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The TM-1 is for anyone building or truing wheels, diagnosing wheel problems, or assembling new bikes. The TM-1 Tension Meter includes a printed table to convert tension reading to kilograms force. Because of new and varied steel bladed aerodynamic spokes, there is a webpage that acts as a chart calculator for steel bladed spokes not on the table, for this please go to http: Download File.
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Product code: Apart from a high-quality spoke material, a balanced and correct spoke tension is essential for the stability and durability of a wheel. The Park Tool Delivery time 2 weeks.
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The Park Tool TM-1 spoke tension meter accurately and reliably measures the absolute tension of each park tool spoke tension meter - tm-1 the spokes, as paypal credit card no interest as the relative tension between all the spokes in a wheel.
Practical and easy to use, it works on nearly any bicycle spoke — whatever the diameter, material and shape might be. As the wheel rotates while in use, the spokes that are on the bottom next to the ground actually lose tension momentarily. A high stress cycle fatigues the metal and leads to spoke breakage.
Notice the crack at the red arrow. Too much tension can also lead to failure of the hub flange.
The wrench flats of the spoke nipple women road bikes become deformed and rounded by forcing the nipple to turn while the spoke is at too high park tool spoke tension meter - tm-1. In addition to achieving proper spoke tension, it is also important for all the spokes in the wheel to have approximately the same relative tension. Relatively great differences in tension between each of the spokes will result in a wheel that is not laterally stable and that will come out of true more easily and more frequently.
The recommended tension for spokes in bicycle wheels can be as low as 80 Kilograms force Kfg and as high as Kilograms force. As a rule of thumb, it is best to set tension as high as the weakest link in the system will allow, which for a bicycle wheel is usually the rim. Therefore, to obtain a spoke tension recommendation for a specific wheel, it is best to contact park tool spoke tension meter - tm-1 rim manufacturer. Rim true, bar ends mtb run-out, is dependent upon spoke tension and on the original manufacturing tolerances of the rim hoop before the wheel tebsion even built.
Good quality rims may vary in round less than 1mm before being built.
Other units of force sometimes used are Newtons and pounds force. One Kilogram force is approximately equal to 10 Newtons or 2.
As an example, a spoke tension is Kgf. This spoke would be equal to approximately Newton or pounds force.
The conversion table is based on the diameter and size of the spokes. Gauge systems are arbitrary assignments of numbers to the relative size of the wire or material.
Gauge sizes are often used for sheet metal, needles, shotgun size, and wire. There are several systems used depending upon the specific industry.
For example, in the electrical prak, wire gauge is determined by a formula bmx bikes tampa on resistance per unit park tool spoke tension meter - tm-1. The gauge system can be confusing because the size of the wire diameter decreases as the gauge numbers get larger.
Relatively smaller gauge numbers mean a relatively larger wire. Gauge systems often result in confusion for manufactures and users.
Because of this, it is best to simply use the measured diameter sizing of the spoke. The TM-1 conversion chart has tension columns for different spoke diameter, measured in the middle of the spoke where the TM-1 engages.
For bladed spokes, measure both the thickness and width of a blade major and minor measurements. When taking a TM-1 reading measurement on a bladed spoke use care to hold to the tool square to the blade profile.
If the tool is held crooked it will not give an accurate reading. If the chart does not have the correct size of steel bladed spoke, use the Wheel Tension App.
The average tension is the sum of the individual spoke tension measurements, divided by the number of spokes measured.
News:Accurately measure the absolute tension of each of the spokes in a wheel—as well as the relative tension between all the spokes in a wheel—with the Park Tool TM-1 spoke tension meter. Pick up in store - Free Find a store near you. You've Missing: Choose.
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