Snapped spindle

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EckyH

It wasn't me!
Good for entertainment huh?
Someone mentioned a church in nearly every of his posts and seemingly that's the wrong religion there. Therefore a crusade was necessary. It's too bad that the horse of the crusader lost a lot of it's teeth and the crusader moves in circles and always with a huge lament.

Please don't think of Don Quixote now. Don Quixote was some kind of funny.

E.
 

silva

Über Member
Location
Belgium
Your assertions, not mine, are contradictious to each other - and that in a fairly short time.

Nope.

Moving cranks (or in your words: play) on a square taper are signs of incorrect assembly or poor maintenance or both.

E.
You talk, again, to yourself: https://en.wikipedia.org/wiki/Straw_man

I said that the square taper design idea allows to compensate for play, regardless of the latters cause - brands tolerance differences, wear due to movement during tensioning (re)mount, and whatever, that, without the taper shape, would require replacement, instead, just tension the crank up until the play goes, with as max the bottoming out.
No replacement / cost, needed.
As Simple As That!

Years ago, after a left cranks pedal eye broke out, thanks to the square taper, I was able to mount and keep using a crank of another brand.
During the first rides, I stopped to check and noticed that I could tension the crank further.
Until I couldn't anymore. Problem Solved, at no cost.

THAT's what I've said, 'Nuff.
 

silva

Über Member
Location
Belgium
Says the person who rides fixed with most of the gear teeth missing. Hey ho, not died yet !
This is again aside the topic, since you lack arguments on.
I asked here before: explain me how a properly tensioned chain can fall off a fixed gear? Chains are assemblies of steel links, not of rubber knotted together.
Without slack or derailer (=spring allowing for trajectory length differences), How How How, Mister fossyant?

Several thousands people:
https://www.bikeradar.com/news/shimano-crankset-recall
The United States Consumer Product Safety Commission (USCPSC) says the recall applies to cranks sold over an 11-year period, from January 2012 through August 2023, after a reported 4,519 incidents of cranksets separating.
... in the Great Wonderful United States of America alone
... suffered a variety of breaks in the Hollow Technology 2 Thing under their Arse.
It's reported that worldwide almost 3 million of such prone to fail Things are, or were out there.

That's quite some area ground to Talk About Safety, no?
 
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EckyH

It wasn't me!
Beside the fact that "talking to oneself" and "straw man" are completely different things: Either of your accusations is wrong.
I said that the square taper design idea allows to compensate for play, regardless of the latters cause - brands tolerance differences, wear due to movement during tensioning (re)mount, and whatever, that, without the taper shape, would require replacement, instead, just tension the crank up until the play goes, with as max the bottoming out.
This mixes up wear and play.
Years ago, after a left cranks pedal eye broke out, thanks to the square taper, I was able to mount and keep using a crank of another brand.
During the first rides, I stopped to check and noticed that I could tension the crank further.
Until I couldn't anymore. Problem Solved, at no cost.
Somebody paid for that crank. So it didn't cost nothing.
In other words: Your assertion is verifiably false.

E.
 

silva

Über Member
Location
Belgium
So does that make you a cheat? You're using a bike with missing teeth on the chainring/sprocket so it's lighter than a bike with a fully intact chainring/sprocket. Bloody weight weenie ^_^

And given the state of your drivetrain you have the nerve to quote...
Of course I don't cheat, it's about the net total, my sprockets miss a couple grammes, while the default (=always with me) luggage is about 10 kilo. I have:
On my front rack:
- 1 spare new chainring that has passed my tablegrinder, see below.
- 2 spare rear cogs (one as skeleton as current mounted, the other new but with teeth valley's already pre-grinded wider and teeth lower, on my table grinder
- 1 spare chain on length
- 2 spare inner tubes + leak repair stuff.
- spare L+R pedals (had to replace the right along the road last wednesday)
- 2 spare quicklinks for my motorcycle chain
- a zipbag with 2 kilo various small tools (not for bicycle, ex allen keys, other keys, to unmount stuff when needed)
- a bag with bigger tools like wrenches, small handsaw, scissors, screwdrivers, ...

In my panniers behind:
- 2 kilo straps and belts
- 1 kilo corn chips and cookies
- 2 bidons water
- 2 tyre pumps

On top of my rear rack:
- 1 2 kilo back frame (serves as its roof)
- 1 3 kilo back pack (75 litres)
- several raincover sheets.

See my avatar picture, without that red case on it.
Since my new frame, I mounted a front rack, for the heaviest stuff, as counterweight to help avoiding the bike to start a backwards flip when alot weight behind.

And then you arrive on scene, claiming that I would be a weight weenie. :biggrin:
I'm a Work and Cost Weenie.
Of Course, I Do Understand that the Bicycle Sales Business Does Not Like. ;)
 

silva

Über Member
Location
Belgium
Beside the fact that "talking to oneself" and "straw man" are completely different things: Either of your accusations is wrong.

This mixes up wear and play.

Somebody paid for that crank. So it didn't cost nothing.
In other words: Your assertion is verifiably false.

