Bike Forums

Bike Forums (http://www.bikeforums.net/forum.php)
-   Framebuilders (http://www.bikeforums.net/framebuilders/)
-   -   looking for source for 4130 flat-oval tubing (http://www.bikeforums.net/framebuilders/260506-looking-source-4130-flat-oval-tubing.html)

Chunkstyle2 01-13-07 09:48 AM

looking for source for 4130 flat-oval tubing
 
hi guys --

can anyone tell me whether such a thing exists at flat-oval 4130 tubing (that tubing shape's also known as "rectangular-oval" or "floval")? i know it exists in alum, because bmx company se racing has been using it for decades in their "pk ripper" frames.

i've done a lot of looking for that same stuff in chrome moly, but have come up empty so far.

any ideas?

thanks!

NoReg 01-13-07 01:55 PM

I heard about one company that uses that material in their bikes and makes it in house from round 4130 tubing. I thought it might be possible just to run it through a rolling mill. I want to make a mill, but it's not high on my projects list yet. They are pretty cheap to make if you have access to a lathe.

MATRIX 01-19-07 11:00 AM

Quote:

Originally Posted by Peterpan1
I heard about one company that uses that material in their bikes and makes it in house from round 4130 tubing. I thought it might be possible just to run it through a rolling mill. I want to make a mill, but it's not high on my projects list yet. They are pretty cheap to make if you have access to a lathe.


Right now in BMX Mutiny is useing a similar style tubeing on a new frame they have out. Goto BMX Online Forums and look in the news area. Their is a few pics of the frame. See if thats the tubeing you are after. Or PM me and I'll hunt down the post ofr you.

eviltom 01-29-07 01:22 AM

I think Trek bmx bikes used them on the TR series in the late '90s. They may have made it themselves. I don't know for sure. I think tubing manufacturers will make it for you if your order is big enough.

Greg Fox 02-04-07 07:09 PM

Tom Porter describes a way to ovalize 4130 tubing from round stock on the WISIL site. http://www.wisil.recumbents.com/wisi...rterplans2.htm and http://www.wisil.recumbents.com/wisi...ebuild2005.htm


All times are GMT -6. The time now is 07:34 PM.