"Tony Raven" <
[email protected]> wrote in message
news:
[email protected]...
> Simon Bennett wrote:
> > MartinM wrote:
> >
> >>There seems to be an aversion to aluminium in AUK; most of the top end
> >>bespoke bikes are steel.
> >
> >
> > I think it's because of the availability of steel frames with a range of
> > braze-ons. Not so common on alu frames.
> >
> >
>
> In the only test I know on frame fatigue, which comes with Sheldon's
> moniker of approval, ali frames faired far better than steel.
> http://www.sheldonbrown.com/rinard/EFBe/frame_fatigue_test.htm
It's a shame they only tested one sample of each model on there.
If they tested at least two of each, that would have given a better
indication as to whether those results were typical or not. Or how
much variabilty could be expected.
I'm sure I remember reading somewhere, that there can be distinct
variation between the strength of individual frames depending on
the skill and experience of the particular brazer, welder, robot(?)
at the time. And that some materials and construction techniques
lend themselves to totally consistent results more than do others.
Also some of those results seem to be dependent on design faults,
cracks emanating from poorly situated brazed-on bosses etc, rather
than being inherent in the material itself.
michael adams
....
>
> --
> Tony
>
> "I did make a mistake once - I thought I'd made a mistake but I hadn't"
> Anon
