Carbon seatpost cracked straight off at 5 Nm

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Comments

  • imposter2.0
    imposter2.0 Posts: 12,028
    SloppySchleckonds wrote:
    Imposter wrote:

    Saddle setback should be set in relation to the BB - I think you've been told that before. You clearly don't what you're doing, so I would seek professional help.

    For his bike set up or mental health?

    I was deliberately un-specific.. ;)
  • antsmithmk
    antsmithmk Posts: 717
    Karlos69 wrote:
    Not heard of Aliexpress before, but some of the reviews are not very favourable:

    " Worthless buyer protection, Bogus goods, worse then burning your money"

    "Complete Scam Artists! Do Not Purchase ANYTHING from Aliexpress no matter what."

    "A dishonest Company conning the public taking no responsibility"

    "FRAUD!! SCAM!! NO REFUND!! NO PRODUCT COMES!! CONARTISTS!!"

    "Riddled with fakes, appalling customer service."

    I bought some some Ritchley gear from Aliexpress. .. It either broke or I had to bin it as I was scared it was going to break. Buy cheap, buy twice...
  • jameses
    jameses Posts: 653
    Curious as to why you put flat bars on your road bike?
  • chris_bass
    chris_bass Posts: 4,913
    JamesEs wrote:
    Curious as to why you put flat bars on your road bike?

    Probably because he had a spare seat post knocking about so he thought he'd use it as flat bars, seems like something he might do!
    www.conjunctivitis.com - a site for sore eyes
  • ai_1
    ai_1 Posts: 3,060
    I'm finding it hard to believe this guy isn't just trying to wind us up.....and yet I think he may be serious!

    I'm alternating between feeling smug and superior and feeling horribly depressed that we live in a world where someone talking this much nonsense is able to go through life maintaining the self confidence to tell tell the rest of us we don't get it.
  • Pross
    Pross Posts: 43,468
    JamesEs wrote:
    Curious as to why you put flat bars on your road bike?

    Now for a normal person the only real reason I can think is to be more upright and comfortable at the expense of being less areodynamic but as he seems to think that he still needs to have the same saddle to bar reach I really can't see any reason why. I'm convinced he's on a wind up, it's the only possible explanation.
  • darkhairedlord
    darkhairedlord Posts: 7,180
    Pross wrote:
    JamesEs wrote:
    Curious as to why you put flat bars on your road bike?

    Now for a normal person the only real reason I can think is to be more upright and comfortable at the expense of being less areodynamic but as he seems to think that he still needs to have the same saddle to bar reach I really can't see any reason why. I'm convinced he's on a wind up, it's the only possible explanation.

    ah, you think he's pretending to be an idiot..
  • earth
    earth Posts: 934
    Has the OP considered that the 'fake' seatpost that he bought was not simply a knock-off of another brand that had no R&D, pre or post production testing? But it in fact was a post made for a known brand that actually failed their testing and was badged up as another brand and sold off cheap.

    You mentioned on page three you got an alloy one for £9 that had Truvativ stamped on it. That just means it failed QC but they had already stamped it. Other factories would make an unbranded post to spec, test it and if it passes badge it up, if it fails badge it up as a Bolex and sell it cheap. Or what else - throw the failed ones in a skip?

    The semiconductor industry does this with chips. ATI make a quad core GPU. In post-production testing one of the cores does not work so they use the driver software to turn another off and they sell it as the cheaper dual core version.


    So you are not just buying a post that might not be up to scratch - it positively failed.
  • navrig2
    navrig2 Posts: 1,851
    earth wrote:
    Has the OP considered that the 'fake' seatpost that he bought was not simply a knock-off of another brand that had no R&D, pre or post production testing? But it in fact was a post made for a known brand that actually failed their testing and was badged up as another brand and sold off cheap.

    You mentioned on page three you got an alloy one for £9 that had Truvativ stamped on it. That just means it failed QC but they had already stamped it. Other factories would make an unbranded post to spec, test it and if it passes badge it up, if it fails badge it up as a Bolex and sell it cheap. Or what else - throw the failed ones in a skip?

    The semiconductor industry does this with chips. ATI make a quad core GPU. In post-production testing one of the cores does not work so they use the driver software to turn another off and they sell it as the cheaper dual core version.


    So you are not just buying a post that might not be up to scratch - it positively failed.

    I seriously doubt this. Any brand with reputation to protect cannot risk putting sub-standrad products into the market and getting caught. They would sink like a stone. That's without the risk of being sued for selling something dangerous and which could cause damage to someone.

    You're living in Victorian England.....

    earth wrote:
    Or what else - throw the failed ones in a skip?

