"Torque /tork/ n: The measure of the force applied to an object to produce rotational motion, usually measured in inch-pounds. Torque is determined by multiplying the applied force by the distance from the pivot point to the point where the force is applied. As bolts and screws are tightened, the resistance causes bolts to twist and become distorted (they normalize once the force is removed). The measurement of this force is called torque and is measured by multiplying the applied force (pound) by the length (inch) of the fulcrum used to turn the object."

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As you probably already know, there are hundreds of nuts and bolts that hold the components together on your motorcycle. And, these components need to be fastened together correctly to make sure that your bike performs as safely and flawlessly as it was designed to.

 A lot mechanics and garage type builders do not correctly follow torque specifications or, sometimes, completely ignore them altogether. Although there are some bolts that do not require torquing and can simply be “snugged down”, the majority of the hardware on your motorcycle should be torqued to the design engineer's original specs.

Here's why:

The contact surfaces between any components that have been thoroughly analyzed for stress, fatigue, strain, or thermal expansion need to be fitted together within a certain tightness tolerance in order to successfully meet the design requirements.

The reason is that tightness between two components will affect many variables, including, but not limited to, vibration, stress, fatigue life, strength, thermal cracking, and durability.

For example, take a brake caliper. The guide bolts are installed to specified amount of torque (as per the manufacturer) and the bracket to wheel housing bolts are installed to their specified torque.

With insufficient bolt tightening on this component there is an obvious problem because the normal thermal and vibration cycles can loosen the bolts overtime and lead to catastrophic brake failure. Loose bolts will also cause the braking system to chatter and put more stress on the actual fasteners. And, if the bolts are loose, the bolts may be subjected to abnormally large amounts of shearing force (an adjacent force to the direction the bolt points to) and can easily break.

Over tightening is also a huge problem and sometimes even worse than under tightening. The bolts need to be able to stretch to compensate for the increased thickness of the parts due to thermal expansion. If those same caliper bracket bolts are too tight, then they lose their stretching ability and can fail as the brake parts expand due to high operating temperatures.

A good torque wrench is a necessity when you're doing any assemblies. However a torque wrench is meaningless with having the proper torque specs!

In this torque manual, you’ll find the torque value for virtually every nut, bolt, screw, stud, etc., for every component on an American V-Twin motorcycle. Something you need to keep in mind when dealing with various aftermarket parts and components is that the manufacturer of a certain part may have their own suggested torque values.

And the best part of this manual is that it contains a highly detailed index that's all hyperlinked together so all you have to do is simply click on whatever section you need and presto... you're there... no fumbling or endlessly searching through a bunch of pages to find what you're looking for!

Look, every person knows that the right tool for the right job can make a huge difference in the quality and ease of completing a project.

So just a measly $7 bucks ($7.00) you can get you hands on the most “must-have” tool every motorcycle builder or owner must have!

Simply click the link below and you’ll be taken to a Paypal page where you can either use your Paypal account if you have one... OR if you don’t just simple select the “pay by credit card”.  After your payment is processed you will be directed to the download page where all the info is to download your manual instantly! So wait a few seconds for the redirect.

If you have any questions or problems, email us at:

amicycle@gmail.com

Thanks,



P.S.  Here's a few torque tips:

When you are using a torque wrench for any of your assemblies remember...

When grabbing the torque wrench, make sure you grab far down the shaft, not up by the dial. Grabbing low gives you more leverage and control over the wrench and fastener.

When you are looking at your project, tighten the nuts or bolts down in a sequence that will apply load or pressure evenly across the item. Do not use it in a pure clockwise of counter clockwise direction. Whatever is being tightened needs to move down evenly or your readings may be off significantly.

When working on a series of bolts or nuts, tighten them until they are snug, then go back over them for a final tightening and reading. This is once again to assure that you are placing even load on the surface you are working on. This is good general information, but becomes absolutely necessary when using a torque wrench on a surface that requires specific torque pressure.

When using your torque wrench make sure that the bolt or nut moves freely along the threads you are tightening against. I like to use an assembly lube specifically designed for this application. If the fastener has resistance in its movement along the threads your torque readings will take that resistance into account as metered torque and while the readings might otherwise indicate that the fastener is properly torque, it won't be.

A torque wrenches accuracy may vary with age or abuse, so be sure not to buy a used one unless it has been recently calibrated, or you know where to get one calibrated.