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why are some rear f...
 

[Closed] why are some rear freehubs so noisy?

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[#900307]

as an offshoot to the pretentious hubs thread...
why are some rear hubs so noisy? it seems to be mainly marins in the group i ride with. so clicky clakky! the reast of use are so much quieter
what gives?


 
Posted : 26/09/2009 9:46 pm
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The noisy ones are usually due to the rotor body that the cassette sits on being a hollow tube with nowt but a bearing at each end inside. It tends to act as an echo chamber, amplifying the noise of the freewheel mechanism. Quiet ones are usually a Shimano freehub type affair with all the freewheel mechanism squeezed inside the tube instead of on the inner end.


 
Posted : 26/09/2009 10:10 pm
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cause noizey hubs r 4 attentionwhores innit.


 
Posted : 26/09/2009 10:14 pm
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I run Pro IIs on a Cove Stiffee, Meta 5.5 and a Morewood Izimu DH bike

The Cove is always much louder than the Meta 5.5 and the Morewood is somewhere in-between, I figured it was the frame amplifying it, maybe the swingarms on the full-sussers damping the vibration from the hub?

The volume seems about the same on the cove even when I fit the wheel from the Meta 5.5, which seems to rule out one hub being randomly loud as hell.


 
Posted : 26/09/2009 10:15 pm
 mboy
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what EIASF said...

Noisy freehubs can usually be made quieter with a liberal amount of grease applied to the pawls of the freehub.


 
Posted : 26/09/2009 10:16 pm
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Before I read what superdan said I'd have guessed big, boxy swingarms might amplify it
Maybe Marin just use a clicky brand

It's probably a good thing mechanically though - implies a nice positive engagement ?

I've 2 xt hubs that are almost silent, some older hopes that are quite loud and an old DT that's loudish and weird sound cos it has some funny drive mechanism


 
Posted : 26/09/2009 10:28 pm
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Hope Pro2 on an Orange 5 is about the loudest I've heard. That swingarm seems to act like a resonance chamber.


 
Posted : 26/09/2009 11:22 pm
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stealth hubs
phil woods

what is this noise you speak of?


 
Posted : 26/09/2009 11:31 pm
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DT Swiss on my Nicolai helius FR rear end- not at all ninja stealth like at all. In fact, total rubbish for 'cheeky' trails. The welcoming posse is warned ages before my arrival.


 
Posted : 26/09/2009 11:32 pm
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like druid ses


 
Posted : 26/09/2009 11:42 pm