Aluminum Tube

Would it be a bad thing to build an aluminum motorcycle frame?

I will be starting a project bike within the next month. I have a 1973 rigid shovelhead frame. I want to cut a little weight. So, I was thinking about building an exact replica of the frame I already have, but I was going to use aluminum tubing. I plan on using 1" O.D. .5" I.D. tubing. From an engineers point of view, would the aluminum frame hold up to the weight and stress as well as the steel frame? Or at least hold up just fine?

Aluminum tends to "work harden" from flexing. A frame made from aluminum would have to be super rigid to prevent this. That is something that is pretty difficult to do with tubing.

Secondly, have you done the math? I am not sure you will really be saving that much weight.

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5 1 2 OD x 4 1 2 ID 6061 Aluminum Mechanical tube 8 1 4 L 1 2 wall  T122
5 1 2 OD x 4 1 2 ID 6061 Aluminum Mechanical tube 8 1 4 L 1 2 wall T122
$28.88
Alloy 6063 Aluminum Round Tubing 6 x 750 x 13 1 2 long
Alloy 6063 Aluminum Round Tubing 6 x 750 x 13 1 2 long
$59.00
1 1 2 x 30 Inch Aluminum Oxide Pipe and Tube Sanding Belts 120 Grit 10 PACK
1 1 2 x 30 Inch Aluminum Oxide Pipe and Tube Sanding Belts 120 Grit 10 PACK
$24.99
6061 ALUMINUM TUBE PIPE ROUND 158ODx142IDx12x 00787 Wall 40x36x300MM new
6061 ALUMINUM TUBE PIPE ROUND 158ODx142IDx12x 00787 Wall 40x36x300MM new
$9.99
KS 106 Aluminum Tubing 1 4 x 12 x 014 1 piece
KS 106 Aluminum Tubing 1 4 x 12 x 014 1 piece
$0.99
KS 105 Aluminum Tube 7 32 x 12 x 014 1 piece
KS 105 Aluminum Tube 7 32 x 12 x 014 1 piece
$0.99
3 3 4 OD x 2 3 4 ID 6061 Aluminum Mechanical tube 10 1 4 L 1 2 wall  T205
3 3 4 OD x 2 3 4 ID 6061 Aluminum Mechanical tube 10 1 4 L 1 2 wall T205
$17.50
ALUMINUM ROUND TUBING 1 1 8 x 72 x 065 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 1 8 x 72 x 065 SEAMLESS DRAWN 6061
$33.00
ALUMINUM ROUND TUBING 1 1 8 x 72 x 035 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 1 8 x 72 x 035 SEAMLESS DRAWN 6061
$23.00
ALUMINUM ROUND TUBING 1 1 8 x 72 x 049 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 1 8 x 72 x 049 SEAMLESS DRAWN 6061
$23.00
ALUMINUM ROUND TUBING 1 1 8 x 72 x 058 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 1 8 x 72 x 058 SEAMLESS DRAWN 6061
$28.00
ALUMINUM ROUND TUBING 1 1 4 x 72 x 035 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 1 4 x 72 x 035 SEAMLESS DRAWN 6061
$24.00
ALUMINUM ROUND TUBING 1 1 4 x 72 x 049 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 1 4 x 72 x 049 SEAMLESS DRAWN 6061
$27.00
ALUMINUM ROUND TUBING 1 1 4 x 72 x 058 SEAMLESS DRAWN 6061u
ALUMINUM ROUND TUBING 1 1 4 x 72 x 058 SEAMLESS DRAWN 6061u
$30.00
ALUMINUM ROUND TUBING 1 1 4 x 72 x 065 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 1 4 x 72 x 065 SEAMLESS DRAWN 6061
$32.00
ALUMINUM ROUND TUBING 1 1 4 x 72 x 083 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 1 4 x 72 x 083 SEAMLESS DRAWN 6061
$42.00
ALUMINUM ROUND TUBING 1 1 4 x 72 x 095 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 1 4 x 72 x 095 SEAMLESS DRAWN 6061
