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Campagnolo Freewheels/Cassettes


Campagnolo Cassette Delivery Warning

Campagnolo USA does not carry an inventory of parts for sale to bike stores. Instead they allow wholesale/distributors to buy directly from Campagnolo Italy with Campy USA forwarding the order. The importer/distributor receives the goods 90 to 100 days later, relying on good forcasting so the Campy parts sell fast enough that the inventory carry costs are met. In general none of these distributors take very big risks in the product mix they buy. Even though Campy literature may claim that they manufacture various combinations of parts, if no distributor orders it... for all practical purposes they don't really make it. They make it available to distributors that may choose never to buy and sell it. Just try to find a Record OR rear derailleur, even Campy USA can't recall a distributor in the US that ordered them in 1995. Many of the cogset variations may not be avaialble at the time you order.


CAMPAGNOLO EXA-DRIVE STEEL 8 SPEED CASSETTE

The Campagnolo cassette freehubs use their own spline pattern. If the cassette that comes with the hubs wears out, a Campy replacement is your only choice. The cogs are die-cut from plate steel, then stamped to make the Exa-Drive teeth which are twisted with a tapered front face. Each of the cogs has one or more sets of "ramped" teeth which are stamped to a smaller thickness, then they are chrome plated. The cogs are 1.8mm thick and come with 3.0mm Black plastic spacers so they conform to industry index width standards though they have the unique spline pattern. A chromed steel lockring holds the cogs and spacers in place. The notch pattern of the Campy lockring is close enough to the Shimano lockring pattern that the Park FR-5 tool can be used to tighten or remove it. These are made to work with Record, Record OR, Chorus, and Athena rear cassette hubs. The steel cassette sets are available in 7 combinations and we sell six of them.

12/19 - Cogset Type B8  (230.5g)$ Price in Catalog
12/21 - Cogset Type C8  (     g)$ Price in Catalog
12/23 - Cogset Type D8  (     g)$ Price in Catalog
13/21 - Cogset Type K8  (263  g)$ Price in Catalog
13/23 - Cogset Type L8  (     g)$ Price in Catalog
13/26 - Cogset Type B8  (320  g)$ Price in Catalog
12/28 - Cogset Type I8  (     g)$ Price in Catalog

CAMPAGNOLO EXA-DRIVE SUPER RECORD ALLOY CASSETTE

The same cassette cogs described above are also avaialable in aluminum alloy. The Super Record rear hub is made with an aluminum freehub cog carrier. Using a steel cog on it will damage its shape. These are Campy recommended solutions. The first position cog and the lockring are still made of steel. The SR cogs also come with the 3.0mm plastic spacers. These 8 speed cassettes are made five of the same sizes used for the steel models.

12/19 - Cogset Type B8  (   g)$ Price in Catalog
12/21 - Cogset Type C8  (   g)$ Price in Catalog
12/23 - Cogset Type D8  (   g)$ Price in Catalog
13/21 - Cogset Type K8  (   g)$ Price in Catalog
13/23 - Cogset Type L8  (   g)$ 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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