract new skaters.

1990s–present

The current generation of skateboards is dominated by street skateboarding. Most boards are about 7+14 to 8 inches (180 to 200 mm) wide and 30 to 32 inches (760 to 810 mm) long. The wheels are made of an extremely hard polyurethane, with hardness (durometer) approximately 99A. The wheel sizes are relatively small so that the boards are lighter, and the wheel's inertia is overcome quicker, thus making tricks more manageable. Board styles have changed dramatically since the 1970s but have remained mostly alike since the mid 1990s. The contemporary shape of the skateboard is derived from the freestyle boards of the 1980s with a largely symmetrical shape and relatively narrow width. This form had become standard by the mid '90s.

Go Skateboarding Day was created in 2004 by a group of skateboarding companies to promote skateboarding and help make it more noticeable to the world. It is celebrated every year on June 21.

Trick skating

  A skater performs a switch kickflip off a stairset.

With the evolution of skateparks and ramp skating, the skateboard began to change. Early skate tricks had consisted mainly of two-dimensional manoeuvres like riding on only two wheels ("wheelie" or "manual"), spinning only on the back wheels (a "pivot"), high jumping over a bar and landing on the board again, also known as a "hippie jump", long jumping from one board to another, (often over small barrels or fearless teenagers), or slalom. Another popular trick was the Bertlemann slide, named after Larry Bertelemann's surfing manoeuvres.

In 1976, skateboarding was transformed by the invention of the ollie by Alan "Ollie" Gelfand. It remained largely a unique Florida trick until the summer of 1978, when Gelfand made his first visit to California. Gelfand and his revolutionary maneuvers caught the attention of the West Coast skaters and the media where it began to spread worldwide. The ollie was adapted to flat ground by Rodney Mullen in 1982. Mullen also invented the "Magic Flip", which was later renamed the kickflip, as well many other tricks including, the 360 Kickflip, which is a 360 pop shove it and a kickflip in the same motion. The flat ground ollie allowed skateboarders to perform tricks in mid-air without any more equipment than the skateboard itself, it has formed the basis of many street skating tricks.

Culture

Skateboarding was popularized by the 1986 skateboarding cult classic Thrashin', also known as Skate Gang directed by David Winters. It has appearances from many famous skaters such as Tony Alva, Tony Hawk, Christian Hosoi and Steve Caballero. The film starred Josh Brolin, who would go on to win acting awards for his roles in the films W., No Country for Old Men, Milk and Wall Street: Money Never Sleeps.[7][8] Thrashin' also had a direct impact on Lords Of Dogtown as Catherine Hardwicke, who directed Lords Of Dogtown was hired by Winters to work on Thrashin' as a production designer where she met, worked with and befriended many famous skaters including the real Tony Alva, Tony Hawk, Christian Hosoi and Steve Caballero.[9]

Skateboarding was, at first, tied to the culture of surfing. As skateboarding spread across the United States to places unfamiliar with surfing or surfing culture, it developed an image of its own. For example, the classic film short Video Days (1991) portrayed skateboarders as reckless rebels.

The image of the skateboarder as a rebellious, non-conforming youth has faded in recent years.[citation needed] Certain cities still oppose the building of skateparks in their neighborhoods, for fear of increased crime and drugs in the area. The rift between the old image of skateboarding and a newer one is quite visible: magazines such as Thrasher portray skateboarding as dirty, rebellious, and still firmly tied to punk, while other publications, Transworld Skateboarding as an example, paint a more diverse and controlled picture of skateboarding. Furthermore, as more professional skaters use hip hop, reggae, or hard rock music accompaniment in their videos, many urban youths, hip-hop fans, reggae fans, and hard rock fans are also drawn to skateboarding, further diluting the sport's punk image.[10][11]

Films such as the 1986 Thrashin', Grind and Lords of Dogtown, have helped improve the reputation of skateboarding youth,[citation needed] depicting individuals of this subculture as having a positive outlook on life, prone to poking harmless fun at each other, and engaging in healthy sportsman's competition. According to the film, lack of respect, egotism and hostility towards fellow skateboarders is generally frowned upon, albeit each of the characters (and as such, proxies of the "stereotypical" skateboarder) have a firm disrespect for authority and for rules in general. Group spirit is supposed to heavily influence the members of this community. In presentations of this sort, showcasing of criminal tendencies is absent, and no attempt is made to tie extreme sports to any kind of illegal activity.[citation needed]

Gleaming the Cube, a 1989 movie starring Christian Slater as a skateboarding teen investigating the death of his adopted Vietnamese brother was somewhat of an iconic landmark to the skateboarding genre of the era.[citation needed] Many well-known skaters had cameos in the film, including Tony Hawk.

