tapered tubing

indyfab · Jul 24, 2006

i am building a leafspring front end for my motorcycle and am looking for some tapered tubing the old indian motorcycles had this type of front end and i am trying to replicate one the tube would need to be about 33-36 inches long and taper from 1 3/8" to 1" or somewhere close if you can help i would appreciate it thanks :confused:

Racer Al · Jul 24, 2006

Tapered tubing is usually spun, much like a velocity stack.

A google search for "metal spinning" will probably get you a source.

Silly question, but why not make it from solid?

Gazz · Jul 26, 2006

MAKE IT FROM SOLID!!!?? That would be one heavy duty front end!
I suppose you could make a hollow one if you had the appropriate mandrel and then hot form and weld the sheet stock around it. Grind the welds flush and it should be just fine.

Gazz · Jul 26, 2006

And oh yeah, didn't those chopper builders back in the 70" use some kind of part from a Ford front end to extend springer front ends?

Hawkeye2 · Jul 26, 2006

How tough would it be to take a piece of tubing, cut a wedge out down the length, and weld it back together. May not be a prefect taper but I think it would work.

johnoder · Jul 26, 2006

Get your friendly press brake owner to make you two halves and then get them tigged together nicely.

John

Motomoron · Jul 28, 2006

http://www.thomasnet.com/products/tapered-tubing-88676820-1.html

Thomas Register is always a good statring point.

Paughco manufactures generic chopper stuff including springer and girder front ends. Since they deal with custom fabricators, they may be willing to sell bare tubes.

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