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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WTB Hubsets
WILDERNESS TRIAL BIKES HUBSETThese are well designed and crafted freewheel hubset. The hub shell is a one piece aluminum construction that is turned and polished. The hub shell has special precision sealed bearing cartridges pressed into it. These cartridges have been re-worked by WTB to permit fresh grease to be injected into the bearing with a special rear seal that allows old grease to be purged from the bearing at the same moment, where it can be wiped away at the axle ends. To access this feature of the hub there are two grease "ports" pressed into the hub shell, one for each bearing side. With the "Goose Greaser" grease pump, the miniature "zerk" fitting is opened and allows grease from the outside world into the inner bearing. These are the two openings at the right and left of the Grease Guard logo on the shell. Through the bearings and the hub shell is a thinwall, hollow, stainless steel axle. To assure a perfect fit to your fork ends and dropouts the hubs come with several thin precision stainless steel and aluminum spacers. At the both ends of each axle are forged, then machined aluminum caps that reduce the axle dimension to the skewer dimension. These caps provide the final spacing for each hub and require a drop of oil to actually be able to slide on the axle because they are machined to such close tolerances, in fact they fit the way a piston does in a cylinder head. The hubset is available in a Black or Silver anodized finish. The front hub has a 57mm hub flange diameter, with flanges spaced 77mm apart. The front spoke holes have a 46.5mm perimeter circle diameter. The rear hub has a 69.5mm hub flange diameter, with the flanges spaced 55mm apart. The rear spoke holes have a 59mm center circle diameter. The front hub weighs 156.5 grams, the rear hub (136mm axle), without cogs, weighs 235.5 grams. These, large (high) flange hubs do not come with skewers and are for use with a freewheel only that must be provided separately. Lastly, the hubset does not come with the grease gun or grease, these are available separately in our lubricants section. Be sure to include the rear axle width desired, either 126mm, 131mm or 136mm, hole patterns 28 hole, 32 hole or 36 hole, (they can be split patterns front and rear), and color, either Black, Grey or Silver. Front only (BK-S) $ Price in Catalog
WTB Paradigm 8-Speed Rear Hub
WTB PARADIGM HUBSET |
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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... |
