August 12, 2011

Cutting method for steel tube - スティールチューブのカッティング手法

Steel tubing for high-end bikes is usually double butted tubing. That is to make the tube lighter and have a strength and stiffness on both sides. When I design a steel frame, I rather pay attention the thicker parts (not thinner part) on both sides of the tube (main tubes). I never cut off only one side of the tube, but cut both sides to keep double butt. It makes a well-balanced frame. Unless it is kept, the tube doesn't show the maximize ability.
This is an significant matter in steel frame design process.


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