Modern bikes noisier?

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mercalia
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Re: Modern bikes noisier?

Postby mercalia » 25 Jul 2020, 1:08pm

so its not just me about the noisey freewheels? Mine are silent so whats the issue? "look at me"? My Shimano HG50/1s or some thing are silent

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al_yrpal
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Re: Modern bikes noisier?

Postby al_yrpal » 25 Jul 2020, 1:29pm

You can buy lots of electric bikes that look like racers with drops. When I get passed by one of these things making a loud noise I always assume its electric?

Al
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Mick F
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Re: Modern bikes noisier?

Postby Mick F » 25 Jul 2020, 2:11pm

geocycle wrote:It would be interesting to know which freehubs are quietist.
Campag Chorus, silent.
The lower groups were noisy as hell.

I gave up with my Chorus rear hub due to it breaking two alu cassette carriers. Had they been steel, I'd have been happier.
Now use a Miche, though that's not silent, but nowhere near as a noisy as my Mirage hub on my spare wheels.

It's all to do with the number and depth of the ratchet teeth in the hub and the way the pawls are sprung. More teeth, less deep, and a single ring-spring gives a quieter "click".
Mick F. Cornwall

Norman H
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Re: Modern bikes noisier?

Postby Norman H » 25 Jul 2020, 2:18pm

Ah, the curse of perfect hearing. I ride without my hearing aids, for fear of loosing them, and unless I spot them in my mirror the first I know of approaching cyclists is a friendly grunt as they cruise past. If I do see them coming I temporarily up my style and pace in an effort to lessen the humiliation.

Front dérailleur trimming is also a bit hit and miss, quite literally in fact.

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bigjim
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Re: Modern bikes noisier?

Postby bigjim » 25 Jul 2020, 6:12pm

My steel bikes are silent. Until I put a modern wheel on them. it's the flat bladed spokes on modern wheels that make a noise on my bikes. i'm also usually on D/T shifters, so no noise from them. Frighten a lot of cats.

andrewwillans49
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Re: Modern bikes noisier?

Postby andrewwillans49 » 28 Jul 2020, 7:46pm

Modern bikes aren't noisier per se. Poorly maintained bikes are noisy. It's quite possible with modern drivetrains to "crosschain", that is to say using the biggest rear cog on the rear cassette whilst remaining on the big ring on the chainset. This coupled with poor or no lubrication can be very noisy. Technology allows for a great deal more opportunity to crosschain.
As the owner of a variety of bikes from steel audax bike to aluminium and carbon fibre framed bikes I would concur that carbon fibre bikes can echo when cables knock against the frame.
I don't find it unduly irritating. Personally, I find a well maintained bike doesn't rattle or make odd ticking noises. Occasionally I hear the clutter in my rack bag jangling, usually steel tyre levers. If ICBA I wrap them in a cloth with elastic bands to secure them.
I'm usually too preoccupied with other road users or the conditions of the bridleways I occasionally travel along to concern myself with bike noises.
Keep your bike in tip top condition and enjoy the ride.

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bigjim
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Re: Modern bikes noisier?

Postby bigjim » 28 Jul 2020, 10:41pm

Modern bikes aren't noisier per se.

Mate of mine has a quite expensive carbon bike. He's recently added some carbon wheels. The noise from them to my ears [used to a silent steel bike] is horrendous. Of course he doesn't notice it as it's his only bike.

francovendee
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Re: Modern bikes noisier?

Postby francovendee » 29 Jul 2020, 8:28am

Does carbon fibre create or magnify noise?

Bonefishblues
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Re: Modern bikes noisier?

Postby Bonefishblues » 29 Jul 2020, 8:52am

bigjim wrote:
Modern bikes aren't noisier per se.

Mate of mine has a quite expensive carbon bike. He's recently added some carbon wheels. The noise from them to my ears [used to a silent steel bike] is horrendous. Of course he doesn't notice it as it's his only bike.

I agree, I think some are, put simply.

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squeaker
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Re: Modern bikes noisier?

Postby squeaker » 29 Jul 2020, 11:14am

francovendee wrote:Does carbon fibre create or magnify noise?
Neither: it may not attenuate vibration as well as a steel or aluminium fabrication (lower damping), and it also converts the vibration into sound more efficiently (high stiffness to mass ratio = good radiation efficiency). If it's creating significant noise then it might have a problem...
"42"

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Syd
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Re: Modern bikes noisier?

Postby Syd » 29 Jul 2020, 2:58pm

My noisiest bike is my TT one due to its carbon disc rear wheel and deep rimmed front. If I move it to more standard wheels it’s close to being among my quietest.

Cyril Haearn
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Re: Modern bikes noisier?

Postby Cyril Haearn » 29 Jul 2020, 5:46pm

How do carbon wheels sound?
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Syd
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Re: Modern bikes noisier?

Postby Syd » 29 Jul 2020, 7:52pm

With a solid rear carbon disc wheel the sound is very distinctive but difficult to describe.

Its kinda like a slightly oscillating hum with oscillations diminishing the closer you get to maintaining smooth power through the entire pedal rotation.

Deep rim front is similar but less noisy.

Never used shallow rim carbon wheels so can compare with metal options.

peetee
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Re: Modern bikes noisier?

Postby peetee » 29 Jul 2020, 10:07pm

I have just finished building up a 1980 Colnago Super with 2x7 speed Campagnolo Super Record groupset. I am completely astounded how smooth and silently it rides. 25 years ago I made the transition from a very similar bike to contemporary index gearing working up to 10 speed along the way. I thought it was a step forward in designed-in technical efficiency but now I’m not so sure. It’s just as fast as my other bikes and (here’s an over-used cliche) wanted to go faster still. I always sniggered when someone used that phrase but it seems it is true sometimes! :wink:
Current status report:
Back on two wheels in deepest Pastyland and loving every minute. Mission: to enjoy big, bad hills again.

Pebble
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Re: Modern bikes noisier?

Postby Pebble » 29 Jul 2020, 10:59pm

what an interesting thread - there has been a couple of incidents I can recall when I have rode a few miles with someone on a modern super expensive high tech flying machine, and on both occasions I have thought to myself what a noisy bike.

I like the peace and quiet when out on the road.