PVD IS Head Tube

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Revision as of 16:05, 31 July 2007 by Pvd (talk | contribs) (Stock)
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Most framebuilders that work with steel have ignored the newer integrated headset design. I belive that it is the future. I decided to make up some very special head tubes for my bike projects.

Design

IS-Head-Tube.gif

Stock

The 4130 stock required for this part is very rare. 1.750 OD x .250 Wall.

I ended up ordering the stock from Factory Steel and Metal Supply Co. out of Detroit, MI. Alloy&SupDesc=Tube&pGrade=4130 EMJ Metals out of Freemont would be another good choice.

The price was $18.70 per foot with a $20 cut charge from 20 foot lengths. A six foot section should be enough to get 14 x 4.5" tubes.

Machining

A bushing was required to hold the part during machining.

Finishing