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Beware! Front aluminium rim breaks when you brake hard

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Heinz
Posts: 9
(@heinz)
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Joined: 4 years ago

This could have ended really bad. A report to Soco won´t change anything I am afraid. 

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s550v
Posts: 122
(@s550v)
Estimable Member
Joined: 4 years ago

You would think that SSoco would do something if people start reporting cracking rims.  Maybe your wheel was casted with a slight defect? (not seen during Quality control etc) or over time it just weakened?.  Doesn't give me confidence..

I am glad you went to look and glad you aren't injured.

@escubic have you already contacted the dealership? What did they say? 

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supersoco Amsterdam
Posts: 50
(@supersoco-amsterdam)
Trusted Member
Joined: 4 years ago

Excuse me for getting offtopic, but I noticed that the rimsize on the picture is 2.5X17 but on the official site they write in the spec.for the TC 3.0X17 for front and rear. Do they have changed the rimsize for the newer models ?

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escubic
Posts: 74
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(@escubic)
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my friend and me have both 2.15x17 front rim

my Spanish dealer says that they will solder the rim.  Tough guys here on our wild island

 

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supersoco Amsterdam
(@supersoco-amsterdam)
Joined: 4 years ago

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Posts: 50

Hi Escubic, Great that they can repair the rim for you. Hopefully it never happens again but I have still one question and that's what's the productiodate of your TC?  It"s written on that little card you recieve in keybox on the delivery. I 'm so curious.. You will help me a lot with this.Thanks and have save drives.

 

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escubic
Posts: 74
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(@escubic)
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the serial number of my Super Soco TC is ****01237 in the vehicle identificacion number. The production year is encoded there as 2018.

The has been NO impact and NO improper handling. In the German forum I have posted hi resolution pics of the wheel so the rumours that the wheel could have suffered some type of impact or direct force are unfounded. There is no sign of abrasion of material or direct hit. The spoke is slightly bent outwards the spoke center line, a exterior hit would bend it into the other direction.

https://www.elektroroller-forum.de/viewtopic.php?f=64&t=8115&start=10#p117893

The break looks black and rough, according to Wikipedia black fissures in alumium are a sign of chronic overstress https://de.wikipedia.org/wiki/Schwingbruch

What my leading theory is: there might be embedded some kind of hidden defect in one spoke and it broke because of that. What worries me is that also the attached twin-spoke broke because some kind of hidden defect (bubble or impurity) should affect only one part of the spoke twins. As you can see on the hi res pic there is a break also going through the attached spoke.

I have communicated the problem to my German dealer. He will provide a replacement rim. Until the replacement arrives my Spanish workshop will solder the spoke so I can keep using the bike (with caution).

We have another TC, and it is used on the exact same streets, and there is no defect whatsoever.

 

 

 

 

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supersoco Amsterdam
(@supersoco-amsterdam)
Joined: 4 years ago

Trusted Member
Posts: 50

Thank you so much for this clarification, I really thought that there could be differences in production types but it is probebly some wrong specs.on the official Soco site wich meantion the 3.0-17 rims. Really great it will be solved by your dealer under warrenty and I hope that the headoffce will look into this because we all want to ride savely.

 

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