How to fix? (snapped crank bolt)

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gmurad said:
A Three Stooges reference! I had to look that up but I can still appreciate your humour. :giggle:
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My 93 year old dad says it all the time - it may well precede Moe Larry & Curly, wise guy!
Nyuk nyuk nyuk
 
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JimBo said:
My 93 year old dad says it all the time - it may well precede Moe Larry & Curly, wise guy!
Nyuk nyuk nyuk
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Why I oughta...

4oGoEnl.gif
 
gmurad said:
The negative reaction to my title is likely representative of the demographics that is attracted to e-mtb (at least for now while prices are so high) which seems to be predominantly older males from developed countries (e.g.: England).
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Not necessarily a negative reaction, but I am an older-ish male :-)
Would you consider the U.S. a developed country...or we on the young side?
 
Is it possible that maybe a Giant dealer would have cranks and or bolts for this as they also run Praxis cranks?

I thought the title was funny, reminded me of a Yugoslav fella i worked with once, everything ended in fucking, didn't matter what he was saying. There is bigger stuff to be concerned with in life, just saying.
 
The "F" word can be used for many different parts of speech. When I was an apprentice in a heavy gear fitting workshop (gearboxes the size of Chieftain tanks and bigger!), there was a driller that taught me a thing or two.
He was attempting to drill a 3" diameter hole in a large steel casting. There was only one of these high value components made for a very big job that was already overdue. Important people were stood around watching. Suddenly, the drill snapped, leaving half of it jammed in the casting. What the driller shouted next could be heard all over the workshop.
"F***!, t' F***ing F***ers F***ed! :eek:

For those not from the North of England, the t' stands for the word "the" and it is pronounced like the "t" at the end of the word "but". To the uninitiated it sounded like he only spoke 4 words all beginning with F, yet a complete sentence with all the important parts of speech. And very eloquent too, as we all knew exactly how he felt. :ROFLMAO:
 
gmurad said:
Hey guys,

I snapped the crank arm bolt on my less than 2 weeks old 2020 Levo :cry:
I opened the motor to check it after the first ride which was very muddy and also took the time to reinforce the power cable.

After closing the motor I used my car tire torque wrench set to 49.5 Nm on the crank bolt. I was applying hulk level strength with a long leverage, no wonder it snapped. I guess my torque wrench is defective because it never clicked :confused:... I thought I wasn't at 50Nm yet. Removing it also required hulk level strength

Now the bolt is spinning freely both ways, not sure what to do, attached a video a picture here:


Anyone has ideas? I don't have much experience with bikes, not sure what's happening here.
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] *Do you know Jesus said it's not what goes into your mouth that defiles a Man. It's what comes out of the mouth : ;)
 
I excused the title on the basis it was possibly someone, for whom English was not their first language. The use of sh*t and f*ck is not necessarily offensive ( unless you are a snowflake, who finds everything in life offensive) and as anglo saxon vernacular has its place, but it is coarse. English is the richest language in the world in terms of adjectives etc, so a shame if they are all ignored just to be replaced with expletives....especially when the only villain at large is a BOLT!!
 
Mikerb said:
I excused the title on the basis it was possibly someone, for whom English was not their first language. The use of sh*t and f*ck is not necessarily offensive ( unless you are a snowflake, who finds everything in life offensive) and as anglo saxon vernacular has its place, but it is coarse. English is the richest language in the world in terms of adjectives etc, so a shame if they are all ignored just to be replaced with expletives....especially when the only villain at large is a BOLT!!
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Considering the Title hasn't been edited due to some comments about it : Speaks Far Louder then the Title itself originally did : Doesn't Respect start with Self? ;)
 
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Result, after removing my cranks on my 2month old Levo I can confirm these cranks are "FT" on the shaft and tight going back on.
My SRAM XO cranks are far easier to remove and re-fit and have about a 50nm torque value
 
Mikerb said:
I excused the title on the basis it was possibly someone, for whom English was not their first language
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You are correct that English is not my first language, it's actually one of the 4 language that I'm fluent in. I have access to a lot of words in my vocabulary and yet I chose these :eek:, but that was part of the joke.

Rick53 said:
Considering the Title hasn't been edited due to some comments about it : Speaks Far Louder then the Title itself originally did : Doesn't Respect start with Self? ;)
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The way I read your message is that my respect and self-worth comes from inside and as such I wouldn't let some negative comments about the title make me change it. Thanks for the compliment.

On the topic of the bolt, if anyone needs it in the future it can be hard to find it as it's a specific bolt for Praxis eCranks M24 BOLT/EXTRACTOR - Praxis Works
 
Sometimes if you leave old thread locker on bolts it can bind and get incorrect torque value as well... maybe better to clean off factory thread locker and apply new before retorquing next time?
 
Why the heck would you need threadlock on an extractor bolt! The thread should be greased not threadlocked. It has a high torque setting and is tightened against a taper.
 
Mikerb said:
Why the heck would you need threadlock on an extractor bolt! The thread should be greased not threadlocked. It has a high torque setting and is tightened against a taper.
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I only mentioned because in the picture he posted it looked like it had blue locktite on it!:)
 
seamarsh said:
I only mentioned because in the picture he posted it looked like it had blue locktite on it!:)
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I was wondering about that myself. It does look like Loctite but not sure if it's just some kind of blue grease instead.
 
Speaking of that, does anyone have recommendations for torque wrenches to work on bikes? Some bolts call for 1 or less Nm and others like this one 50Nm. I guess you need at least 2 torque wrenches to cover all the torque specs on a bike.
 
gmurad said:
Speaking of that, does anyone have recommendations for torque wrenches to work on bikes? Some bolts call for 1 or less Nm and others like this one 50Nm. I guess you need at least 2 torque wrenches to cover all the torque specs on a bike.
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For the lighter bolts you can just go by hand in my opinion. You would need an insane torque wrench for 1nm to be accurate.
 
I can perhaps understand using a threadlock on the outside threaded nut against which the crank bolt presses for self extraction from the shaft. It has only a shallow thread and on some models only secured with a pin spanner so torque is very low. The crank bolt and the splined shaft should be greased however in order to minimise friction when tightening. Otherwise the torque applied will be wrong and getting the crank off will also be difficult.
 
In hindsight, don’t be tempted to remove the crank after one ride!
Is this on a Levo SL?
 
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