What is this noise? (With video)

[united4ever]

Pretty sure mudguard is not rubbing. What could it be? Been about 10 days. It rides ok but probably could be better.


View: https://twitter.com/Sharrowval2711/status/1705646780967219204


I cycle down canal towpath in all weather.

 

[Spiderweb]

Wheel buckled, tyre rubbing on something, probably the mudguard.

 

[Cycleops]

Wheel doesn't look buckled but it does sound mudguardish and it is skewed over to the left.

 

[Spiderweb]

Wheel doesn't look buckled but it does sound mudguardish and it is skewed over to the left.

Must have a slight buckle, if the tyre rubs once every revolution?

 

[steveindenmark]

It could be a few things but I would check the pannier bolts and I would take the wheel out and put it back in. I think this is brake related. The disc could be bent or is not placed correctly in the pads.

 

[Big John]

Rotor catching? Remove pads and see what it sound like then.

 

[Ajax Bay]

A vote for Team mudguard catching/touching 'cos slight tyre bulge somewhere. Wrong sound for brake.

 

[Cycleops]

Must have a slight buckle, if the tyre rubs once every revolution?

Rim looks true. Could be the tyre though running out but that off centre mudguard needs checking out.

 

[Big John]

That's a pretty obvious sound. I'm gobsmacked the cause can't be seen with the naked eye when the bike is in a workstand. If it's the mudguard surely it can be seen where the tyre is catching it?

 

[Ajax Bay]

Too much effort taking videos and not sufficient diligence finding the point of contact, imho.
My best guess if the tyre walls are sound is the screw attaching the mudguard to the chainstay bridge, especially with 35-622 Marathon Plus which is higher than it is wide. This may be more apparent when riding as opposed to in the stand as with load on the wheel the tyre gets a mm closer. Look at the screw head and see if it's dirty or 'polished'.

 

[Mazz]

I reckon it might be catching here (see pic).
Try rotating the wheel slowly by hand and listen carefully to determine where the noise is coming from.

 

[steveindenmark]

What was the answer?

 

[Domus]

What was the answer?

42

 

[united4ever]

Took it to the bike shop in the end.

A spoke was broken and catching. Didn't even notice

Anyway,he cut the spoke off. Need the bike for the rest of the week and beyond until half term so will take it back in then to replace spoke and a few other non urgent issues. (hopefully no more spokes break in the meantime).

 

[fossyant]

DIY