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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Bottom Brackets Brake Systems
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SRP Hub Accessories
SHIMANO BOLT - SRP TI BOLTSRP FREEHUB BODY FIXING BOLTShimano's only patent on the freehub cassette system, isn't on the shape of the cut-out of the interior of the cogs, it's on how the freehub body, (the ratcheting carrier that the cogs slide on), is fastened to the hub shell. Shimano's uses a steel bolt built on a steel tube, that has a 14mm by 1mm thread pitch. The inner diameter of the bolt is 10.5mm which permits the 10mm diameter rear axle to pass through it. The Shimano steel bolt has a 10mm hex fitting in its interior, so that with the axle removed, a 10mm hex wrench turned counter-clockwise (anti-clockwise) will remove it. The original weighs 13.5 grams. SRP makes an exact replacement of Ti 6Al-4V rod through a bit of complex machining that weighs just 7.5 grams. This will replace the bolt used in the LX, DX, XT, and XTR. It will also replace the bolt used in the RX100, 105SC, and Ultegra freehubs. It will not work in the Dura-Ace hubs because they are of a very early design, and we have said that we believe Shimano has these scheduled for re- engineering in the 1996 model year when this bolt may be compatible. Remember there are several aftermarket hub makers that also use Shimano freehub bodies freely with the Shimano bolt, read about the hub you have to see if this will be useful. $ Price in Catalog
SRP TITANIUM REPLACEMENT AXLESSRP makes hollow Titanium axles as replacements for the steel ones that come commonly in production Shimano or Suntour hubs. The axle used in all Shimano & Suntour front hubs is hollow, with a 9mm outer diameter and a 5.3mm inner diameter with a 100mm length when measured from the outer edge of the lock nut to outer edge of lock nut, (over lock nut dimension). The rear axle used in most Road hubs is hollow, has a 130mm over lock nut dimension, with a 10mm outer diameter and a 5.3mm inner diameter. The axle used in new Mountain hubs at the moment has a 135mm over lock nut dimension, with a 10mm outer diameter and a 5.3 mm inner diameter. The SRP Ti version is an exact replacement for these, with threads cold rolled into the axle. 9 x 1 x 100mm Front axle (14.3 grams) $ Price in Catalog
SRP CAMPY TITANIUM REPLACEMENT AXLESTi hub axles is something they have pursued beyond the common, and they make Ti replacements for the Campagnolo hubs. The Campy front axle replaces the same one used in the Campy Chorus, Record and Record OR, having a 9mm by 1mm by 100mm O.L.D. The Campy Freehub rear version will replace the axle used in the Campy Chorus, Record, Record OR or the aluminum body Super Record. 9 x 1 x 100mm Campy front axle $ 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... |