    Depneds on the quality system and the test. If it is a destructive test then yes it will go in the skip. Their QC system will be based upon minimising the number of fails but will have an acceptable level of fails according to the product and how it is to be used.
    earth wrote:
    The semiconductor industry does this with chips. ATI make a quad core GPU. In post-production testing one of the cores does not work so they use the driver software to turn another off and they sell it as the cheaper dual core version.

    This I can believe because in its dowgraded state the failed chip will still function safely and to an acceptable standard.

    You cannot simply do that with something performing a structural function unless there are varying performance expctations of that product and you can test it without destroying or damaging it. I am not aware that seat posts are graded by rider weight etc.
  • earth
    earth Posts: 934
    Navrig2 wrote:
    I seriously doubt this. Any brand with reputation to protect cannot risk putting sub-standrad products into the market and getting caught. They would sink like a stone. That's without the risk of being sued for selling something dangerous and which could cause damage to someone.

    You're living in Victorian England.....

    It's not the brand that will be in question it's the factory.
  • navrig2
    navrig2 Posts: 1,851
    earth wrote:
    Navrig2 wrote:
    I seriously doubt this. Any brand with reputation to protect cannot risk putting sub-standrad products into the market and getting caught. They would sink like a stone. That's without the risk of being sued for selling something dangerous and which could cause damage to someone.

    You're living in Victorian England.....

    It's not the brand that will be in question it's the factory.
    earth wrote:
    But it in fact was a post made for a known brand that actually failed their testing and was badged up as another brand and sold off cheap.

    So what you are saying is that a branded name like, say, Bontrager has a supplier manufactur seatposts to the Bontrager specification but if any fail testing (presumably NDT) then Bontrager is happy to have the supplier re-brand it as, say, Bintrager and sell it as fit for purpose.

    Hmmmm! :roll:
  • earth
    earth Posts: 934
    Bontrager buy seatposts from the factory as long as they meet their criteria. The rest are the factories concern. Do you think Waitrose care that the runner beans that are not straight enough for them get sold through Sainsburys?
  • imposter2.0
    imposter2.0 Posts: 12,028
    earth wrote:
    Bontrager buy seatposts from the factory as long as they meet their criteria. The rest are the factories concern. Do you think Waitrose care that the runner beans that are not straight enough for them get sold through Sainsburys?

    Does the word 'exclusivity' mean anything to you? Comparing seatposts to vegetables is absurd.
  • jameses
    jameses Posts: 653
    Pross wrote:
    JamesEs wrote:
    Curious as to why you put flat bars on your road bike?

    Now for a normal person the only real reason I can think is to be more upright and comfortable at the expense of being less areodynamic but as he seems to think that he still needs to have the same saddle to bar reach I really can't see any reason why. I'm convinced he's on a wind up, it's the only possible explanation.

    My thoughts exactly!
  • pinno
    pinno Posts: 52,377
    edited November 2014
    We do have a skewed idea of QC in the West.

    IBM sent out a tender for x thousand chips for a motherboard that they wanted to put into production in 1997, specifying no less than plus or minus 10 defective chips per 5000. I say 'chips' as a loose term for a component. A Japanese company got the contract and with delivery of the the first order there was a note and a packet. The note stated that they had wrapped the defective chips in the parcel so that they would not get mixed up with the good one's.
    seanoconn - gruagach craic!
  • mugensi
    mugensi Posts: 559
    Karlos69 wrote:
    Not heard of Aliexpress before, but some of the reviews are not very favourable:

    " Worthless buyer protection, Bogus goods, worse then burning your money"

    "Complete Scam Artists! Do Not Purchase ANYTHING from Aliexpress no matter what."

    "A dishonest Company conning the public taking no responsibility"

    "FRAUD!! SCAM!! NO REFUND!! NO PRODUCT COMES!! CONARTISTS!!"

    "Riddled with fakes, appalling customer service."

    You do realise that Aliexpress is the Taiwan/China version of eBay. Its not just one seller, its thousands/millions of sellers! Aliexpress actually offer a better buyer protection than eBay, when you purchase from any seller, the money is not realeased to the seller until you confirm that you recieved the goods and are satisfied with same (if you do not confirm then the money is automatically released after 60 days (it thinks its 60, it may be shorter))

    I have bought several items from Aliexpress and am more than happy with them, grant it none of the items i bought were significant parts like seat posts or stems but i've bought CF bottle cages, jerseys, bib shorts and phone covers/cases.
  • navrig2
    navrig2 Posts: 1,851
    earth wrote:
    Bontrager buy seatposts from the factory as long as they meet their criteria. The rest are the factories concern. Do you think Waitrose care that the runner beans that are not straight enough for them get sold through Sainsburys?

    If there us the remotest chance that someone can link defective seatposts to Bontrager then Bontrager will care enough to create a contract which forbids their posts being sold under a different brand by their supplier.

    Loved the comparison to vegetables though, it confirmed my thoughts.

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