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Old 03-17-2011, 03:08 PM
donald branscom donald branscom is offline
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Join Date: Feb 2006
Location: Tucson,AZ, AZ
Bike Year, Make, Engine: Custom metric chopper
Posts: 2,910
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How I would make a radius tank bottom is to get a section of .065 tubing larger than the backbone to allow a foam pad, and get it rolled to the same radius . Then mark the sides to the depth you want and cut it with a abrasive cut off wheel on your 4 inch hand grinder. Sand the edges.

Wear your face shield.
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