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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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Gorilla Brake BoostersGORILLA BRAKE BEEFER CANTILEVER TYPE
R. M. Innovations of Durango, Colorado sells two types of booster plates. The cantilever Gorilla plate is die cut from 3.07mm thick 6061-T6 aluminum plate. The piece has 13 holes die-cut around the arms in graduating diameters from 6.4mm to 14.1mm in size. The plate has a total height of 134mm and a total width of 132mm. The inner height is 93mm with a 53mm opening at the mounting stud area. The cantilever Gorilla comes with two 6mm by 1mm bolts having a 34.5mm length, a 5mm hex fitting and 9 gram weight. Two aluminum spacing tubes are provided that are 15.9mm long, also included is two aluminum flat washers. Instructions for installation come with the packaging. The canti Gorilla Brake Beefer weighs 47 grams and mounting hardware adds another 22 grams, for a total weight of 69 grams. It is available in Blue, Black, Lavender, Red or Silver. Color-B-BK-L-R-S $ Price in Catalog GORILLA BRAKE BEEFER U-BRAKE TYPE
The U-brake version of the Gorilla brake beefer is made of 3.11mm thick 6061-T6 aluminum plate. The U-brake type of the Gorilla plate is machined on a milling center rather than being die-cut. It has 7 holes graduating in diameter from 7.85 to 12.65mm. The piece has a total height of 65mm and total width of 112.3mm. The inner height is 36.5mm and the inner width between the arm ends is 65.5mm. The U-brake version comes with two of the same bolts above and a set of spacers, including two brass bushings, two aluminum spacers and two aluminum flat washers. Installation instructions come on the packaging. This fits brakes only with higher stud placement on the frame. The U-brake Gorilla Brake Beefer weighs 21.5 grams and mounting hardware adds another 24 grams for a total weight of 45.5 grams. It is available in Blue, Black, Lavender, Red or Silver. Color-B-BK-L-R-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... |
