Snapped spindle

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roubaixtuesday

self serving virtue signaller
Wouldn't happen with a square taper. Much better protection from water. At least, so I have been told by someone. :evil:

Whilst it causes me physical pain to type it, I do actually agree.

There, I've said it, I think square tapers are longer lived in such a service.
 

silva

Über Member
Location
Belgium
I have found a photo of Silva on his bike. Bet the wheels were made using hammer and chisel.

View attachment 800484

This one is a higher resolution:
file0281-25pct-jpg.jpg
 

silva

Über Member
Location
Belgium
Nah, too expensive.
Why not take out just one chain link? The chain should be elongated enough that the tensioning mechanism can be adjusted to the "start position". Additionally that would save a few grams for no cost at all!

E.
Ofcourse not - the distance between rollers has to stay under the maximum that the worn sprockets provide space for, if I would continue, the "low mountains" (see earlier post) would also be grinded off by the rollers, the sprockets circumference would become a circle, and the drivetrain would cease doing the job, forcing replacement need, that is work and cost, voiding the goal.
 

silva

Über Member
Location
Belgium
Wouldn't happen with a square taper. Much better protection from water. At least, so I have been told by someone. :evil:
As already mentioned - during 30 years of cycling daily 25-60 km, never had a square taper axle/bearing fail.
I had 1 square taper crankset fail, brand "Stronglight", pedals broke out their mounting holes, first left one, replaced the crank with another brand ready at hand, later on right one also, due to too thin (I compared to other cranks) alu around them, which must have been the reason for the brands name giving. :tongue:

Had 1 HollowTech 2 fail, which was replaced by another dealer using allen keys and hammer and chisel.
And its predecessor Octalink 1, water getting into the left cranks mount caused it to loose.
Hollow Technology of the Light Religion cheating to win a sec on a mile to keep up with the cheating rest. :biggrin:

The axle of my replacement frame is Stronglight JP-400
since Shimano ceased its UN-55 model. I didn't like but didn't know and wasn't given other options in time, so it was to do with it.
I had read user reports that some JP-400 models had plastic instead of previously alu cups, which worried me. But the employee of the dealer of my avatar bike assured me the models he had in stock were alu so I decided to give it a try.
The bike went back in use september 2024, so 17 months now. Time will Surely Tell Once Again if Stronglights axle is better than its cranks.
 
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EckyH

It wasn't me!
Ofcourse not - the distance between rollers has to stay under the maximum that the worn sprockets provide space for, if I would continue, the "low mountains" (see earlier post) would also be grinded off by the rollers, the sprockets circumference would become a circle, and the drivetrain would cease doing the job, forcing replacement need, that is work and cost, voiding the goal.
How about deepen the valleys between the mountains with a round file or a grinder? That could squeeze out more time until the valleys begin to overlap.

Edit: Perhaps that approach isn't for everyone, probably not for me as I recently bought a Hollowtech II crank. But it is a second hand purchase, so the evil component industry doesn't get a single cent of that purchase!

E.
 
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silva

Über Member
Location
Belgium
10 minutes max to clean. I do have mudguards and a long front flap. Ohh err ! No hammers or chisels were harmed in the process.
When the left pedal broke out its Stronglight crank, I didn't have a crank puller at that time, and shops were closed until monday.
So I decided to first use a hacksaw to undo the pressfit as much as reachable, then TWO hammers and TWO chisels (180 degrees against eachother to stay "straight") to get it off.
486738-676b808739262dda89bf62e77385a515.jpg

And Bingo, It Worked, later in the afternoon it was Here I Am, On The Road Again!
Nowadays, I FIRST check if I can find hammer and chisels, and THEN if bicycle shops are open. Then I spend the saved money on a whole box of tasty corn chips. ;)
HAMMERS AND CHISELS FOR THE WIN!
 
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silva

Über Member
Location
Belgium
How about deepen the valleys between the mountains with a round file or a grinder? That could squeeze out more time until the valleys begin to overlap.

Edit: Perhaps that approach isn't for everyone, probably not for me as I recently bought a Hollowtech II crank. But it is a second hand purchase, so the evil component industry doesn't get a single cent of that purchase!

E.
You didn't Really follow the story eh Mister EckyH? The valleys aren't allowed to go deeper because then the chain link plates void the mounting bolts of the cog, which they already slightly do. Velosolo's lowest teeth number cog was 16T, they had a 15T but it used special countersunk bolt heads, and sunk boltheads can be a pain in the BEEP to get out, while with protruding heads, one always has the backup of a vice.
What I DID do, month ago, was taking the new Velosolo cog I keep with me on the bike as spare, and round off and down its teeth on a table grinder.
To test later, when any need to replace the rear cog pops up, how much flipping work it saves me from.
 

silva

Über Member
Location
Belgium
BURN THE WITCH
NNOOOOOOOOOOOO I wouldn't recommend that, remember Greenfell Tower, where the Foam Filled Hollow Technology Aluminium facade decorative panels to Achieve a Better Environmental Score, burnt down the entire tower.
250px-Grenfell_Tower_remains.jpg

Hollow Technology Cost Cutting Environmental Friendly Light Religion - it's all to take with a Sea container Salt. We don't Want to read such Story Starting with the Safety of our Fellow Forum Friend EckyH. ;)
So I'd say to EckyH: just throw the HollowTech II crank in the trash bin, there it can do the least harm. ;)
 
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EckyH

It wasn't me!
You didn't Really follow the story eh Mister EckyH?
I can assure you that I read every post in this thread with the duly attention for that specific post.
The valleys aren't allowed to go deeper because then the chain link plates void the mounting bolts of the cog, which they already slightly do.
Excuses...
If the grinder can grind down the teeth on the sprocket then it can grind down bolt heads, too.

E.
 

silva

Über Member
Location
Belgium
I can assure you that I read every post in this thread with the duly attention for that specific post.
Excuses...
If the grinder can grind down the teeth on the sprocket then it can grind down bolt heads, too.
E.
Evidence showed you did not read, or, ignored what you read.
How do mounting bolts come into the picture when one is holding a cog against a table grinder? Those bolts lay nicely spread out in their original position on a piece of cotton next to the bike, as to make sure they go in the same holes on the hub, as to.make sure the flattened sections on the circumference of their heads stay pointed outwards.
Which was ALSO said here, so your reading assurance is not worth a British penny Mister EckyH!
 
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