R
Robin Hubert
Guest
Robin Hubert wrote:
> [email protected] wrote:
>
>> someone writes:
>>
>>
>>>> rolled thread bolts are generally not the same steel at that used
>>>> for any responsible cut thread bolt - it's cheaper/weaker material
>>>> because the better properties of the rolled thread allow it to be
>>>> used. /so/ cutting a thread into a rolled thread bolt is bad not
>>>> only because of the cut thread, it's bad because the material is
>>>> not appropriate for it! it this really so hard to understand?
>>
>>
>>
>>> I am shocked, shocked to hear that bicycle part designers use weaker
>>> materials that are deemed sufficient, when stronger materials are
>>> available! Is this bad design??? Surely a calculation of the
>>> fatigue properties and loading of these bolts would reveal the
>>> danger of this practice.
>>
>>
>>
>> Get some shock therapy. You may also be surprised that the low paying
>> bicycle industry does not have many competent engineers and that much
>> of the equipment is designed by what might best be called "hobbyists"
>> dabbling in engineering.
>>
>>
>>> This would have been a good argument if you had brought it up in
>>> your first post to this thread. But as the 20th post, after several
>>> other smokescreens, and refusals to post numbers or references, it
>>> looks like moving the goalposts. It's sophistry. I'm sure you get
>>> some kind of gratification out of this strategy of argument, and it
>>> gets you attention, but not everybody will play with you ad
>>> infinitum.
>>
>>
>>
>> I think most readers have recognized this, no useful contributions
>> arising from his postings. To me it's a lot of smartass sniping.
>>
>> Jobst Brandt
>
>
> Jobst, I may have missed it but I don't think you've weighed in on this
> brake bolt debate. What is your position on the original question and
> following discussion?
>
> Is a cut-thread (vs rolled) brake bolt reliable? Would periodic
> inspection be sufficient to prevent catastrophic results if not?
>
> For those curious I am test-piloting a Suntour Superbe that I threaded
> for recessed mount as did our OP. As you might've guessed, it's the
> front.
Er, that'd be the rear, actually.
>Only several thousand miles so far.
>
> Robin (your faithful test pilot) Hubert
> [email protected] wrote:
>
>> someone writes:
>>
>>
>>>> rolled thread bolts are generally not the same steel at that used
>>>> for any responsible cut thread bolt - it's cheaper/weaker material
>>>> because the better properties of the rolled thread allow it to be
>>>> used. /so/ cutting a thread into a rolled thread bolt is bad not
>>>> only because of the cut thread, it's bad because the material is
>>>> not appropriate for it! it this really so hard to understand?
>>
>>
>>
>>> I am shocked, shocked to hear that bicycle part designers use weaker
>>> materials that are deemed sufficient, when stronger materials are
>>> available! Is this bad design??? Surely a calculation of the
>>> fatigue properties and loading of these bolts would reveal the
>>> danger of this practice.
>>
>>
>>
>> Get some shock therapy. You may also be surprised that the low paying
>> bicycle industry does not have many competent engineers and that much
>> of the equipment is designed by what might best be called "hobbyists"
>> dabbling in engineering.
>>
>>
>>> This would have been a good argument if you had brought it up in
>>> your first post to this thread. But as the 20th post, after several
>>> other smokescreens, and refusals to post numbers or references, it
>>> looks like moving the goalposts. It's sophistry. I'm sure you get
>>> some kind of gratification out of this strategy of argument, and it
>>> gets you attention, but not everybody will play with you ad
>>> infinitum.
>>
>>
>>
>> I think most readers have recognized this, no useful contributions
>> arising from his postings. To me it's a lot of smartass sniping.
>>
>> Jobst Brandt
>
>
> Jobst, I may have missed it but I don't think you've weighed in on this
> brake bolt debate. What is your position on the original question and
> following discussion?
>
> Is a cut-thread (vs rolled) brake bolt reliable? Would periodic
> inspection be sufficient to prevent catastrophic results if not?
>
> For those curious I am test-piloting a Suntour Superbe that I threaded
> for recessed mount as did our OP. As you might've guessed, it's the
> front.
Er, that'd be the rear, actually.
>Only several thousand miles so far.
>
> Robin (your faithful test pilot) Hubert