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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Frank's Pump PicksFloor Pump PicksRecomended: I personally use a Silca Pista Track pump at home. I find the handle a bit small and would recommend the Super Pista at this time. The Silca floor pumps work flawlessly, all of them. If I couldn't find a Silca floor pump, I would use the Medai Top Super. Not Recommended: There have problems with the molded plastic bases of the Zefal and the Bell Sports/Blackburn floor pumps had a problem with the TP-1 aluminum base. The Blackburn TP-2 is a much better pump and costs somewhat more. Bike Frame PumpsI used faithfully for many years a Silca Impero pump which was becoming wildly popular with MTB riders after many years of use by road bike riders. It's availabilty in stores has dropped off and its lack of availability is the only reason I don't recommend it now because is a simple easy to maintain pump. Recommended: For road riders a Silca Impero if you can find it. Second choice Zefal HPX For MTB riders a Zefal Double Shot frame pump. It's plastic, light, works and can be strapped to the frame with pump straps. Bike Mini-Pumps There are no mini pumps I can recommend. I used to laugh at the use of co2 inflators and consider them un-environmental but after spending the time required to use a min-pump of any type to inflate tires, I've got say they are a viable alternative. Mini-pumps can't do the job properly, in any reasonable amount of time and sucessfully allow you to remove the air chuck while leaving the tire at pressure. Recommended: If you think you want a mini-pump get a co2 inflation system instead and recycle the spent cylinders. |
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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... |
