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About the Frames
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Just as strong and looks better than normal machined head tubes, internal head tubes have been around some time and have recently made their way into the bmx community. Maybe it's because the bmx industry didn't want to imitate the mtb. industry, I don't know. The integrated head tubes we offer are a little different than some of the others out there. Ours are machined around the sealed bearing cartridge. The system is fail-proof and is fool-proof to install.
Tubes
Double butted, seamless, fluted tubing and heat treatment Double butted tubing refers to tubes with thinner walls in the middle than at the ends. Butting is simply the best way to make a lighter frame while retaining all of its reliability. The single drawback is of course the costs involved in the butting process. Seamless tubes are done through a process called extrusion. Extrusion is done by squeezing metal in a closed cavity through a tool, known as a die using either a mechanical or hydraulic press. This process makes the tube stronger and will be able to withstand abuse over longer periods of time. Fluted tubing is a process to the tube that will strengthen the tube and be light through the process of extrusion. The tube has notches and varies in wall thickness. Heat treatment strengthens the part by making it more rigid, increasing its wear resistance and/or providing a surface coating for corrosion resistance.
SInce Bottom Brackets has been the big topic of bmx companies for 04/05 we'd like to explain. It's really personal opinion of what's the best and what's no. Spanish is a press in fit bearing that is one of the lightest, smallest bearings (without a cup) for b.b. shells. Another press in fit style but with a bigger o.d. called Mid b.b. The bigger bearings come from the old American style b.b.(without the cups). The bigger bearings offer possibly the strongest of all of the b.b. bearings.
*Most of the problems with all the bottom bracket bearings is caused when you don't keep the spacer between the bearings. Without the spacer the pressure of the spindle bolt will crush the bearing walls against the balls and will cause a blow-out in ANY b.b. bearing.
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