Reach BikePro on a 24 hour basis at 803-280-1537 Terry Dunbar is on duty as the technical expert, who also speaks Spanish as well as English and has quantities on hand information. Call her now for any questions about Bike Pro you may have.
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Reach BikePro on a 24 hour basis at 803-280-1537 Terry Dunbar is on duty as the technical expert, who also speaks Spanish as well as English and has quantities on hand information. Call her now for any questions about Bike Pro you may have. |
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Air Zefal Co2 Inflator
ZEFAL AIR ZEFALThe Air Zefal uses a machined aluminum adapter sleeve to get the compressed air into the valve. The adapter will fit directly onto either a Presta or Schraeder valve with no necessary modification. One of the Air Zefal draw backs is there is no way to regulate the amount of air inserted into the tire. The adapter has internal threads at both ends, one side for the valve stem, the other for threads on the CO2 cartridge to screw into. The neck on the CO2 cartridge is threaded to fit into the adapter. The adapter is first screwed on the valve to make the seal, then the cartridge is turned into the adapter releasing the air into the tire until the cartridge is empty, which takes just a moment. There is no provision for the partial use of cartridge, nor is there a way "store" or "save" the un-required or un-spent air in a cartridge. The required threaded neck cartridges are sold in three sizes 12 grams, 16 gram, and 25 gram. This size has to do with the weight of the compressed gas in the cartridge only, a 12 gram cartridge in fact weighs 43 grams. The adapter weighs 11.5 grams. Consult the cartridge inflation table to determine which cartridge size will deliver the tire pressure for your sized tire. Air Zefal with 2-12 grams cartridges $ Price in Catalog |
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In-depth Information About Metals Aluminum Aluminum is extracted electrolytically from bauxite ore. It is made by the electrolysis of aluminum oxide which is found in larger concentrations within bauxite ore. Bauxite is a mixture of the hydroxides of aluminum, together with other impurities such as oxides of iron, titanium, and silicon. Bauxite is produced by the weathering and change of aluminum silicate rocks usually found in tropical and semitropical regions where climate has produced an accelerated weathering process. Bauxite is not a rare ore and is widely available in the US, the Caribbean, and Europe. Approximately 4 pounds of read the full article... Beryllium Beryllium is a specialty metal that is steel-grey metal in color, with an extremely low density, making it very light weight. At 1.85 grams to the cubic centimeter, its density compares to that of magnesium. It is also a high strength metal, making it possible to design light weight, thin membered parts with ahigh stiffness. A column made of beryllium to support a load placed directly downward on top of it, will have a greater load carrying capacity, and be lower in weight than any other metal of equal size. Until the 1950's beryllium was used read the full article... Titanium The element titanium was discovered in 1763 by an English cleric, William Gregor who was an amateur chemist with an inquiring mind. It was in the black sands of Cornwall that he discovered the new element that had up to that time, attracted little scientific interest. A few years later, an Austrian, Klaproth, extracted the same element from an ore widely known as "rutile", which is a mineral consisting of titanium dioxide (one titanium atom, two oxygen atoms), that is a reddish-brown substance with a slight metallic luster. While rutile is the highest grade read the full article... Metallurgic Hardness Testing There are three types of tests used with accuracy by the metals industry,they are the Brinell hardness test, the Rockwell hardness test, and the Vickers hardness test. Hardness is the property of a metal which gives it the ability to resist being permanently deformed (bent, broken, or have its shape changed), when a load is applied. The greater the hardness of the metal, the greater resistance it has to deformation. Since the definitions of metallurgic ultimate strength and hardness are rather similar, it can generally be assumed read the full article... |
