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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Mavic 330 SeatpostMAVIC 330 ROAD SEATPOST
Ownership of a Mavic 330 post brings with it, the understanding that you are a patron of the arts in workmanship and design. The upper and lower clamp pieces are forged, the other parts are created from aluminum stock that is machined to final shape. The upper clamp piece is forged with two features, one is a cut-out for the two graduated posts, on top of the lower clamp piece. The post positions the upper clamp piece squarely and precisely on the lower clamp piece. The other feature forged into the upper clamp piece is a 1/2" wide groove that runs front to back in an arc. The groove provides a seating for a round aluminum nut with it's sides milled to fit the taper of the groove. The nut is the clamp assembly fastening nut, which is beautifully machined from billet aluminum then Black anodized. The upper clamp piece provides 3/8" of contact to the saddle rail at each of the four corners, while the lower clamp piece provides an inch and a half of continuous surface for each rail. The head piece for this post is machined from a single piece of billet aluminum, with exact edges, showing precise millwork. A look inside the post reveals careful drilling on the underside of the head piece, to reduce weight, before being pressed into the tubing section. The tubing section has been turned on a lathe to achieve the outer dimension, hard anodized Black and then has "MAVIC" and the seatpost size center-etched into the back. The pressed head piece extends for 1 3/4" into the tubing section. A single, steel, 6mm allen head cap screw holds the saddle and clamp assembly, so all adjustments in angle and handlebar distance are performed with a 6mm wrench only. Brilliant execution and flawless workmanship on a simple but clean design, as is typical of so many Mavic items. It is only made with a Black tube section and a Silver clamp assembly. With the clamp perpendicular to the tubing section, the center of rail to end of tube length is 236mm. The weight of a 27.2mm Mavic 330 post is 279.5 grams. The Mavic 330 is made in France, and is available in, 26.2mm, 26.4mm, 26.6mm, 26.8mm, 27.0mm, and 27.2mm sizes. No longer made, we sold the 330 for $71.99 |
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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... |
