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Bar Clamp
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 40336 24mm Stroke U Shaped Bar Push Pull Type Toggle Clamp 180Kg 397 Lbs  US $11.39
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 Flanged Base U Shape Bar 90Kg 198 Lbs Holding Capacity Toggle Clamp US $6.83
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Sales of BMX bikes are increasing faster than almost any other type of bicycle. BMX bikes can be seen on every street, sidewalk and even in their natural habitat, off-road. Even if you never leave your house you've certainly seen such bikes on TV. Sure, you probably know what a BMX bike is, but what you probably don't know is what exactly differentiates a BMX bike from other bikes. We'll tell you how they're different.
We'll start with their origin. It's quite simple, really. Bikes remained pretty much the same for many decades after they were invented, but the popularity of off-road motorcycle racing, or motocross, during the 60's changed that. Kids saw the pros racing around on their dirt bikes and taking them off dirt ramps. They wanted to be like their heroes so kids imitated them on their bikes, which, at the time, weren't made for such rough-housing. It didn't take long for bike manufacturers to catch on and start manufacturing bikes made specifically for the rigors of racing and jumping off-road. Soon there were sanctioned bicycle motocross (BMX) all over the country. The BMX segment of the market grew and grew and continues to expand today. And of course most the kids (and adults) you see on these bikes don't ever race and probably don't jump them off anything more daring than a curb. Still though, BMX bikes are made to take a beating.
Now, to discuss the physical attributes of the BMX bike which makes it different from other bikes. The particular features can be narrowed down to the frame, the wheels/tires, the brakes, and the gears.
The frame on BMX bikes is designed to be very light so it can be easily maneuvered and very strong so it can withstand the stresses of jumping and racing. The light weight of a BMX frame is also important because a lighter bike can save you valuable seconds in a close-fought BMX race. Aluminum and chrome-moly steel are the two materials most favored by BMX'ers. Regular bikes are usually made from cheap grades of steel prone to rusting or even breaking when put under a lot of stress.
Another distinguishing feature of BMX bikes are their wheels and tires. Most BMX bikes have 20" rims, of course they can also be purchased in other sizes. There is the 12" size for young children just learning to ride. These days kids are learning to ride bikes before they learn to read! The next size up is the 16" wheel. These bikes are mostly used by kids from the ages of 8 to 12. Once they enter the teen years, most kids ride the 20" bikes. This is the size favored by many adults and pros, as well. There are BMX bikes with even larger wheels or in-between sizes but they aren't as popular.
The tires on BMX bikes are different from conventional road bikes. They're knobby to give them excellent traction on dirt trails and tracks. In fact, they're very similar to mountain bike tires, just smaller.
Speaking of mountain bikes, such rides often have as many as 21 gears! Road bikes and beach cruisers typically don't have that many but they do range from 3 to 18 speeds. BMX bikes, on the other hand, have just one gear. They have one sprocket up front and one on the back wheel. That's it, they use just one gear because they're made for all-out sprints and to have precise control for freestyle tricks.
Another feature which differentiates BMX bikes from conventional bikes are their brakes. BMX bikes often have just a rear brake. Having a front brake increases the likelihood of accidentally using just the front one and causing an accident. Plus, racers don't need the extra braking power because they don't want to slow down! A BMX bike made for doing tricks will have a front brake, though.
BMX bikes also usually come with pads to protect the rider during accidents and wrecks, which can happen a lot during races. Most racers don't bother with pads, though, they're too cool for that. If the bike does have pads, they're usually on the top bar, handlebar clamp, and the handlebar crossbar.
BMX bikes are a booming business, and their popularity has increased across almost all segments of the market. You can often see BMX riders on televised competitions and commercials. BMX bikes are being ridden by all sorts of people, from professional riders to five year olds just having fun, adults who never grew out of them, and everyone in between.
BMX bikes are available in a range of sizes to accommodate all types of riders and all ages. They also have many specialized features to suit a variety of uses. There are, of course, a wide range in prices, too. If you are considering buying a bike for yourself or someone else, your best source of information are the people at your local bike shop. There's also tons of reliable information online. The two main issues you need to consider are how the bike is going to be used and how much you are willing to spend. From there it's up to you.