E.
https://en.wikipedia.org/wiki/Straw_man
You are the DJ, not me, play is a consequence of wear, of tolerance differences, THAT I said.
It was a crank from another square taper set, that I had replaced to change the bikes original dealer chosen BCD, needed to find a 1/8" chainring for it.
Instead of binning it, I decided to keep it, and bingo I could reuse it.
I said I Solved the Problem at No Cost.
I did NOT say that the crank costed nothing.
Again a https://en.wikipedia.org/wiki/Straw_man

That's about all you so far did here in this thread, Mister EckyH: talking to yourself.
 

EckyH

It wasn't me!
I said I Solved the Problem at No Cost.
I did NOT say that the crank costed nothing.
"No cost" per definition is equivalent to "cost nothing".
So we see a new record: A contradiction in two consecutive sentences. 👏
That's about all you so far did here in this thread, Mister EckyH: talking to yourself.
It would be very kind if you could stop trying to insult other people with such easy falsifiable assertions.

E.
 
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fossyant

Ride It Like You Stole It!
Location
South Manchester
This is again aside the topic, since you lack arguments on.
I asked here before: explain me how a properly tensioned chain can fall off a fixed gear? Chains are assemblies of steel links, not of rubber knotted together.
Without slack or derailer (=spring allowing for trajectory length differences), How How How, Mister fossyant?

Several thousands people:
https://www.bikeradar.com/news/shimano-crankset-recall

... in the Great Wonderful United States of America alone
... suffered a variety of breaks in the Hollow Technology 2 Thing under their Arse.
It's reported that worldwide almost 3 million of such prone to fail Things are, or were out there.

That's quite some area ground to Talk About Safety, no?

Groan.
 

classic33

Leg End Member
Zola ran barefoot because that was how she had run in South Africa due to being too poor to afford running shoes.
She was used to running barefoot due to running on grass tracks in her early days.

The running style is different to that of a person running in footware.
Barefoot the front half of the foot makes contact first.
With running shoes/footwear being worn, heel strike is more common, with the rear of the foot hitting the ground first.
 

silva

Über Member
Location
Belgium
"No cost" per definition is equivalent to "cost nothing".
So we see a new record: A contradiction in two consecutive sentences. 👏

It would be very kind if you could stop trying to insult other people with such easy falsifiable assertions.

E.
My sentence was "Problem Solved at No Cost".
It was NOT:
"Problem"
or
"Solved"
or
"at"
or
"No"
or
"Cost"
or
Any combination of above.

Thanks to the square taper design, I was able to replace the left crank with one from an old set that had become incompatible, even from another brand, that I had decided to not bin yet, and continue riding, without having to Shimano-Spend A Single Buck.

And since I am already talking about Shimano-Spending, let's continue that subject:
https://weightweenies.starbike.com/forum/viewtopic.php?t=176295&start=60
...
Shimano is using, by 2024 standards, and crank load, AND price, a cheap forging technique, glueing parts. That is no longer suitable to drivetrain loads, or BBs so stiff that the cranks take unprecedented loads.
...
Point is, Shimano's alloy would not pass the Auto Light Alloy testing standards. And if you can buy a 10,000 ton pressed Rays rim for 1000-1500$, 18+ lbs, (which could amount to 15-18 DA cranks) and you spend 700-1000$ for a 700 g Dura Ace Hollowtech crank, something does not add up. If Shimano was to retool and adopt proper cold forging techniques, they could make their cranks lighter, stronger, and glue/bond free. They are stuck in the past with 2.8 million and mounting recalls.

https://en.wikipedia.org/wiki/Rays_Wheels
A Rays car rim weights 18 lbs = 18x453,6 = 8165 grammes, and costs $1000-1500 > for $1 you get 8.165-5.44 g.
https://en.wikipedia.org/wiki/Shimano
A Shimano Dura Ace Hollow Technology 2 bicycle crankset weighting 700 grammes costs between $700 and $1000 > for $1 you get 1-0.7 g.

Both products have a Racing branche focus.
Rays for rims for motorized cars in for ex. Formula 1.
Shimano for human-peddled bicycles in for ex. Tour De France.

Shimano's bicycle HollowTech2 crankset price per gram is 7-8 times higher than Rays car rims price per gram.
It's 15 min car-driving from Rays to Shimano.
So I Would Say that 700% Tariff differences do not serve as a Nice Excuse. ;)

Sooo, We have one Race Side that combines:
- 7-8 times more expensive than the other.
- produced and sold 7 years long a product whose design lead to a variety of Great Failures.
In such numbers that they had to recall 3 million units in order to Get Away With It in the Eyes of Angry Customers.
Because these started a @ThanksShimano Visual Tour of Failures to Mock Shimano.
That grew even longer than Shimano's beard, so, after a Denial Decade, Shimano Finally Stumbled over it.
And, US governments Consumer Safety State branche was ALSO forced to Finally "AaaaaLL, DO Something":

1774771096145.jpeg
 
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