Social Networking

A social networking service is an online service, platform, or site that focuses on building and reflecting of social networks or social relations among people, e.g., who share interests and/or activities. A social network service essentially consists of a representation of each user (often a profile), his/her social links, and a variety of additional services. Most social network services are web based and provide means for users to interact over the internet, such as e-mail and instant messaging. Online community services are sometimes considered as a social network service, though in a broader sense, social network service usually means an individual-centered service whereas online community services are group-centered. Social networking sites allow users to share ideas, activities, events, and interests within their individual networks.

The main types of social networking services are those which contain category places (such as former school year or classmates), means to connect with friends (usually with self-description pages) and a recommendation system linked to trust. Popular methods now combine many of these, with Facebook and Twitter widely used worldwide, Nexopia (mostly in Canada);^[1] Bebo,^[2] VKontakte, Hi5,Hyves (mostly in The Netherlands), Draugiem.lv (mostly in Latvia), StudiVZ (mostly in Germany), iWiW (mostly in Hungary), Tuenti (mostly in Spain), Nasza-Klasa (mostly in Poland), Decayenne,Tagged, XING,^[3] Badoo^[4] and Skyrock in parts of Europe;^[5] Orkut and Hi5 in South America and Central America;^[6] and Friendster, Mixi, Multiply, Orkut, Wretch, renren and Cyworld in Asia and the Pacific Islands and Twitter, Facebook, LinkedIn and Orkut are very popular in India.

There have been attempts to standardize these services to avoid the need to duplicate entries of friends and interests (see the FOAF standard and the Open Source Initiative). A 2011 survey found that 47% of American adults used a social network. ^[7]

Street Bikes

A streetfighter is a sport bike that is customized by removing the fairing, and making other changes that result in an overall more aggressive look.^[1][2] Beyond simply removing fairings, specific changes that exemplify the streetfighter look are a pair of large, round headlights, tall, upright handlebars such as those on a motocross bike, and short, loud, lightweight mufflers. Streetfighters is also the name of a UK motorcycle magazine.^[3]

Later streetfighters used custom-built frames intended to overcome the weakness of the tubular steel frames of the early 4-cylinder superbikes of the 1970s and 80's. Many of these frames turned out to be "beautifully crafted pieces of metallurgical art," perhaps only unintentionally.^[4] Many were also originally racing machines.^[5]

Made popular by European riders,^[6] this type of custom motorcycle gainied popularity all over the world, and motorcycle manufacturers began responding in the late 1990s by adopting the terminology^[7] and producing factory built streetfighters, beginning with the 1994Triumph Speed Triple^[8] and the 1999 Honda X11,^[9] up through the 2009 Ducati Streetfighter.

History Of Street Bikes

Though it has its styling roots in the café racer culture of the 1950s and 1960s, the streetfighter is very much inspired by the new Japanese bikes of the late 1970s and early 1980s,^[10] possibly from young riders in the UK who couldn't afford to replace damaged fairings after repeated crashes. Later, more appropriate headlights were added, then high handlebars to aid in wheelies and other stunts.^[11][12]

The first sighting of the streetfighter design template was seen in Bike magazine in 1983 when the editor commissioned Andy Sparrow to draw a comic strip to replace Ogri. It was titled 'Bloodrunners' and featured dispatch riders, delivering blood and live human organs for transplant operations in which bikers rode enormous Japanese inline fours with turbos, with no extraneous parts. Fairings, mirrors, pillion seats & rear footpegs etc. were all binned in favour of lightness and handling ability. Under-seat exhausts, dual headlights and the widest sport tyres were de-rigueur.^{[non-primary source needed]}

Actor Huggy Leaver is credited with being inspired to build such customized motorcycles in this style and there was a proliferation of 'ratted' streetfighters in London around the late 1980s. The term streetfighter was first applied to a custom street bike by a British photojournalist and bike builder to a Harley-Davidson customized sports-bike, and later extended to the Japanese four-cylinder customs being created at the time.^[13]