Skateboarding video games have also become very popular in skateboarding culture.[citation needed] Some of the most popular are the Tony Hawk series and Skate series for various consoles (Including hand-held) and personal computer.

Safety

Skateboards, along with other small-wheeled transportation such as in-line skates and scooters, suffer a safety problem: riders may easily be thrown from small cracks and outcroppings in pavement, especially where the cracks run across the direction of travel. Hitting such an irregularity is the major cause of falls and injuries.[12] The risk may be reduced at higher travel speeds.

Severe injuries are relatively rare.[13] Commonly, a skateboarder who falls suffers from scrapes, cuts, bruises, and sprains.[13] Among injuries reported to a hospital, about half involve broken bones, usually the long bones in the leg or arm.[12] One-third of skateboarders with reported injuries are very new to the sport, having started skating within one week of the injury.[12] Although less common, involving 3.5% to 9% of reported injuries, traumatic head injuries and death are possible severe outcomes.[12]

Skating as a form of transportation exposes the skateboarder to the dangers of other traffic. Skateboarders on the street may be hit by other vehicles or may fall into vehicular traffic.

Skateboarders also pose a risk to other pedestrians and traffic. If the skateboarder falls, the skateboard may roll or fly into another person. A skateboarder who collides with a person who is walking or biking may injure or, rarely, kill that person.[14]

Many jurisdictions require skateboarders to wear bicycle helmets to reduce the risk of head injuries and death. Other protective gear, such as wrist guards, also reduce injury. Some medical researchers have proposed restricting skateboarding to designated, specially designed areas, to reduce the number and severity of injuries, and to eliminate injuries caused by motor vehicles or to other pedestrians.[12]

The use, ownership and sale of skateboards were forbidden in Norway from 1978 to 1989 because of the high number of injuries caused by boards. The ban led skateboarders to construct ramps in the forest and other secluded areas to avoid the police.[15]

Other uses and styles

  LCPL Chad Codwell of Charlie Company 1st Battalion 5th Marines carries a skateboard during military exercise Urban Warrior '99.

Transportation

The use of skateboards solely as a form of transportation is often associated with the longboard[citation needed]. Depending on local laws, using skateboards as a form of transportation outside residential areas may or may not be legal. Backers cite portability, exercise, and environmental friendliness as some of the benefits of skateboarding as an alternative to automobiles.

Military

The United States Marine Corps tested the usefulness of commercial off-the-shelf skateboards during urban combat military exercises in the late 1990s in a program called Urban Warrior '99. Their special purpose was "for maneuvering inside buildings in order to detect tripwires and sniper fire".[16][17]

Trampboarding

Trampboarding is a variant of skateboarding that uses a board without the trucks and the wheels on a trampoline. Using the bounce of the trampoline gives height to perform a tricks, whereas in skateboarding you need to make the height by performing an ollie. Trampboarding is seen on YouTube in numerous videos.[citation needed]

Swing boarding

Swing boarding is the activity where a skateboard deck is suspended from a pivot point above the rider which allows the rider to swing about that pivot point. The board swings in an arc which is a similar movement to riding a half pipe. The incorporation of a harness and frame allows the rider to perform turns spins all while flying though the air.

Land paddling

  Land Paddling with the Kahuna Big Stick

"Land paddling" is the use of a long pole or stick while longboarding. The stick is used to propel the longboarder farther without pumping. The stick is also used to direct the longboarder in the direction they are trying to turn and can be used as a brake.[18]

