Vibration when freewheeling

Discuss light weight issues concerning road bikes & parts.
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tinchy
Posts: 905
Joined: Sun Feb 22, 2009 9:53 pm

by tinchy

Hi guys,

Recently replaced my chain and cassette, running some 4 year old Mavic Kysriums. Whilst out riding today an annoying noise has developed. Basically, when I am free-wheeling at considerable speed (20mph+) I can feel a vibration within the cranks that feels like it originated back towards the cassette. If I do not rotate the pedals the vibration culminates in a squeaky noise until I start pedalling again. My initial thoughts are the freehub, but that way cleaned before I installed the new cassette. What are your thoughts, other than just dont stop pedalling? :mrgreen:

by Weenie


maxxevv
Posts: 1949
Joined: Wed Feb 09, 2005 4:51 am

by maxxevv

The bushing on the freehub has worn out.

You need to change the freehub. Or if you're handy, swap out the bushing. (That is if you can fabricate one.)

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tinchy
Posts: 905
Joined: Sun Feb 22, 2009 9:53 pm

by tinchy

Ah really! Is it still rideable or is it wise to swap the wheel?

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tinchy
Posts: 905
Joined: Sun Feb 22, 2009 9:53 pm

by tinchy

(Stingy student warning)

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Devon
Posts: 775
Joined: Fri Apr 12, 2013 1:19 pm
Location: Oxford, England

by Devon

Are your hubs sealed bearing? If not, when you washed the bike you may have washed too much grease out of the bearing housing.
Campagnolo; because it's a bicycle, not a fishing rod.

Butcher
Shop Owner
Posts: 821
Joined: Sun Jan 03, 2010 4:58 am

by Butcher

Yes, hub bushing. Google it and you will find why/how. There is a seller on eBay that has a bearing that eliminates the bushing. I bought it and it works great.

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Sjoerd
Posts: 243
Joined: Fri Jan 15, 2010 7:22 pm
Location: Les Pays Bas

by Sjoerd

He calls himself the hubdoctor. That should make searching a little easier.

by Weenie


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tinchy
Posts: 905
Joined: Sun Feb 22, 2009 9:53 pm

by tinchy

thanks il look into it

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