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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DKG Brake BoosterDKG STRONG ARM BRAKE BRIDGE FOR CANTILEVER BRAKES
The Strong Arm is one of the earliest of the booster plates. ItÕs machined of 6.61mm thick 6061-T6 aluminum plate stock. There are 6 slots of three sizes milled out of the Strong Arm to reduce weight, and two holes, one on each arm end for mounting stud distance adjusters. The adjuster holes have a serrated outer edge which a mated adjuster fits into. The Strong arm is 136mm high and 123.5mm wide. Its inner height is over 3 1/2Ó (93mm), and has a 2.4Ó horizontal clearance between the ends at the mounting studs, allowing even the largest tire to fit easily. To accommodate the spacing of different mounting studs the hole through the adjusters are offset so the adjuster can be re-positioned until the distance between them is centered on the studs. The adjusters will work with frame stud spacing from 74mm to 86mm. The Strong Arm comes with two 45mm long steel pieces of all thread, two steel nuts, two steel cap nuts and 6 flat washers for spacing to replace the mounting bolts and hold the plate. The Strong Arm is easily adjustable, light, will fit all width of tires, and will even assist in correcting for mis-brazed studs. The aluminum plate and adjusters weigh 77.5 grams, and the steel mounting hardware weighs 34.5 grams for a total weight of 112 grams. The DKG is the only adjustable booster that when adjusted remains fixed even though the bolt may loosen up. Made in Northern California, They are anodized in Blue, Black, Lavender or Silver. Color - B-BK-L-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... |
