All About Bike & Bike Wheeling (Photos & Info)

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Bike riding is a great way to get exercise and fresh air and share time as a family. But before you and the kids rush out and start pedaling, there's an important factor that you need to consider — safety.
Helmet Basics

Bicycle helmet use should not be optional for anyone in your family, no matter where you are or how short the ride. In many states it's the law.
Here's why: Most bike accidents involve a head injury, so a crash could mean permanent brain damage or death for someone who doesn't wear one while riding. In fact, each year in the United States, about half a million kids are seriously injured in bicycle-related accidents, and most of those injuries could have been avoided if a helmet was worn.
Here are some things to keep in mind when buying a helmet:

• Pick bright colors that are visible to drivers and other cyclists.
• Look for a helmet that's well ventilated.
• Make sure your child's helmet fits correctly and can be adjusted.

You should be able to get help finding a well-fitting helmet and adjusting it properly at any bicycle store.
When kids wear a helmet, make sure that the straps are fastened. Also make sure they don't wear any other hat underneath it.
Be sure to replace any helmet made before 1999. If your child hits any surface hard while wearing a helmet, replace it — helmets lose their capacity to absorb shock after taking serious hits.
A few bike helmets can be used as protection for other activities, but in general, they're best suited to biking. Most helmets are made for one specific type of activity — for example, special helmets also are made for inline skating, baseball, and snowmobiling.
Kids should not wear any helmet when they're on a playground or climbing a tree — there is a risk of strangulation from the chin strap during these types of activities.

 

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The following are the tips for packing the medical surplus by a motorbiker:

1. Step 1
   Maintain a pre-packaged kit. Purchase a basic first-aid kit from a local store and keep it in your backpack. This will feature the basics that you'll need on your trip, such as bandages, antibiotic ointment and gauze.
2. Step 2
   Carry a first-aid manual at all times. This should include basic first-aid information and methods of taking care of various injuries. Often, an injury will occur that were not informed about the best way to treat. This manual should include helpful and necessary information.
3. Step 3
   Include lotion. In case of blisters, you're going to need salve or lotion to treat them. Having blisters along the trail and nothing to treat them with will seriously hinder your trip.
4. Step 4
   Pack an eyewash cup. This should be small enough to use to clean your eye of any dirt or irritants.
5. Step 5
   Include an Ace bandage in your supplies. This is valuable for sore muscles or sprains when you're backpacking.
6. Step 6
   Carry ointments or sprays to alleviate the pain or itching of burns, insect stings and poison plant exposures.
7. Step 7
   Carry items to help treat a victim who is in shock, including water and a blanket. Also carry iodine tablets to purify water in case you run out or are running low.

 

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Torque:



Torque is the tendency of a force to rotate an object about an axis, fulcrum or pivot. Just as a force is a push or a pull, a torque can be thought of as a twist. In other words torque is a measure of the turning force on an object such as bolt or a flywheel. For example, pushing or pulling the handle of a wrench connected to a nut or bolt produces a torque (turning force) that loosens or tightens the nut or bolt.
The magnitude of torque depends on three quantities: First, the force applied; second, the length of the lever arm connecting the axis to the point of force application; and third, the angle between the two.



Revolution per Minute (rpm):



Revolutions per minute is a unit of frequency of rotation: the number of full rotations completed in one minute around a fixed axis. It is used as a measure of rotational speed of a mechanical component. The engine of a Formula One racing car can reach 18,000 rpm (300 Hz) under some circumstances.



Bhp:



Horsepower is the amount of "power" the engine produces without any frictional losses. Brake horsepower (bhp) is the measure of an engine's horsepower without the loss in power caused by the gearbox, alternator, differential, water pump, and other auxiliary components such as power steering pump, muffled exhaust system, etc.



CC: ( cubic centimeter):

When you are doing research to buy a motorcycle, you will see the term "cc" plastered on the tank or frame of every bike out there, along with a number: 250 cc, 500 cc, 750 cc. Cubic centimeters measure the volume of a three-dimensional substance, such as a liquid or a gas. Or in this case, both: You are dealing with the volume of fuel mixed with air that powers motorcycles. Make a cube that's one centimeter long (0.39 of an inch), and you'll have one cubic centimeter.
What does this have to do with the size of a motorcycle engine? And why does a higher number of ccs on the tank translate to a faster motorcycle shooting down the highway?
This brings us to the concept of displacement. Displacement measures how many cubic centimeters of the air-fuel mixture moves through one rotation of an engine cycle (each piston moving from top to bottom). For example, if one rotation of the pistons moves 125 cc of the fuel-air mixture through the system, then you have a 125 cc engine.
Now, 125 cc of fuel mixture, when ignited in the engine, will combust with a certain amount of force and propel the motorcycle with a certain amount of power. In an engine with a displacement of, say, 250 cc, more fuel will combust at once and more energy will be released.
On the other hand, a higher-displacement engine will burn more fuel, the bike will weigh more (and therefore need more power to go fast), and other considerations. But generally, a motorcycle with a higher engine displacement (measured in cubic centimeters) will have more power, being able to propel more weight and at faster speeds.




Now let us see what happens when you start a bike from rest.

