Tubs with latex tubes.

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Ber Nard
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Joined: Mon Jul 12, 2010 08:33 am

Tubs with latex tubes.

Postby Ber Nard » Sun Oct 14, 2012 11:08 am

With winter fast approaching, the good bike will be going into hibernation soon - especially the carbon tubular wheels.

The tubular tyres have latex tubes in them so lose pressure over time. Not normally a problem as I top them up before a ride. Now I'm not going to ride them for a few months, is it better to leave them flat or keep them inflated? They will be hanging up so won't have the weight of the bike sitting on them when flat.

Cheers,

Rob

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ugo.santalucia
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Joined: Thu Apr 17, 2008 10:39 am

Re: Tubs with latex tubes.

Postby ugo.santalucia » Sun Oct 14, 2012 11:37 am

They will lose pressure in a handful of days... unless you want to spend the winter pumping them up...
If there is no weight on them, they'll be just fine... after all they are sold flat, aren't they?

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Ber Nard
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Joined: Mon Jul 12, 2010 08:33 am

Re: Tubs with latex tubes.

Postby Ber Nard » Sun Oct 14, 2012 12:14 pm

ugo.santalucia wrote:they'll be just fine... after all they are sold flat, aren't they?


This is what I thought but I wasn't sure if the fact they are now glued to the rim means it's better to keep some air in them.

Cheers,

Rob

pinarellokid
Posts: 1128
Joined: Tue Jul 03, 2012 16:06 pm

Re: Tubs with latex tubes.

Postby pinarellokid » Mon Oct 15, 2012 07:06 am

my tufo tubs recommended you store them inflated !!!!!
Specialized S Works SL2 . Campagnolo Record 11spd. rolling on Campag Zonda wheels

http://app.strava.com/athletes/881211

giropaul
Posts: 286
Joined: Mon May 26, 2008 12:47 pm

Re: Tubs with latex tubes.

Postby giropaul » Mon Oct 15, 2012 18:33 pm

Store them like you'd store new tubs -
slightly inflated
In the dark (sunlight degrades the treads)
Away from any electric motors such as fridges etc (ozone affects rubber)

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ugo.santalucia
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Joined: Thu Apr 17, 2008 10:39 am

Re: Tubs with latex tubes.

Postby ugo.santalucia » Tue Oct 16, 2012 07:25 am

giropaul wrote:Store them like you'd store new tubs -
slightly inflated
In the dark (sunlight degrades the treads)
Away from any electric motors such as fridges etc (ozone affects rubber)


What have electric engines to do with ozone? Do you think there is a significant amount of ozone generated as by product in an electric engine?

giropaul
Posts: 286
Joined: Mon May 26, 2008 12:47 pm

Re: Tubs with latex tubes.

Postby giropaul » Tue Oct 16, 2012 12:48 pm

From Wikipedia:
Ozone may be formed from O2 by electrical discharges and by action of high energy electromagnetic radiation. Unsuppressed arcing breaks down the chemical bonds of the atmospheric oxygen surrounding the contacts [O2 → 2O]. Free ions of oxygen in and around the arc recombine to create ozone [O3].[51] Certain electrical equipment generate significant levels of ozone. This is especially true of devices using high voltages, such as ionic air purifiers, laser printers, photocopiers, tasers and arc welders. Electric motors using brushes can generate ozone from repeated sparking inside the unit. Large motors that use brushes, such as those used by elevators or hydraulic pumps, will generate more ozone than smaller motors:

However: I just got told this by Belgian team and 6 day mechanics.


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