Exhaust down pipes

Hi guys, can anyone help, I have the front section of my Honda CB500 1996 down pipes and there looks like there is a flat on the underside of the tubes, i don't think its from road wear as its too deep, can anyone tell me if the section has a flat on the pipes from manufacture.
thanks in advance.
Steve.

Certainly nothing like that on mine. Must say it does look like road wear, the weld seam has also been ground flat.

Hi cheers for that, that leaves me to believe a possible bump on the tubes and flattened off and whats best to do??
I could drill an exploratory hole to see how thick it is in the middle and then possibly cut out damage and weld a piece in or just weld up completely and grind back??

Anyone else have any ideas??

I guess this answers my question, just found these for sale on ebay, cut and weld a piece in i think??

I was going too but I’m selling the bike so prefers to get it like it was originally
Loads of work but for the good

Hahaha someones being a hooligan with your bike!
They're the first part to ground out on the road after the pegs, I'd make a bet and say your bike doesn't have any crash protection either.

No nothing, I’ve decided to cut and patch in now, work ongoing

My '95 bike has a dent in the underside of one downpipe whic doesn't seem to affect the bike at all, if it ain't broke...

Thx, I know what you’re saying, I’ve cut out damage now and in the process of welding s patch in.
Cher
Steve