Notes

  1. ^ Ocean Howell, Topic Magazine. "Extreme Market Research". http://www.webdelsol.com/Topic/articles/04/howell.html. Retrieved 2006-12-13. 
  2. ^ John Fetto (2002). "Your Questions Answered — statistics about skateboarders". American Demographics. http://www.findarticles.com/p/articles/mi_m4021/is_2002_Oct_1/ai_92087410. Retrieved 2006-12-13. 
  3. ^ Steve Cave, about.com. "Skateboarding: A Brief History (page 2)". http://skateboard.about.com/cs/boardscience/a/brief_history_2.htm. Retrieved 2006-12-13. 
  4. ^ a b c "Skateboarding: A Brief History (page 1)". http://skateboard.about.com/cs/boardscience/a/brief_history.htm. Retrieved 2007-09-01. 
  5. ^ a b "Skateboarding History". http://www.skatelog.com/skateboarding/skateboarding-history.htm. Retrieved 2007-09-02. 
  6. ^ Snyder, Craig Gasbag, Transworld Skateboarding Magazine (October 2005, p. 44)
  7. ^ Thrashin' in the TCM database
  8. ^ ASIN B00009OWJZ David Winters (1986) [DVD 2003] (Commentary Track). Thrashin' (Liner notes). MGM Home Video. MGM Home Video. 
  9. ^ Thrashin' at the Internet Movie Database
  10. ^ "Team Ice Cream Skate Video". http://video.google.com/videoplay?docid=3181390863653504968&q=Team+Ice+cream+skate+video. Retrieved 2007-01-07. 
  11. ^ "Roots, Rock, Reggae, Skateboarding". http://skateboarding.transworld.net/2003/7/23/roots-rock-reggae-skateboarding/. Retrieved 2003-07-23. 
  12. ^ a b c d e Fountain, JL.; Meyers, MC. (Dec 1996). "Skateboarding injuries.". Sports Med 22 (6): 360–6. PMID 8969014. 
  13. ^ a b Keilani, M.; Krall, C.; Lipowec, L.; Posch, M.; Komanadj, TS.; Crevenna, R. (Jul 2010). "Skateboarding injuries in Vienna: location, frequency, and severity.". PM R 2 (7): 619–24. DOI:10.1016/j.pmrj.2010.04.022. PMID 20659717. 
  14. ^ White, Kimberly (11 July 2011). "Woman killed after collision with skateboarder had been hit by one 15 years prior". San Jose Mercury News. http://www.mercurynews.com/breaking-news/ci_18443561. 
  15. ^ "Criminals on wheels". http://oslopuls.no/film/article1536291.ece. Retrieved 2006-12-13. 
  16. ^ "Defense Visual Information Center database / US Department of Defense". http://www.dodmedia.osd.mil/DVIC_View/Still_Details.cfm?SDAN=DMSD0002959&JPGPath=/Assets/2000/Marines/DM-SD-00-02959.JPG. Retrieved 2006-12-30. 
  17. ^ "The Role of Experimentation in Building Future Naval Forces (2004), Naval Studies Board". http://newton.nap.edu/books/0309088739/html/82.html. Retrieved 2006-12-30. 
  18. ^ Goodman, Liam. "Land Paddling is Coming to a Bicycle Lane Near You". Vogue. Vogue. http://www.vogue.com/vogue-daily/article/vd-land-paddling-is-coming-to-a-bicycle-lane-near-you/. Retrieved 30 June 2009. 

References

  • Borden, Iain. (2001). Skateboarding, Space and the City: Architecture and the Body. Oxford: Berg.
  • Hocking, Justin, Jeffrey Knutson and Jared Maher (Eds.). (2004). Life and Limb: Skateboarders Write from the Deep End. New York: Soft Skull Press.
  • Weyland, Jocko. (2002). The Answer is Never: a History and Memoir of Skateboarding. New York: Grove Press.
  • Hawk, Tony and Mortimer, Sean. (2000). Hawk: Occupation: Skateboarder. New York: HarperCollins.
  • Thrasher Magazine. (2001). Thrasher: Insane Terrain. New York: Universe.
  • Brooke, Michael (1999) The Concrete Wave — the History of Skateboarding. Warwick Publishing
  • Mullen, Rodney and Mortimer, Sean (2003). The Mutt

External links

   
               

Skateboard

From Wikipedia, the free encyclopedia

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A girl holding a skateboard.

A skateboard is typically a specially designed plywood board combined with a quad wheeled, dual "truck" and eight bearing system designed for both movement and stunts, used primarily for the activity of skateboarding. The modern skateboard originated in California in the late 1970s. By the mid 1980s they were mass produced and sold throughout the United States.

A skateboard is propelled by pushing with one foot while the other remains on the board, or by pumping one's legs in structures such as a pool or half pipe. A skateboard can also be used by simply standing on the deck while on a downward slope and allowing gravity to propel the board and rider.

There is no governing body that declares any regulations on what constitutes a skateboard or the parts from which it is assembled. Historically, the design of the board has conformed both to contemporary trends and to the ever evolving array of stunts performed by riders/users, who require a certain functionality from the board. Of course, the board shape depends largely upon its desired function. Longboards are a type of skateboard with a longer wheelbase and larger, softer wheels.

