Rattling noise on bumpy roads .. HELP

[matt.roberts1205]

Hi,

can anyone help… I’ve recently bought a 2022 Cube Attain Race. When I’m on a smooth road the bike is almost silent. When I go onto an older road that’s a bit bumpy I get a loud rattle from the rear wheel. It sounds like the chain is bouncing around and hitting something. The chain doesn’t look too long so I doubt it’s the length. Any other suggestions would be welcome. I’m pretty much a novice when it comes to bikes

thanks in advance

 

[raleighnut]

Internal cables ?

 

[iluvmybike]

It may simply be the chain slapping the rear stay - called 'chain slap -- mine does that on bumpy roads depends on what gear I'm in. Thats why there is usually a chain stay protector on the frame - often they are clear so not obvious to see. There is nothing wrong with the bike it is just a fact of life

 

[matt.roberts1205]

Internal cables ?

I think it may actually be the cables. I bounced the bike and discovered the noise is coming from the frame. I’ve pulled the cables tight and the noise has disappeared. Just need to find a way to wrap the cable in foam to stop if happening when they come loose. Thanks for your reply

 

[Smokin Joe]

I think it may actually be the cables. I bounced the bike and discovered the noise is coming from the frame. I’ve pulled the cables tight and the noise has disappeared. Just need to find a way to wrap the cable in foam to stop if happening when they come loose. Thanks for your reply

A splodge of clear silicone sealant where the housing enters the frame should provide enough damping, with the added advantage of keeping water out of the tube.

 

[Chislenko]

Or just stay on the smooth roads 😀

 

[cyberknight]

Its not your filling rattling loose ?

 

[Brandane]

Or just stay on the smooth roads 😀

A bit drastic, emigrating just to cure a rattle!

 

[Ming the Merciless]

Ah the advantages of internal cables 😂

 

[Brandane]

I think it may actually be the cables.

Nice to know I'm not alone in finding this annoying. I have the same problem on my 2017 Merida Ride 4000, a bike which I otherwise am very happy with. If ever there was a solution to a problem which never existed, internal cables must be it. The price of vanity .

 

[Chislenko]

A bit drastic, emigrating just to cure a rattle!

To be fair our local council have just laid 30 yards of lovely smooth tarmac in the next village. The rest of the road is still garbage mind 😃

Obviously a local councilor must live on that stretch 😉

 

[C R]

To be fair our local council have just laid 30 yards of lovely smooth tarmac in the next village. The rest of the road is still garbage mind 😃

Obviously a local councilor must live on that stretch 😉

Better than Worcestershire CC who last year laid about a mile of lovely smooth tarmac in one of the lanes I ride, only to surface dress it last month .

 

[mpemburn]

Wow—I hadn’t even thought of this. My old frame had external cables, but the new one has internal, which—aesthetics aside—are a ripping pain in the butt. I didn’t notice the rattle until recently when the county put down the accursed tar-and-chip surfacing on several of my favorite roads.

So I guess it just a matter of living with it? The bike works like a champ in all other regards.

 

[mpemburn]

After reading this thread, I went out to my shop and did a "drop test" to see if I could determine whether the internal cables were the culprit. I'm fairly certain they are. Armed with this, I sought out solutions.

The first is a rather comprehensive look at the problem, but the fix is somewhat labor intensive:

View: https://www.youtube.com/watch?v=oBWhBM7KEoQ


The second is much simpler, and I think it's the one I'm going to go with:

View: https://www.youtube.com/watch?v=GoPpG5Btt7w


Good luck! I'll let you know how it goes for me. Hope I can manage to get it done before my next ride.

Marl

 

[simongt]

The price of vanity .

Wot - ? Surely the expense and faff is well worth the miniscule gain in aerodynamics - ?