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Old 03-19-09, 10:15 PM   #1
lancer1558
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Fuji Aluminum Frames

Fuji Newest now has Fuji Altair 1 aluminum fames. I believe that Fuji Newest use to have Fuji Altair 2 aluminum frames. What is the difference between Fuji Altair 1 aluminum and Fuji Altair 2 aluminum frames and how much difference does it make in the frames?
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Old 03-20-09, 09:49 AM   #2
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These are Marketing names for whatever Al alloy Fuji happens to use. As far as the rider/consumer is concerned, they will be indistinguishable unless the geometry or tubing thickness has changed.
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Old 03-20-09, 10:09 AM   #3
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The Roubaix frame (traditional style frame with horizontal top tube) is "Fuji Altair 2 custom butted aluminum with PowerDiamond down tube, Integrated head tube... Fuji carbon seat stays, Fuji Altair 2 aluminum chain stays,", and the Newest is "Fuji Altair 1 Compact aluminum with traditional round down tube... Fuji Altair 1 aluminum curved seat stay w/ rack mount, "

Now... is "Altair 1" the name of the frame or the kind of tubing? I would think that if the Altair 1 tubing was custom butted, they would say so.

Did they ever make the Newest (compact frame) with Altair 2 tubing? I don't know. Fuji's site used to have the specs for older bikes, but they redesigned the site a few months ago and since then it's only said "previous model year information coming soon". Could you tell the difference? Hard to say.
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Old 03-20-09, 10:14 AM   #4
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From the 2008 catalog on the site:

Fuji utilizes three different aluminum alloys. A6 is our revolutionary quaternary phase alloy and contains magnesium, silicon, copper and other proprietary elements. It is up to 35% stronger than other, more conventional aluminum materials used in bicycle frame construction. This particular combination of elements, combined with a unique heat treatment process, actually improves weld zone strength by 30% and allows for thinner walled tubes – and therefore, a super lightweight frame - without sacrificing strength and durability.

Altair 2 and Altair 1 alloys both start with the finest grade aluminum, which is then drawn and shaped to Fuji’s specifications. Altair 2 differs slightly in that tubes made of this material are custom butted – a more intensive process where wall thickness, or gauge, is manipulated to save weight in some areas of the tube without sacrificing strength.
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Old 03-20-09, 04:46 PM   #5
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And I'm betting that their exciting and revolutionary alloys are really just existing numbered Al alloys purchased on the open market.
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Old 03-21-09, 07:04 PM   #6
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Thanks for the information.
Gary
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Old 03-21-09, 07:19 PM   #7
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And I'm betting that their exciting and revolutionary alloys are really just existing numbered Al alloys purchased on the open market.
That's where my money is too. There isn't a bicycle maker anywhere in the world big enough to have a proprietary alloy made just for them.
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Old 03-22-09, 09:34 AM   #8
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Fuji has always done that. Their steel frames were made with Val Lite proprietary tubing. It's just marketing.
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