Contents

History

There is no definitive origin or inventor of the skateboard. One proposed origin is that skateboards arose in the 1930s and 1940s, when children would participate in soapbox races, using soap-boxes attached to wooden planks on rollerskate wheels. When the soap-box became detached from the plank, children would ride these primitive "skateboards". However, there are arguments that this origin is not accurate, and that it has simply been taken from the film Back to the Future. Another suggests that the skateboard was created directly from the adaptation of a single roller skate taken apart and nailed to a 2x4, without the soapbox at all. Surfers would skate when the waves were flat and began skating to recreate surfing on land, some surfers began to do tricks on the land such as Bert slides and Power slides. In 1972, the first Urethane wheels came into production which made these tricks possible. Some of the most well known early skaters, the "Z-boys" named after the Zepher surf shop, used a more fluid motion than most skaters at the time and styled themselves after a famous surfer. The skaters brought back the trend from its slump in 1975 during the Del Mar competition where they wowed audiences with their close to ground maneuvers and fluid movements. The main types of skating during this time were slalom, long jump, free style, and downhill racing. Later during the drought of California the Z-boys and other skaters started to skate empty pools thus creating vert skating. One of the group's members, Laurie Picken, would perform the world's first Aerial in a swimming pool.[1]

Retail skateboards were first marketed in 1958 by Bill and Mark Richard of Dana Point, California. They attached roller skate wheels from the Chicago Roller Skate Company to a plank of wood and sold them in their Val Surf Shops.[2] As skateboarding became more popular, Larry Stevenson created the "kick tail" on a skateboard which led to the design of the trick board. The sport of skating was considered to be an outcast sport because of its strong ties to the punk and rebel movement during the 90s. It wasn't until the 2000s X Games that skateboarding made a new name for itself as an official sport.

Parts

Descriptions of the following skateboard parts are the ones most prevalent in popular, modern forms of skateboarding. Many niche disciplines exist with exotic or alternative constructions and designs that fall outside of much of the descriptions listed. The usual parts to design a complete skateboard are the deck, trucks, wheels, bearings, hardware, and griptape.

Deck

File:Skateboard.JPG
The underside of a skateboard. In this photo the deck, trucks and wheels can be seen.

Most decks are constructed with a seven to nine-ply cross-laminated layup of Canadian maple. Other materials used in deck construction, such as fiberglass, bamboo, resin, Kevlar, carbon fiber, aluminum, and plastic, lighten the board or increase its strength or rigidity. Some decks made from maple ply are dyed to create various different coloured ply. Modern decks vary in size, but most are 7 to 10.5 inches wide. Wider decks can be used for greater stability when transition or ramp skating. Skateboard decks are usually between 28 and 33 inches long. The underside of the deck can be printed with a design by the manufacturer, blank, or decorated by any other means. The longboard, a common variant of the skateboard, has a longer deck. This is mostly ridden down hills or by the beach. This was created by two surfers; Ben Whatson and Jonny Drapper. One of the first deck companies was called "Drapped" taken from Jonny's second name. "Old school" boards (those made in the 1970s–80s or modern boards that mimic their shape) are generally wider and often have only one kicktail. Variants of the 1970s often have little or no concavity, whereas 1980s models have deeper concavities and steeper kicktails.

Grip tape, when applied to the top surface of a skateboard, gives a skater's feet more grip on the deck. It is most often black but can come in a variety of colors including clear, allowing the top of the deck to be decorated. It has an adhesive back and a sandpaper like top.

Trucks

An Independent brand skateboard truck

Attached to the deck are two metal (usually aluminum alloy) trucks, which connect to the wheels and deck. The trucks are further composed of two parts. The top part of the truck is screwed to the deck and is called the baseplate, and beneath it is the hanger. The axle runs through the hanger. Between the baseplate and the hanger are bushings, also rubbers or grommets, that provide the cushion mechanism for turning the skateboard. The bushings cushion the truck when it turns. The stiffer the bushings, the more resistant the skateboard is to turning. The softer the bushings, the easier it is to turn. A bolt called a kingpin holds these parts together and fits inside the bushings. Thus by tightening or loosening the kingpin nut, the trucks can be adjusted loosely for better turning and tighter for more stability.

Longboard specific trucks are a more recent development. A longboard truck has the king pin laid at a more acute angle (usually between 38 and 50 degrees[3]) to the deck, this gives a lesser degree of turning for the same tilt of the deck. This allows riders to go much faster while still maintaining stability and control.

