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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Bottom Brackets Brake Systems
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Bottom Bracket AccessoriesACTION TEC DRY VALVE
All the water that gets into your frame, either through condensation or direct entry, eventually ends up in the bottom bracket shell, where it damages the bearing assembly. The Dry Valve provides a safe opening in the bottom bracket shell for this water to evacuate. The Dry Valve is made of stainless steel, with a one-way rubber gasket that is conically shaped on it's underside. As water finds its way into the B/B shell it collects in this gasket area and is released to the ground. It's easy to install. You remove your bottom bracket and drill a small 5/16" hole on the underside of the B/B shell. The Dry Valve is driven into the shell with the tool that Action Tec provides using light hammer blows. You then reinstall your B/B and cranks, and the task is finished. The practical time to do this is when you replace or regrease your bottom bracket. The Dry Valve weighs only 2.5 grams, and is a perfect addition to any B/B purchase. $Price in Catalog
ACTION TEC TITANIUM REPLACEMENT SPINDLE
Long term fatigue and failure, or merely changing your frame or cranks may obligate you to get a shorter or longer spindle. Action Tec spindles are available separately. They are machined from Titanium 6Al-4V rod and drilled through to reduce weight with carefully tapped crank bolt threads. The 17mm outer diameter of the spindle is smooth. The spindle comes with a pair of steel crank bolts and washers, which as a set, weigh 30.5 grams. The spindles are available in 109mm, 112mm, 120mm, 122.5mm, 124mm, 128mm, 130mm, 132mm, and 135mm lengths. The 124mm long spindle weighs 90.5 grams. Length-09-12-20-22-24-28-30-32-35 / S $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... |
