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Old 01-06-19, 11:07 AM
Mad bike riding scientist
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Join Date: Nov 2004
Location: Denver, CO
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Bikes: Some silver ones, a red one, an orange one and a few titanium ones

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Originally Posted by MikeyMK View Post
Ally fatigues and cracks. I've cracked two frames, and bought a third and found fractures. All hairline stuff at first.
Steel cracks too. I’ve owned almost equal numbers of aluminum and steel frames (19 aluminum and 16 steel). I’ve broken 2 steel frames and 2 aluminum frames. One of the steel frames broke numerous times. Only one of the aluminum frames broke because of fatigue and that was because the material used...Specialized M2 aluminum/boron composite...was too brittle. Both steel frames broke because of fatigue.

Steel is heavier and can feel springy.
Yes, steel is heavier. No, steel isn’t inherently “springy”. It’s a stiff material. The reason it seems “springy” is because the tubes used for the frame are of small diameter. If steel turbing were of the same diameter as aluminum, it would be so stiff that no one would want to ride it.

As for the original question...aluminum. It’s light, durable and strong enough for the job without excess weight. Of my current 8 bikes, 5 are aluminum. Three are titanium.
Stuart Black
Pokin' around the Poconos A cold ride around Lake Erie
Dinosaurs in Colorado A mountain bike guide to the Purgatory Canyon dinosaur trackway
Solo Without Pie. The search for pie in the Midwest.
Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
Days of Wineless Roads. Bed and Breakfasting along the KATY
Twisting Down the Alley. Misadventures in tornado alley.
An Good Ol' Fashion Appalachian Butt Whoopin'.

Last edited by cyccommute; 01-06-19 at 11:10 AM.
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