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Wilderness Trail Bicycle Brake Pads


WILDERNESS TRAIL GRIPMASTER BICYCLE BRAKE PADS

The Gripmaster Brake Pad has a nicely built pad holder made of aluminum. The pad holder is made in two parts, a pan which the pad material is bonded to, and a non-threaded mounting post. The pan is stamped from aluminum plate and then anodized. The pan section of the holder is available in Blue, Black, Lavender, Red or Silver with the mounting post always in Silver. The pad holder is 62mm long and 14mm high with a rim contact area that's 57mm by 9mm in an arched shape which mimics the curve of the rim. The pad material is made for Wilderness Trail by Kool-Stop/Everett Manufacturing and comes in three versions. The first is "conventional" or standard (by us) which is Black in color and tests to an A/91 hardness. The second is called "abrasive" which is Orange (in fact about the same color as the Scott/Mathauser pad material which is made in the factory). This pad has a extra abrasive element derived from a volcanic rock which assists the pad in preventing squeals and wears away rim imperfections. The "abrasive pad tested to an A/92 hardness. The final variation of the Gripmaster, known as "Dual-Compound" has 41mm of the Black standard brake pad and 16mm of the Orange abrasive pad material bonded together. Because of the workmanship in the holder and the general cost of this pad set, Wilderness Trail is available to rebuild the pads if you send them to WTB when worn out. Gripmaster pads are sold in pairs. The pair of Standard compound pads weighs 39.5 grams, the Abrasive pair weighs 44 grams, and the Dual-Compound pair weighs 41.5 grams. Specify pad material type and color of holder pan. Made in USA $ Price in Catalog





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...


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