Common Equiments used in Stunt bikes

• Frame sliders — these large knobs are attached to a motorcycle's frame to protect the fairingfrom damage should the rider lay down the bike. Also used by many non-stunters. Frame sliders should not be considered a substitute for a cage when learning how to stunt. Although Frame sliders will reduce the damage to the plastics and certain parts of the bike they are not enough to keep from cracking motor cases and or cracking the frame itself.
• Crash cages — these cages provide more protection from damage than frame sliders. Mostly used by stunters. There are many examples of cages on the market today and a vast array of different designs and styles. It is very important to check around based on the type of bike you have as to what cage will work best at maximizing the protection for your specific motorcycle. A cage should be one of the first things purchased when learning how to stunt due to the fact that most drops and falls will occur during this time.
• subcages — subcages are very similar to crash cages but for protection of a different sort. While crash cages are protection for the frame itself, motor mounts and cases subcages focus on protecting the subframe of the motorcycle. In certain subcage applications will also eliminate the stock passenger pegs and relocate them to a different spot which is more becoming for staggered stance wheelies among other tricks. These pegs will in some cases be solid mounted to eliminate the possibility of them folding up on the rider when doing wheelies on the passenger pegs.
• front Upper Stay — Meant to replace the upper stay on the motorcycle which usually holds the upper fairing and gauges in place. This is only necessary when running a full fairing bike and is meant in like fashion as both the subcage and crash cage to protect the front of the bike and provide increased stability for the front end of the motorcycle. This will not save the front fairing from damage.
• 12 o'clock bar — 12 bars as they are referred to are commonly used on stunt bikes. These bars attach to the subframe of the motorcycle and are used when 12ing the bike. These bars are meant to scrape the ground in place of the exhaust or tail section. Furthermore, with the introduction of the 12 bar came an array of bar tricks which all occur while the motorcycle is resting on the bar itself. These tricks include but are not limited to the ape hanger, watch tower, and various other acrobatics while the bike is on the bar. Only used by stunters.
• Hand Brake — A handbrake came onto the stunting scene much later and in actuality within recent years gained popularity. With the sport pushing its bounds into new territory came tricks that involved the rider in a position in which he cannot access the rear brake to control the balance point of the motorcycle. When tricks such as seat standers, highchairs, and spreaders came on the scene at first it was not necessary to use a handbrake, however these tricks quickly developed into scraping while in a highchair or spreader which involved the use of a hand mounted rear brake
• Round bar— A variation of the 12 bar, round bars are becoming more and more popular nowadays with riders straying away from bar tricks and increasing the technicality of Circle combinations. A round bar is the same principle of a 12 bar as far as scraping the bar instead of the tail section or exhaust with one difference. The round bar is just that, its a curved bar that hugs the contour of the motorcycle tail section with no flat sections.

Bike Stunting.

A wheelie on a motorized vehicle is nothing new. In drag racing they are considered a problem, robbing power that could be used to accelerate the vehicle faster, and many classes of drag racing use wheelie bars to prevent them.

But those are for vehicles specifically built for drag racing, which rarely are street-legal, or unmodified from stock. In contrast, since at least the 1970s, some motorcycles straight from the showroom floor were able to be wheelied.

In the late 1980s and continuing today, motorcycles, and especially sportbikes, have become lighter and more powerful, and have therefore become easier to wheelie. Other stunts have also become possible if not easy with the advancement of motorcycle technology. As Martin Child wrote in Bike, "With lighter, shorter, better-braked bikes on the market, the stoppie has never been so easy for so many."^[1] But at the same time, the cost of a motorcycle has remained relatively low compared to other street-legal vehicles with similar power-to-weight ratios.

In the 1990s some riders made performing stunts the primary focus of their riding. A wheelie or other stunt was not just something to do while riding, it became the main goal in riding

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