The bike moves gradually when started. At this state, engine revs slowly – thus it can't produce enough power to road wheels to move the bike. But, even at low rev, engine does develop some torque. Using gearbox (say 1st gear), this torque is multiplied several times. Now the torque produces sufficient power to the road wheels to enable the bike to move. As engine revs higher, torque becomes less dominant and engine itself can generate enough power to make the bike move. So for this reason, you usually shift to higher gears as speed rises. After 60 km/h you can use top gear in most bikes.

Thus we note following points.
1. Engine's power becomes dominant in high rev and high speed. In fact, what will be the bike’s max speed depends on engine's power.
2. At low speed, it is the torque, which moves the bike.

For this reason, all engines produce max torque at lower RPM and max power at higher RPM.


Bike A: You have a very high horsepower (100hp) engine with very little torque (10ft/lbs), you will first be slow but eventually you will go very fast.
Bike B: You have very little (10hp) horsepower engine with very high (70ft/lbs) torque, you will accelerate very fast off the line, but then you won't be going very fast in speed.

 

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Wheelie

A wheelie is also a common motorcycle stunt. The principle is the same as the bicycle wheelie, but the throttle and rear-brakes are used to control the wheelie while a rider uses body mass and the steering to control the direction.


The world's fastest motorcycle wheelie record is 307.86 km/h (191.30 mph) by Patrick Furstenhoff. April 18, 1999. The world record for the fast wheelie over 1 km (0.6 mi) is 172.9 mph (278.3 km/h), set in September 2006 by Terry Calcott at Elvington airfield in Yorkshire, England. This event takes place every year and will be held this year on 21st & 22nd August 2010.


In some countries, such as the United Kingdom and USA,motorcyclists performing a wheelie on a public road may be prosecuted for dangerous driving, an offense which can carry a large fine and a ban of a year or more.In Pakistan, riders have had their motorcycles impounded for doing wheelies.

 

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Types of Wheelie


Clutch wheelies

are performed by disengaging the clutch and opening the throttle to let the engine race and then engaging the clutch abruptly.


Power wheelies

are performed by simply opening the throttle. If the engine has sufficient power, it will be able to lift the front wheel. Normally we can see these types of wheelies on the tracks where Rossi plays i.e Moto Gp tracks.


Bounce wheelies

are performed by opening and closing the throttle in time with rocking the rider's weight back and forth, thus pre-loading the front suspension so that the throttle is opening at the same time as the front suspension is uploading.


Circle Wheelies

are performed entirely within a circle. Can also be combined will all variations of wheelies.

 

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12 O'clock Wheelie
are the wheelie that are inclined to the angle made by the clock makes on 12 O'clock. This position of the vehicle is beyond the maneuverability level to a normal stunter.

High Chair
is that type of wheelie which is generally performed in two ways, either a highchair and then a wheelie or a rolling wheelie and then the rider shifts himself on the top most inclined part of the bike and maneuvers a bike.

Spreader
is another type of wheelie. In this the rider spreads his legs against the Wheeling bike and then performs a rolling wheelie with the spread legs, so you mustv'e imagined how the name was derived.




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Coaster
A wheelie that is balanced without the acting force of the motor i.e. with the clutch pulled in. The Wheelie is so far back beyond the balance point of the wheelie that the rider must constantly ride the rear brake to keep the wheelie from falling over backwards, effectively slowing down. A rider can pull in the clutch to create the effect of a wheelie with no engine noise. Conversely some riders will pull in the clutch and peg the engine on its rev-limiter, called a "rev-limiter coaster"




Frog
Wheelie standing on tank during wheelie



Seat Stander
Wheelie standing on the seat of the motorcycle.



Bar tricks


Ape Hanger
Hanging from the bars with one's hands while doing a 12 O'clock, scraping the bike's 12 o'clock bar and allowing the riders feet to drag behind the bike.


Cliff Hanger
Hanging from the bars with one's feet while doing a 12 O'clock.



Stoppie
Lifting the rear wheel of the motorcycle using momentum and braking force. Also referred to as an Endo.



Biscuit Eater
Stoppie with the rider's legs over the handlebars. Also known as the "highchair endo"



Burnout
Using the power of the engine and braking force to cause the rear wheel to spin, heating the rear tire and producing smoke.



Suicide Burnout
Burnout with the rider dismounted and standing in front of the motorcycle.



Chainsaw
An extreme form of Burnout performed by the stunter standing beside a motorcycle laying on its side holding the motorcycle exclusively by the right handle bar. Then causing the bike to "orbit" around the rider while maintaining control during the burnout.



Merry-Go-Round
Rider lays the bike on its side and climbs onto it. The rider then leans back on the bike while holding the throttle, causing the bike so spin round while doing a burnout.
Acrobatics

Hyperspin

Switchback
Any stunt performed with the body facing the rear of the motorcycle, opposite the direction of travel.



Christ
A stunt performed with the rider standing straight up on the seat or tank of the motorcycle with both arms extended while the bike is in motion. Also called a "Jesus Christ" or a "Cross". Can be combined with a switchback.



De activator
Riding a wheelie on idle and jumping off the back of the motorcycle.

 

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[dj gamaya]

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[dj gamaya]

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[dj gamaya]

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[dj gamaya]

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