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The First Factory © 2001-2009 H-D.82

A Brief History of Harley-Davidson V-Twins

Harley Davidson V-twin engines have been around almost as long as their motorcycles. V-twins get their name from the distinctive V-shape formed by the angle between their two opposing cylinders. Harley...

1 comment    motorcycle engine harley davidson
Pat Benatar73

10-Sexiest-Female-Rock-Voices

What makes a woman's voice sexy? To me, it's a scratchy, kind of dirty voice. But what I am listening for in a woman's voice transcends her looks, style of music and in some cases even her vocal talent. Most...

27 comments    women music sexy
Hard-tail or Rigid Frame (Thompson Choppers frame pictured)71

Hard-tail vs. Soft-tail Frames, The Primary Differences

I am often asked about the differences between hard-tail and soft-tail frames. So here is a quick comparison between the two explaining their primary differences, including a quick reference chart. Hard-tail...

0 comments    motorcycle comparison frame
Quart of Oil68

How To Read A Motor Oil Label

Being able to understand the label on a quart of motor oil is important. Oil is crucial to the proper functioning of an engine. Besides just lubricating parts, oil is used for cooling and cleaning the hardest...

0 comments    how to automotive weight
Custom Chopper With Tube Forks76

Motorcycle Front Ends

When it comes to creating a custom chopper or customizing a motorcycle, the front forks (front end) of a motorcycle will have a significant impact on both the ride and aesthetics. The primary function of...

3 comments    motorcycle motorcycles active
Brake Fluid Comparison Chart68

How Does Brake Fluid Work?

There are three common types of brake fluid used in braking systems, and all work adequately. The three types are DOT 3, DOT 4, and DOT 5. DOT stands for the Department of Transportation, whic is a branch of...

0 comments    maintenance moisture inspection
Fig. 1 - Right Triangle64

Right Triangle Trigonometry Part 3

Now that the ratios have been solved, it's time to put the trig functions to work. See how to to use Sine, Cosine and Tangent when solving for the angles and the lengths of the sides of the right triangle.

0 comments    math mathematics ratio
Primary Drive - Chain Drive71

Motorcycle Primary Drive

a motorcylce primary drive serves to transfer rotation, generated from the engine, to the clutch. One pulley, or sprocket, of the primary drive is connected to the crank shaft, while the other is connected to...

0 comments    motorcycle bike motorcycles
72

The Hypocrisy of PETA

Did someone draw a new line in the sand? Apparently, to be a good citizen of the world, I now have to feel guilty if I swat a fly (regarding the Obama flyswatting incident). What am I to do about mosquitoes?...

15 comments    animals obama organization
Harley Davidson Front End74

Fork Length, Rake and Trail

One of the most crucial components when building a custom chopper, or customizing a motorcycle, is the front forks. Whether you choose tube forks, springer forks or girder forks the right front end will...

3 comments    motorcycle motorcycles frame
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