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Call them

I have never seen anything even vaguely like that in steel. I imagine calling Fly bikes would be step #1 in finding out if you can get some.

FWIW, they look like aluminum to me.

-Walt

PiR products said:
I took this pic from the Flybikes website, and they said "invest casting stays bridge"...

http://www.flybikesbmx.com/frames/products/tierra_info.html

Anyway, is there a way to get this kind of tubes ?
 

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Discussion Starter · #5 ·
I imagine calling Fly bikes would be step #1 in finding out if you can get some.
I really doubt they'll help me. I already contacted them few years ago concerning a new product idea, but they don't consider ideas that don't come from her company. I know their frames are made in Taiwan, so they probably never had this tube in hand, or maybe the prototype...
 

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Why not just turn some on a lathe? Design looks simple enough to copy. Start wit ha solid rod profiling the outside as you wish. One satisfied you could bore a hole down the center if your concerned about weight. Just a thought
 

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Discussion Starter · #7 ·
crux said:
Why not just turn some on a lathe? Design looks simple enough to copy. Start wit ha solid rod profiling the outside as you wish. One satisfied you could bore a hole down the center if your concerned about weight. Just a thought
Yes, but I would like to made a quantity of 50 or more...and I think it's too much time consuming...
 

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customfab said:
The wonderful website for Fly bikes doesn't mention a material spec either.
Fly frames are all 4130 of some kind, although they tend to just be listed as CRMO in the catalogues.

I don't know of any non-racing BMX brands that do alu frames. If you're lucky you'll get a name brand and some butted tubes, but mostly they're all about plain gauge steel.

OT:
Ragleys have cast chain stay bridges this year, can't promise Brant will tell you who's making them but it can't hurt to ask him.
 

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Discussion Starter · #12 ·

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Long Shen is the caster of choice for IC bike parts. If you wanted something like that done, they'd be the people to talk to. They'd sell too, because they're a nice design.

http://www.longshen.com.tw/
 

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Draw the part, submit to emachineshop.com and be done with it. Getting anything cast will be many thousands of dollars.

-Schmitty-
 

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Discussion Starter · #17 · (Edited)
Schmitty said:
Draw the part, submit to emachineshop.com and be done with it. Getting anything cast will be many thousands of dollars.

-Schmitty-
I didn't know this site. The idea behind the site is really good. It's a shame their software is so poor and I talk as a Dassault System (CATIA & SolidWorks) teacher.

Anyway, I made a simulation for 50 pieces and the price is 14 $/bridge and 11 $ for 100 pieces. It's a bit expensive, but could be worst...
 
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