$46.00
ALUMINUM ROUND TUBING 1 3 8 x 72 x 058 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 3 8 x 72 x 058 SEAMLESS DRAWN 6061
$37.00
ALUMINUM ROUND TUBING 1 3 8 x 72 x 125 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 3 8 x 72 x 125 SEAMLESS DRAWN 6061
$64.00
ALUMINUM ROUND TUBING 2 x 72 x 065 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 2 x 72 x 065 SEAMLESS DRAWN 6061
$36.00
ALUMINUM ROUND TUBING 2 x 72 x 058 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 2 x 72 x 058 SEAMLESS DRAWN 6061
$33.50
ALUMINUM ROUND TUBING 2 x 72 x 028 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 2 x 72 x 028 SEAMLESS DRAWN 6061
$28.50
ALUMINUM ROUND TUBING 2 x 72 x 049 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 2 x 72 x 049 SEAMLESS DRAWN 6061
$32.58
Aluminum Architectural Round Tube 062 x 15 x 96 in 6063 UAAC 2pcs
Aluminum Architectural Round Tube 062 x 15 x 96 in 6063 UAAC 2pcs
$49.60
ALUMINUM ROUND TUBING 2 1 2 x 72 x 049 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 2 1 2 x 72 x 049 SEAMLESS DRAWN 6061
$39.50
ALUMINUM ROUND TUBING 2 1 2 x 72 x 065 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 2 1 2 x 72 x 065 SEAMLESS DRAWN 6061
$49.00
ALUMINUM ROUND TUBING 1 1 2 x 72 x 035 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 1 2 x 72 x 035 SEAMLESS DRAWN 6061
$20.00
ALUMINUM ROUND TUBING 1 1 2 x 72 x 049 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 1 2 x 72 x 049 SEAMLESS DRAWN 6061
$39.00
ALUMINUM ROUND TUBING 1 1 2 x 72 x 058 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 1 2 x 72 x 058 SEAMLESS DRAWN 6061
$51.00
ALUMINUM ROUND TUBING 1 1 2 x 72 x 065 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 1 2 x 72 x 065 SEAMLESS DRAWN 6061
$45.00
ALUMINUM ROUND TUBING 1 1 2 x 72 x 083 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 1 2 x 72 x 083 SEAMLESS DRAWN 6061
$57.00
ALUMINUM ROUND TUBING 1 1 2 x 72 x 125 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 1 2 x 72 x 125 SEAMLESS DRAWN 6061
$84.00
Blue Demon E4043 3 32 x 12 1 Tube Aluminum Covered Arc Welding Electrode
Blue Demon E4043 3 32 x 12 1 Tube Aluminum Covered Arc Welding Electrode
$18.85
ALUMINUM ROUND TUBING 1 5 8 x 058 x 72 SEAMLESS DRAWN 6061
ALUMINUM ROUND TUBING 1 5 8 x 058 x 72 SEAMLESS DRAWN 6061
$34.00
3CCE Self priming Barnes Centrifugal Pump Mounted in Aluminum Tubing Frame
3CCE Self priming Barnes Centrifugal Pump Mounted in Aluminum Tubing Frame
$175.00
Aluminum Architectural Round Tube 062 x 1 x 48 in 6063 UAAC 2pcs
Aluminum Architectural Round Tube 062 x 1 x 48 in 6063 UAAC 2pcs
$10.60
8020 Aluminum Tube Anodized 5040 x 965 N
8020 Aluminum Tube Anodized 5040 x 965 N
$137.05
3 X 1 1 2 X 1 8 Wall Aluminum Tubing 12 long Qty 1  Great Price
3 X 1 1 2 X 1 8 Wall Aluminum Tubing 12 long Qty 1 Great Price
$18.99
3 x schedule 40 x 12 long aluminum round pipe tube 35 od 3068 id
3 x schedule 40 x 12 long aluminum round pipe tube 35 od 3068 id
$18.89

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