Wheels

The wheels of a skateboard, usually made of polyurethane, come in many different sizes and shapes to suit different types of skating. Larger sizes like 54–85 mm roll faster, and also move more easily over cracks in pavement. Smaller sizes like 48–54 mm keep the board closer to the ground, require less force to accelerate and produce a lower center of gravity, but also make for a slower top speed. Wheels also are available in a variety of hardnesses usually measured on the Shore durometer "A" scale. Wheels range from the very soft (about Shore A 75) to the very hard (about Shore A 101). As the A scale stops at 100, any wheels labeled 101A or higher are harder, but do not use the appropriate durometer scale. Some wheel manufacturers now use the "B" or "D" scales, which have a larger and more accurate range of hardness.

Modern street skaters prefer smaller wheels (usually 51–54 mm), as small wheels with lighter trucks can make tricks like kickflips and other flip tricks easier by keeping the center of gravity of the skateboard closer to the deck, thus making the deck easier to spin. Street wheels are often quite hard as this allows the wheels to slide easier on waxed surfaces for bluntslides and nose/tailslides. Vertical ramp or "vert" skating requires larger wheels (usually 55–65 mm), as it involves higher speeds. Vert wheels are also usually softer, allowing them to maintain high speed on ramps without sliding. Slalom skating requires even larger wheels (60–75 mm) to sustain the highest speeds possible. They also need to be soft and have better grip to make the tight and frequent turns in slalom racing. Even larger wheels are used in longboarding and downhill skateboarding. Sizes range from 65 mm to 100 mm. These extreme sizes of wheels almost always have cores of hard plastic that can be made thinner and lighter than a solid polyurethane wheel. They are often used by skateboard videographers as well, as the large soft wheels allow for smooth and easy movement over any terrain.

File:BallBearing.gif
An Animation of the working principle for a ball bearing. N.B. The diagram shows an 8-balled-bearing whereas a skateboard bearing only has 7

Bearings

Each skateboard wheel is mounted on its axle via two bearings. With few exceptions, the bearings are the industrial standard "608" size, with a bore of 8 mm, an outer diameter of 22 mm, and a width of 7 mm. These are usually made of steel, though silicon nitride, a high-tech ceramic, is sometimes used. Many skateboard bearings are graded according to the ABEC scale. The scale starts with ABEC1 as the lowest, 3, 5, 7, 9. It is a common misconception that the higher ABECs are better for skateboarding, as the ABEC rating only measures tolerances, which do not necessarily apply to skateboards. The ABEC rating does not determine how fast or how durable a bearing used for skateboarding will be.[4] In particular, the ABEC rating says nothing about how well a bearing handles axial (side-to-side) loads, which are severe in most skateboard applications. Many companies do not show the ABEC rating, such as Bones Bearings, which makes bearings specifically for skateboarding, often marketed as "Skate Rated". These bearings are usually called Swiss (made in Switzerland), ceramic or both and are better for skateboarding.Each bearing usually contains 7 steel or ceramic ball bearings. Some skateboard bearings do however contain 6 ball bearings.

Hardware

Mounting hardware is a set of eight 10-32 UNC bolts, usually an Allen or Phillips head, and matching nylon locknuts. They are used to attach the trucks to the board. Some have a different colored bolt to show which side is the nose of the skateboard.

Optional components

Risers/wedges

Risers increase the space between the truck and the deck. This allows the truck to turn further without causing wheel bite (when the wheel touches the deck and stops rotating).Wedges can be used to change the turning characteristics of a truck.[5]

Rails/ribs

Narrow strips of plastic or metal that are attached under the deck lengthwise along the edges. They are used for additional grip for grabs, and to enhance sliding while protecting the deck's graphics at the same time. Although rarely used anymore, they are useful for experienced skaters that are capable of grabs.

Grip tape

Grip tape is a sheet paper or fabric with adhesive on one side and a surface similar to fine sand paper on the other. Grip tape is applied to the top surface of a board to allow the rider's feet to grip the surface and help the skater stay on the board while doing tricks. Grip tape is usually black, however it is also available in other colors or transparent.

Slip tape

Slip tape is a clear piece of self adhesive plastic that sticks to the underside of a deck. It helps protect the board's graphics and allows the board to slide easier. Another name for this is everslick.

Lapper

A lapper is a plastic cover that is fastened to the rear truck and serves to protect the kingpin when grinding. It also prevents hang-ups by providing a smoother transition for the truck when it hits an obstacle or a metal pipe or round bar.

Nose guard

A plastic bumper used to protect the front of a skateboard. Used in old school boards.

Tail guard

Is a plastic cover that protects the tail end of the skateboard

Copers

Plastic half tubing that protected the axles of the trucks. In the 1980-85 period, stolen shopping cart handles were cut by some to fit as a makeshift coper.

References


 

All translations of Skateboarding


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