Is there a problem with this C+S set?

i didnt even know what was wrong until dave pointed out the chain was rubbing on the swing arm - i didnt even know what the second picture was...

...and no, just because my c+S is fooked, its not mine!!

[_Stretchie_]

Originally Posted by xXBADGERXx

Nope that is the Nuts on the Sprocket carrier wearing through

I realised after reading LuckyPants' post about the crush rubbers but thought I'd just keep me big mouth shut and hope no one picked me up on it.




You like my new lid by the way??

Originally Posted by _Stretchie_

You like my new lid by the way??

It`s ok in a "Grand Army of the Galactic Empire" kind of way

[flymo]

how the hell would you not notice that while riding, it must have sounded like a machine gun.

looks ok to me.

Afterall, if it does fail....


...just one less curvy in the world

I suppose with chain alignment and all , would that be as far as it would have worn through , or do you reckon it could have gotten far enough to cause a collapse ?

[ethariel]

Nice but it has to be a setup, wear marks are'nt consistent with a clockwise motion and there appears to be no damage to the nuts/bolts, imho anyway.

The nuts and bolts are much harder than the Ally of the Swingarm so would not necessarily show any damage , you can`t actually see the edges of the nut/bolt that is hitting against the Ally anyway , and coming from an engineers viewpoint the wear is consistent with there being small slivers of Ally on the exit part of the bolts path of travel . Look at the picture where you can see the inner part of the swingarm , on the right hand side/lower portion shows a sliver of Ally , there may not have been one on the exit/upper part as the owner may have cleaned it to show off their handywork and the sliver can easily be removed with a caught cloth if worn through fine enough .

There is also a ground down type of Aluminium paste which has gone dark against the sprocket in the first picture , this is typical of Aluminium that has been ground down roughly by another component .

What has probably halted this from being a total disater is the chain tensioner inside the swingarm , with it being made of a Mild Steel variant it has proven to be harder to wear through which has then produced a more polished looking circle in the centre around the tensioner .

[jambo]

Thankfully the swingarm's thicker than the studs and nuts are long.

I've seen a nut work loose on a rear sprocket stud and contact the swingarm, thankfully it was noticed before it got much worse but the damage was similar, but less extensive.

In mythbuster's style I'd call this confirmed

Jambo

[punyXpress]

The rear axle nut looks a little light on torque, too!