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Bontrager Race Grip


BONTRAGER RACE GRIPS

Made of rubber, by Co-Union in Taiwan, for Bontrager, these grips have a solid, firm and tactile feel. They are round in shape with the upper half of the grips surface, where the palm contacts, made smooth. On the lower half of the grip, feathering in on the sides, there is a slightly raised grid pattern, within taller circular ridges for finger tip grip surface. This feature of smooth top and raised grid on the lower surface is an improvement over the original Race grip which has raised grids and ribs over the entire surface. The fully raised rib model was discontinued in favor of this current model once Bontrager was aware that riders preferred a smooth top surface. The Bontrager Race grip has short flanges at both ends, and there is no thumb/grip shifter interference. The grip is open at both ends, so they can be used on bar ends without cutting. They also come with a pair of thick, tight fitting, heavy duty, press-in, rubber grip ends for use on handlebars. Black only, the grips weigh 72 grams per pair, with plugs, are 4 1/2 inches long, and have a durometric hardness of A/46. The plugs weigh 12 grams.Now that Mr. Bontrager has sold Bontrager Cycles to what is being call the "Microsoft of the bike industry", Trek... it is un-clear what the future of these will be. $ 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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