Seat post breaks

On Nov 5, 3:27 pm, TimC -
astro.swin.edu.au wrote:
On 2007-11-04, Donga (aka Bruce)
was almost, but not quite, entirely unlike tea:



On Nov 3, 8:22 pm, "Fractal" wrote:
How often do seat posts break, and where? Mine (on a 4 yr old Trek 520)
gave way the other day, snapped off horizontally fairly cleanly near top of
tube, just under the goose neck. Wasnt doing anything very strenuous, just
riding to shops. LBS inspected the break and opined it had been cracked for
a while before going. I thought alumimium would probably just fail all of a
sudden, without a crack. Must admit I did have a prang 2 years ago where
bike did a cart wheel and landed on rear of seat. Demolished the seat but
everything else seemed OK. Now I am worried that something else might go.
The new seat post is much longer than the old, LBS said to cut it off if I
wanted to.

I had a bout of testicular trauma when a Real Design carbon post
failed. The clamp was metal on carbon, both splined - more like Real
Dumb Design. I hit a bump with my weight back on the saddle. The
carbon splines let go and the front of the saddle pivoted up and
smacked me in the nuts. Youch! Needless to say I only had to issue
subtle threats to get a refund.

There's a joke here somewhere about only having one ball left and
hence being able to go faster, but I can't see it.

--
TimC
The Sell Dervers are balanced behind another Sell Derver, and both
have their data protected from Badness by a Dedundant Array of
Inexpensive Risks -- Aquarion in ASR revealing the secrets of RAID

To be sure, I was laughing and crying at the same time.