Gregg Hall is an author living in Navarre Florida. Find more about this as well as cycling gear at http://www.bicyclepartsandclothing.com.
Woodwork Tools
Wooden tools created by our primitive ancestors were located in Lehringen. Some spears were found in Germany. Wooden weapons for hunting and flint tools for carving show that primitive people were already knowledgeable on how to create materials that would help them obtain their needs.
There are two ancient civilizations that are often mentioned when woodworking is the subject matter. These are the Egyptians and the Chinese. This is because woodworking has been shown in their ancient sketches and drawings.
Also, a vast amount of Egyptian furniture like chairs, tables, beds, stools and chests have been encased in tombs. Preservation of such materials shows that the ancient Egyptian people were inclined to use wood. Coffins that were located in the tomb were also out of wood.
Egyptians used metal for their woodwork. Copper and bronze were the main tools for woodworking. These were turned into adzes, pull saws, axes, chisels and bow drills.
Ancient Egyptians were the first civilization to do veneering. They were also the first to use varnish, therefore resulting to what is now termed as “finishes.” They used native acacias and the wood from the sycamore and tamarisk trees.
As for the Chinese, wood working was said to have started when Lu Ban and his wife Lady Yun brought plane and chalkline to China. This was during the Spring and Autumn period. From them on, Lu Ban’s teachings were said to have been recoreded in the book “Lu Band Jing” or “Manuscript of Lu Ban.”
This was written 1500 years after he died. The book is complete with elaborate descriptions of the necessary dimensions in building different kinds of furniture like tables, altars and flower pots.
In the modern times, these are the tools a woodworker must possess:
* Measuring and Marking tools
_ protractor, tape measures, rules
- scratch awls, marking knives, marking gauges
- plane gauges in order to figure out how flat the surface it
- hygrometers in order to figure out how much water the wood has
- levels
- winding sticks
- combination squares, try squares, straightedges
* Cutting tools
- hands saws like the rip saw, cross cut saw, keyhole saw, bow saw, coping saw, tenon saw, gent’s saw and dowtail saw
- power saws like the chainsaw, radial arm saw, miter saw, band saw, scroll saw, hole saw, table saw and circular saw.
* Shaping tools
- hand planes like the smoothing plane, shoulder plane, spear plane, rabbet plane, scrub plane, block plane and jointer plane.
- jointer and thickness planer
- router
- rotary tools
- gouge and chisel
- drill press and chisel mortiser
- knifer
- rasp
- lathe
- other hand shaping tools like the adze, axe, froe, drawknife and spokeshave
* Assembly tools
- screwdriver
- mallet and hammer
- hand or power drills
- clamps like the F-clamp, G-clamp, C-clamp, miter clamp, bar clamp, band clamp and sash clamp
* Finishing tools
- sandpaper that can be used alone. It can be used with power sanders like belt sander, palm sander, orbit sander, disc sander or sanding blocks
- steel wool or bronze wool for polishing and applying stain
- file
- scraper
- spray guns used to apply lacquer
- brushes for applying varnish
* Accessory tools and furniture
- workbench or the bench or table where one sits or stands. This is where the woodworking process takes place
Kinds of workbench
1. dog hole or a round or square hole that allows clamping and holding devices to be attached
2. bench dog or a peg that is inserted into a dog hole that lets in the clamp pressure
3. hold fast or the rod that is bent when put into the dog hole. It is used to put boards into position
4. vise or a clamping apparatus that holds wood in various positions during woodworking
5. bench hook that is laid against the wood that can be pushed during woodworking.
- Sawhorse is the four legged stand that often comes in pairs. It supports long boards, sheets and panels.
About the Author
Woodworking Websites have become a lot more than a hobby, I now have a very successful and stress free life by helping others build and own their own Website Businesses.
My ebook "Chewing Bread for Ducks" has become very popular with people who want their website on Page One on Google. (and other Search Engines of course).
Happy Days
What modifications would you make to a CRF150R - Expert?
I have changed the bars, grips, triple clamp and numbers (of course)
What mods should I consider for my bike?
Serious please guys...
try to invest in an exhaust system. this will help the bike breath better, thus giving you more useable power.
Kona Stuff
Surprisingly versatile play bike
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