When to change the seatpost ?

When to change the seatpost ?
How many kilometer, years and terrible roads
is time to change my aluminum road seatpost
that came with my Giant Ocr1 2002

Denis

On Thu, 25 Sep 2008 15:19:33 -0700 (PDT), wrote:

When to change the seatpost ?
How many kilometer, years and terrible roads
is time to change my aluminum road seatpost
that came with my Giant Ocr1 2002

Denis

Aluminum has no fatigue limit and should be replaced every 4-6 months. For
steel every 1 to 2 years and for carbon fiber seatposts every 4-6 years.

"agcou" wrote in message
...
| On Thu, 25 Sep 2008 15:19:33 -0700 (PDT), wrote:
|
| When to change the seatpost ?
| How many kilometer, years and terrible roads
| is time to change my aluminum road seatpost
| that came with my Giant Ocr1 2002
|
| Denis
|
| Aluminum has no fatigue limit and should be replaced every 4-6 months.
For
| steel every 1 to 2 years and for carbon fiber seatposts every 4-6 years.
I was not aware that seatpost where consumables
and for a frame of aluminum how many weeks do you suggest
Denis

On Sep 26, 6:19 am, wrote:
When to change the seatpost ?
How many kilometer, years and terrible roads
is time to change my aluminum road seatpost
that came with my Giant Ocr1 2002


When it fails or develops cracks. You may also find that the branding
of the post leaves you depressed and upgrading to a name brand that is
prominently silkscreened on the side my give you a psychological
advantage. Your personal mass is also a variable.

Denisd53 wrote:
"agcou" wrote in message
...
| On Thu, 25 Sep 2008 15:19:33 -0700 (PDT), wrote:
|
| When to change the seatpost ?
| How many kilometer, years and terrible roads
| is time to change my aluminum road seatpost
| that came with my Giant Ocr1 2002
|
| Denis
|
| Aluminum has no fatigue limit and should be replaced every 4-6 months.
For
| steel every 1 to 2 years and for carbon fiber seatposts every 4-6 years.
I was not aware that seatpost where consumables
and for a frame of aluminum how many weeks do you suggest

Your team should supply you with a new bicycle for every major race.

--
Tom Sherman - Holstein-Friesland Bovinia
“the bacteria people tuned in-as to bioengineering at the correct wave
Point” - gene daniels

On 9/25/2008 5:04 PM landotter wrote:

On Sep 26, 6:19 am, wrote:
When to change the seatpost ?
How many kilometer, years and terrible roads
is time to change my aluminum road seatpost
that came with my Giant Ocr1 2002


When it fails or develops cracks. You may also find that the branding
of the post leaves you depressed and upgrading to a name brand that is
prominently silkscreened on the side my give you a psychological
advantage. Your personal mass is also a variable.

This is all too vague. Couldn't the OP get the post sent out for fatigue
analysis?

--
Mike "Rocket J Squirrel"

Mike "Rocket J Squirrel" Elliot wrote:
On 9/25/2008 5:04 PM landotter wrote:

On Sep 26, 6:19 am, wrote:
When to change the seatpost ?
How many kilometer, years and terrible roads
is time to change my aluminum road seatpost
that came with my Giant Ocr1 2002


When it fails or develops cracks. You may also find that the branding
of the post leaves you depressed and upgrading to a name brand that is
prominently silkscreened on the side my give you a psychological
advantage. Your personal mass is also a variable.

This is all too vague. Couldn't the OP get the post sent out for fatigue
analysis?

As a minimum, the rider should do a daily dye penetrant inspection on
the seat post, with weekly radiographic inspection.

--
Tom Sherman - Holstein-Friesland Bovinia
“the bacteria people tuned in-as to bioengineering at the correct wave
Point” - gene daniels

Seatposts have virtually infinite lifespans - no need to replace
unless you want something different for weight, looks, or setback for
a different position. Otherwise, just keep riding it.

Lou D'Amelio

"agcou" wrote: Aluminum has no fatigue limit and should be replaced every
4-6 months. For
steel every 1 to 2 years and for carbon fiber seatposts every 4-6 years.
^^^^^^^^^^^^^^^^^^^^^^
Does this schedule apply to bikes that are not ridden? I imagine that BLS's
could same a ton of money if they didn't install seatposts until the bikes
are sold. ;-)

On Sep 25, 6:30*pm, Tom Sherman
wrote:
Mike "Rocket J Squirrel" Elliot wrote:



On 9/25/2008 5:04 PM landotter wrote:

On Sep 26, 6:19 am, wrote:
When to change the seatpost ?
How many kilometer, years and terrible roads
is time to change my aluminum road seatpost
that came with my Giant Ocr1 2002

When it fails or develops cracks. You may also find that the branding
of the post leaves you depressed and upgrading to a name brand that is
prominently silkscreened on the side my give you a psychological
advantage. Your personal mass is also a variable.

This is all too vague. Couldn't the OP get the post sent out for fatigue
analysis?

As a minimum, the rider should do a daily dye penetrant inspection on
the seat post, with weekly radiographic inspection.

I got a great Chinese x-ray machine from Harbor Freight that I use
just for that. And with all the radiation spillage, I don't have to
shave my legs anymore -- or face, or cut my hair.

BTW, hasn't anyone ever broken a seatpost -- maybe a CF seatpost? I
broke the bolts on a 70's Weyless and a POS Avocet seatpost, but I
have never bent or broken an actual post.-- Jay Beattie.