ERW OR DOM

[jj256]

Is ERW suitable for motorcycle or motorized bike building like DOM tubing is?

 

[jj256]

So what diameter and wall thickness would be suitable, I was think 1 1/8x11 gauge.

 

[jj256]

Is it possible to use square tubing on a high powered motorized bike or motorcycle

 

[Ratfink1962]

Also, because of the weld seam in ERW tubing, DOM can be easier to bend.

Agree with everything you said except this...

Speaking from experience building a sand rail frame using 1.5" erw and dom... I found that when using a JD2 bender (manual power) that the erw was a LOT easier to bend. I cant remember for sure but I believe the wall thickness was the same. I just remember that the dom was a BEAR to bend compared to the erw.

I was also told the dom was used for hydraulic cylinders and shock bodies since the i.d was completely smooth.


bottom line... dom is WAY overkill for a regular bicycle frame, I think its also overkill for a motorized bicycle frame, would be good to use for a Harley frame I would suppose.