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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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Sampson Pedals
SAMPSON STRATICS 575 PEDALSThe Stratics 575 is their basic pedal, with all the mechanical function and features of the other models. The pedals have a Silver cover on a Platinum Grey body, and use the machined steel spindle with the sealed cartridge bearing for it's internal bearing. It lacks the Delrin/Teflon bearing tube for the outer end of the pedal load. The internal spring for this model is the Blue "Sport" spring. The weight of the pair of 575 pedals is 258.5 grams. The weight of the Stratics cleat set and mounting hardware is 85.5 grams. $ Price in Catalog
SAMPSON STRATICS 675 PEDALSThe Stratics 675 pedals have a Red cover on a Black body. The 675 pedals use the machined Cro-moly steel spindle, drilled end to tend with a 4mm diameter hole to reduce weight. The outer 5mm at the end of the spindle has the diameter reduced from 9.4mm to 7mm. This reduced diameter in the spindle fits inside a tube of Brown Teflon-like material used for the outer load bearing to support the spindle's load over a broader area. The tube, positioned in the pedal body, is nestled into its far side. The tube functions as an outer bearing to support the spindle's load over a broader area. The retention spring on this model is the unpainted Comp spring. The weight of a pair of 675 pedals is 225 1/2 grams. The weight of the Stratics cleat set and mounting hardware is 85 1/2 grams. $ Price in Catalog
SAMPSON STRATICS 775 PEDALSThe Stratics 775 series introduces the Titanium element. In this pedal set the steel spindle used in the previous pedals is replaced with a machined Titanium spindle for further weight reduction. The standard steel spindle weighs 65 grams, while the Titanium version weighs just 36 grams. The Titanium spindles are machined from Ti 6Al-4V rod and treated by Sampson afterward with a special surface treatment that increases its surface slickness, making it more slippery. This treatment also increases the spindle's surface hardness, raising its Rockwell hardness (discussed in the Metals article). The spindle, like the 675, has a reduced diameter at the outer spindle end, which fits in a tube of Sampson's Brown Teflon-like bearing material. The cover on the 775 pedals is dark Blue, and riveted to a Platinum Grey body. The internal retention springs installed are the Blue Sport spring, however each 775 pedal set comes with a separate pair of the unpainted Comp springs and instructions for changing them. The weight of a pair of the Stratics 775 pedals is 199.5 grams, while the weight of the Stratics cleat set and mounting hardware is 85.5 grams. Sampson strongly recommends that the 775 pedals are not be used by riders weighing over 180 pounds (82 kilograms). Stratics 775 $ Price in Catalog
SAMPSON STRATICS REPLACEMENT CLEAT SETThis is the same pair of Black cleats with the two installed adjusting screws and necessary mounting hardware, that come with each pedal set. The weight for the set is 85 1/2 grams. $ 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... |
