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Suntour Seatpost


SUNTOUR SUPERBE PRO SEATPOST

The Superbe Pro post is an adjustable Road Racing seatpost, using two fastening bolts to grip and cinch the clamp. The upper clamp piece is made of Silver anodized, cast aluminum, with a square and a round recess cast into the top for a steel nut to seat. The upper clamp piece provides 1 1/4" of surface contact to the saddle rail. The lower clamp piece is made of Silver anodized, cast aluminum, with a single hole through it for one of the fastening bolts. The lower clamp piece also has 1 1/4" of contact to the saddle rail bottom. Between the two clamp pieces Suntour has fit a volute spring, (one of the springs used on quick release skewers), to keep the clamp open when the bolts are loosened, making saddle installation more convenient.

The head piece is made of cast aluminum, hollowed on the bottom to reduce weight, with the fastening bolts passing up from the bottom through the clamp pieces into the nuts over the upper clamp piece. The front fastening bolt (5mm allen head), holds the saddle and clamp on the post, while the rear fastening bolt, (5mm allen head), is used to make small saddle angle adjustments to dial in your perfect comfort.

The head piece is pressed into an aluminum alloy tube that has been turned on a lathe to the proper final dimension. The head piece is not only pressed to a one inch depth into the tubing section, but Suntour also has a 5mm aluminum rod running through the rear of the post. The head piece and is buried in the front of the tube section, (unseen from the exterior), to positively make sure the head and post don't separate. With the clamp perpendicular to the tubing section, the center of rail to end of tube length is 251mm. The weight of a 27.2mm Superbe Pro post is 281 grams. The Suntour Superbe Pro post is made in Japan, and is available in 26.8mm, 27.0mm, and 27.2mm sizes.

No longer made, we sold this post for $54.99





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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