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Pedros Grips


PEDROS BLACKWALLS GRIPS

Blackwalls are a very stout and sturdy grip. With a wall thickness of 2/10" there is just more of the grip around the bar. Blackwalls have an overall length of 4 1/2" with a trough 1/8" from the end to wire on the grip or use as a mark to cut the end off for bar end use. The grip surface is made of the Pedros and Blackwalls logos rising 2mm from the grip bed. The rubber is less soft, more stiff and more abrasion resistant than most other grips we've written about. Our writing in the tire section about rubber will tell you that they must have a greater carbon content. Pedros has tried to take a "green" step forward by introducing Blackwalls as having been made of 65% recycled rubber, and exactly they say that it's composed of 15% old tires, 35% virgin rubber and 50% "used eye- dropper plungers". They may really mean eye-dropper "bulbs", the part you compress between your fingers to draw the liquid into the dropper. A conversation with Bruce Fina at Pedros revealed that their source for pelletized rubber (grip rubber is heated in large batches and extruded into strands that are cut to form pellets, which are shipped to the injection mold site where the pellets are re-heated to re-melt them and the molten rubber is injected into the grip "insert") has found a way to include 15% of what is referred to as "crumb" rubber derived from the tread stock of auto tires, and to recover the eyedropper bulbs from a medical waste/recycling concern which are then re-melted to make the strand for pellets. Mr. Fina mentioned that the use and composition of the recycled rubber for their pellets has been certified by the Green Cross, an organization formed to enhance the amount of recovered for re-use waste products. Black only, Blackwalls have a durometer hardness A/56 and a pair weight of 83 1/2 grams. $ Price in Catalog


PEDROS SLIMWALLS GRIPS

$ Price in Catalog


PEDROS BOBKE 'PRAYER STIX' GRIPS

$ 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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