Archive for the 'Bicycles, Trikes, etc.' Category

Biclycle – a Life Saver?

Wednesday, December 16th, 2009

Being one of the most basic human power-driven vehicles, the bicycle has two wheels connected to a vehicle that
is driven by a pedal. Bicycles were first presented in the 19th century and it is asked that presently there are approximately about
one billion bicycles worldwide, outnumbering cars 2 to 1. Bicycles being the main method of carry in many corners of the globe, the bicycle is also majorly used for other recreational actions and for the purpose of fitness and even in the case of law enforcement actions such as petrolling an area.

The Story of Bicycles

Ever since the chain driven model was presented to the market, the primary
innovation of the bicycle had remained unchanged up to day. But, other advances such as using computers to pattern
and check the stability have been made to the bicycle from its manufacturing process. These methods have greatly aided the spawn of
specified bicycles for particular purposes such as racing, utility and law enforcement uses. Additionally, the concept of the bicycle has up to a great extent extended its contribution for the development of autos by introducing concepts such as ball bearings, pneumatic tires and spoke tensioned wheels.

Things to Look in a Bicycle

When referring to bicycles, the dynamics of the bicycle should be seen first. A bicycle has to maintain its center of gravity over the wheels in order to stay upright or balanced.
Therefore, it reaches this by the moving forward using the steering which is normally provided by the rider
and sometimes even by the bicycle itself. In addition in order to successfully navigate a turn, the combined or total center of mass
of both the bicycle and the rider must lean into the turn. Counter-steering is a task that is used in this regard.

Bicycle can be classified as an extremely
competent machine looked at in both biological and mechanical view point. Energy needed from the rider for the bicycle to perform its
wonders are high on the list but given the distance that a bicycle can take you through without fuel, it becomes a
valuable journey at the end. The bicycle wheels carry nearly 99% of the energy because the rider exerts energy to pedals. But in
bicycles that have gear mechanisms, the energy needed will be diminished However the air drag faced by the rider will
always remain a problem. When the speed is high, a lot of energy will be needed
to overcome this airdrag resulting in an exhaustive ride for the rider. The only way to reduce the air drag is to significantly reduce the position to supine or prone that is in line with aerodynamics.

The main parts of the bicycle include the frame, steering mechanics, seating, drivetrain, suspension, wheels and brakes. Certain bicycles may include optional
mechanics such as gearing which uses distinct sizes of gears to obtain a mechanical advantage from the bicycle. Using gears a rider can produce a higher power output with a relatively low
power input and thus, maximizing the efficiency of the bicycle.

Avoiding Slick Spots while Biking

Wednesday, May 6th, 2009

By Fred Matheny and Ed Pavelka of www.RoadBikeRider.com

Slick Spots

  • Painted lines. These can be slippery, especially the wide markings for pedestrian crossings at intersections. The paint fills in the asphalt’s texture, producing a surface that’s uncertain when dry and deadly when wet. The danger is worse when the paint is new.

  • Dry oil slicks. These may be nearly invisible, but you can spot them as darker streaks on a gray pavement. Be real careful in corners. You aren’t safe if you ride through oil on the straights. The greased tread might slip in a corner just ahead.

  • Wet oil slicks. If it rains, a small oily patch can grow until it covers the whole lane. Be on the lookout for the telltale multi-colored water. There’s no pot of gold at the end of this rainbow, only a black-and-blue meeting with the pavement.

  • Wet metal. If it’s been raining and you come upon anything metal in the road (manhole cover, steel-deck bridge, road-repair plate), it’s as treacherous as riding on ice. Cross it with the bike absolutely upright. Even a slight lean can cause the wheels to slip. Smart riders walk their bikes across wet steel bridges.

  • Wet leaves. Be very careful in the fall, or you will. Even if the road is dry, there can be moisture trapped between leaves littering the pavement. When you see leaves in a corner, slow down and round the bend with your bike upright, not angled.

  • Sewer grates. Some old ones have bars that run parallel to the street and are wide enough to let a bike wheel fall through. If this happens, you can look forward to plastic surgery and possibly a lifetime of lawsuit riches. Many municipalities have replaced such grates with bicycle-friendly versions, but be careful in case a town hasn’t gotten the message yet.

Receive a FREE copy of the eBook “29 Pro Cycling Secrets for Roadies” by subscribing to the RoadBikeRider Newsletter at www.RoadBikeRider.com. No cost or obligation!

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Stay in Shape – Cycling Workouts For the Winter Months

Wednesday, July 9th, 2008

It’s that time of year. The time when you decide it’s fine to ride in 12 degree weather. The time when your food and water freezes, your hands and feet go numb, and your bike gets covered in water and road salt…

It’s the time of year when you decide that you were a freakin idiot for going outside!

That “time of year” for me was yesterday. My first ride outside in sub 25 degree weather. It’s the same every year. Through spring, summer, and fall you tend to forget just how bad it is… and you think you’re tough enough to handle it. Well… you’re not!

Just one ride brings back the painful experiences of just one year ago. The warming of frostbitten hands and feet – what a way to end a ride! It’s enough to make me want to stay out in the cold!

I even bought a trainer this year. And I wore it out after a month. So, inevitably, I rode outside in frigid temperatures. Now I’m getting ready to buy some rollers. Then I’ll stay inside like a sane person!

Perhaps I’ll even pick up some workout videos. I have a CTS mountain biking video, the Spinervals might be ok, but I’m more interested in the Cyclo-core workouts. [See resource box below.] There’s a little bit of everything – riding, light lifting, etc. – and best of all: just 30-60 minutes each!

You get to stay inside, avoid trainer boredom, and you don’t even have to go to the gym! Definitely too good to pass up!

Even if you don’t want to buy anything, check out the site for a free special report: “Five Secrets to Double Your Off-Season Fitness”

Moral of the story: This is the off-season. Don’t ride outside if it’s below 25 degrees. And feel free to use this as an excuse to spend the winter in California!

EzineArticles Expert Author Levi Bloom

Levi Bloom is the owner of Bloom Bike Shop and the webmaster of http://bloombikeshop.com

Check out his site for more useful articles on cycling and bike repair. And if you’re interested in CycloCore workouts, check out http://bloombikeshop.com/cyclocore