Different Types Of Bicycles

There are many different types of bicycles, each with different functions, designs and material makeup. One way to categorize bicycles, including the less conventional bikes, is to do it with the focus on the rider, which means the sitting position is different for each type of bicycle; it follows naturally that the design would be very different as well.

For example, an upright bicycle (now more popularly known as a safety bicycle) is the most common type of bicycle for the casual rider that requires the rider to sit astride the saddle; they were called safety bicycles because they had replaced the penny-farthings, the vintage type of bicycles with a very high wheel, the top of which the rider had to sit on. It is one of the bicycle types that use a so-called diamond frame consisting of the head tube, the top tube, the down tube and the seat tube, connected to each other to form the conventional bicycle design.

Bikes with reforms in certain parts that differentiate from this popular form of bicycle include the crank forward bicycle, on which the rider has no need to dismount in order to put his or her feet on the ground. A small wheel bicycle is also similar to the upright bicycle except that it has smaller wheels. A step-through bicycle is basically the same as an upright bicycle except it has a frame over which the rider does can put his or her leg across with much more ease because the top tube, the bar crossing in the front, is either absent or positioned very low. It is designed for riders who have to get off their bicycles very frequently, like those that deliver mail or run errands, and the more aged riders.

The term upright bicycle came from the need to distinguish it from the recumbent bicycle, an altogether different type of bicycle on which the rider lies or lies or leans in a supine or a semi-supine position; the rider looks quite comfortable riding this type of bicycle, leaning on his or her back. The weight of the rider is distributed evenly over the whole frame of the bicycle, rather than just a small saddle like it is on a conventional bicycle. This makes it aerodynamically superior, which is the reason why the world record for a bicycle’s speed is held by the recumbent bike. Racing is banned using this type of bike., but you can get them for leisure, and even tricycles of this type as well. This type of bicycle doesn’t follow the diamond frame and instead has the handlebars located in the center, and the pedals and chainset located at the front. A prone bicycle is similar in that it makes the rider lean, but in a prone position as opposed to a recumbent position; the rider leans well forward.

Whatever type of bicycle you are looking for, to start cycling or to add to your collection of bikes, you would do well to shop for the best gear, including the most suitable tires at http://www.besttriathlongear.com/continental-bike-tires/ – continental bike tires.

Twin Tip Skis 101

Skiing continues to be one of the most popular wintertime activities. For many decades the traditional single-tipped ski provided limited capabilities to those looking for something more in the way of performance. However, the invention of twin-tipped skis changed all that. https://revisionskis.com/ – twin tip skis have pointed tips at both ends and are designed to provide equal control whether the rider is going forwards or backwards. Traditional skis have a pointed tip at the front end and are square (flared) at the back end.

History of Twin Tip Skis

Twin-tip skis are a ski design which began to gain popularity in the late 1990s. Conventional alpine skis have a curved front end and a flat rear end. These skis have curved fronts and rears, which enable the skier to do more tricks, turn more effectively, have stable landings, and ski backward as well. The versatile skis led to a resurgence in popularity for skiing amongst younger sportspeople, and led to changes in ski resort design as well.

Twin-tip skis were developed by Clint Fiala, who constructed these skis in his garage before realizing the commercial potential of the skis. The design was picked up by Salomon, a venerable ski company, as the Teneighty. Today there are a wide range of twin-tips on the market, although Teneighties are linked with high quality.

Features of Twin Tip Skis

In addition to being upturned at the front and the back, twin-tip skis also have a distinctive hourglass design, narrowing slightly in the middle. These skis can come in designs which are very wide for increased stability on a variety of terrain, or they can be narrow for speed. Either way, they are highly adaptive, allowing skiers to turn on a dime, spin in half pipes, and do a variety of other skiing stunts.

Twin-tip skis are often linked with snowboards, because both enable athletes to do an astounding array of tricks. Many snowboarders have taken up twin-tip skis as well because it is actually possible to do more tricks on skis, due to the greater amount of speed which can be achieved. As a result, skiers and snowboarders are often seen sharing space in half pipes and other areas at ski resorts set aside for tricks.

Popularity of Twin Tip Skis

Due to the increased demand caused by twin-tip skis, ski resorts have begun changing the way they groom their facilities. More space is set aside for stunt areas, half pipes are much larger, and youthful skiers are welcome at many resorts. Several stunt skiers who use twin-tip skis are sponsored by resorts, and make excellent advertising for their facilities.

Some traditional skiers are uncomfortable with the rise of twin-tip skis. Skiing with these skis is markedly different than progressing in a stately and elegant fashion down the slopes. It is a rugged, active version of skiing which can potentially be far more dangerous, as well as providing a rewarding adrenalin rush. At resorts where adequate provisions have not been made for twin-tip skiers, this has led to conflict on the slopes.

Are protective sports gears adequate?

Football possibly ranks as one of the most dangerous sports. It is rivaled by boxing and ice hockey. What all these sports have in common is that the participants are allowed to hit, butt, punch, fight and tackle their opponents during the course of the game. Indeed, the participants engage in these activities throughout the game, sometimes unnecessarily. The consequences of these repeated physical and bodily contact mean the high risks of injury. While contact sports have been around for centuries (recall the days of the gladiators), the risks of injury have not changed much despite a variety of precautions introduced by organizers of the sports. These include the wearing of protective head gears such as helmets and knee pads.


If you have been attending football games including a few games that are on the Chicago bears schedule, you will see players wearing helmets and face masks as well as large shoulder pads to protect their upper body which includes the head. During the games, the players could be seen running into one another to tackle their opponents to gain possession of the ball, to stop their opponents from retrieving a pass or to break their run towards the touch down line with the ball. These collisions involve not only tackling the opponents by their legs but also frequent head collisions amongst the players. Although intentional head collisions which were a staple of the games in the past, they have been banned by the National Football League. However, these collisions, sometimes referred to as helmet-to-helmet collisions are still allowed if the collision are not intentionally such as when the players are running towards the ball and their helmets collide in the process.   Frequent and repeated head collision even with the protection of the helmet have resulted in severe injuries to to the players. This is due to the speed and force at which the players collide into each other.


The sudden impact despite the helmets and perhaps even because of the helmets is said to have caused brain injury in some players who repeated encounter such collisions in their pro football careers. The obvious purpose of wearing a helmet is for protection of the head. However, the force and impact of a collision between players wearing helmets cause the heads to knock against the helmets itself. Therefore, when two helmets collide with sufficient force and speed, the players’ heads are actually flung against their own helmets. This may cause sudden impact concussion. The symptoms of a sudden impact concussion are dizziness, nausea, disorientation and headaches. After some rest, these symptoms disappear and the player recovers.


However, if the player is constantly and repeatedly engage in helmet-to-helmet collisions, they are at high risk of chronic traumatic encephalopathy (CTE). Post postmortem studies on the brains of deceased former football players have shown that they had suffered from CTE. The symptoms of CTE are almost of the same as those of sudden impact concussions except that they persist through repeated collisions during the career of the player. Thus, there is a progressive degeneration of the brain and even the nervous system. So the question remains whether protective gears do provide adequate safety.