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trialsguru
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silly question, shocks on planes...
« on: July 05, 2008, 17:26:52 PM »

so yer like snakes on planes...

this is probably a silly question but, ill be taking my bike to andorra next week, do i need to let some air out of my rear DHX air shock or will it be ok?
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eddy.
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Re: silly question, shocks on planes...
« Reply #1 on: July 05, 2008, 17:38:06 PM »

yep, silly question. no, you don't.

wrap your bike up good and proper though...
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dodgey-jumper
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Re: silly question, shocks on planes...
« Reply #2 on: July 05, 2008, 17:52:37 PM »

Yeah, there was a topic on this a long while back, you don't need to remove any air.

As eddy said, bikes are perfectly safe on planes aslong as they are packaged properly.

Have fun in Andorra!

JJ
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Interdh5
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Re: silly question, shocks on planes...
« Reply #3 on: July 05, 2008, 22:37:53 PM »

sorry to nick your topic...but....

if some airlines ask you to take the pressure out of your tires, why do they not both with the shock? :S
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Chris.
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Re: silly question, shocks on planes...
« Reply #4 on: July 05, 2008, 22:38:48 PM »

Not related to the topic as such,
But i dont get why you would have to let the air out of your shock ?  Undecided

And what interdh5 said, Why the presure out the tyres also ?  Undecided
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Interdh5
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Re: silly question, shocks on planes...
« Reply #5 on: July 05, 2008, 22:42:34 PM »

Not related to the topic as such,
But i dont get why you would have to let the air out of your shock ?  Undecided

And what interdh5 said, Why the presure out the tyres also ?  Undecided

i understand why they say it. its because of the change in air pressure...which is understandable..
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Screech.
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Re: silly question, shocks on planes...
« Reply #6 on: July 05, 2008, 23:04:27 PM »

its all nonsense, the maximum change in pressure would be -1bar below atmospheric and your shocks and tyres will take way over that, when you bottom out your shock is at a psi well over the pressure diferential in a cargo hold.
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i mean, i take it that means hed be happy riding a bike made of spaghetti
Chris.
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Re: silly question, shocks on planes...
« Reply #7 on: July 05, 2008, 23:09:11 PM »

Ahh, Might it damage the shock/ Whatever else due to the change in presure whilst being in the plane ?
Im just trying to figure out why you would need to take air out of your shock and tubes ect...

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FELT
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Re: silly question, shocks on planes...
« Reply #8 on: July 06, 2008, 08:19:35 AM »

No it won't - as Screech rightly stated. All aircraft holds are pressurised to exactly the same pressure as the passenger cabin which is equivalent to 8,000 - 10,000 feet at cruising altitude. If you're off to the mountains you may well be going to take lifts to that sort of Altitude and you don't change the shock and tyre pressure every time you go up or down a lift do you. Even if the Aircraft accidentally depressurised the pressure change would be maybe 10 psi and increasing the relative pressure in your tyres or shock by 10 psi is hardly likely to be a problem. These rules are normally invented by people who don't understand physics and once they exist they get perpetuated.
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EuanRyan
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Re: silly question, shocks on planes...
« Reply #9 on: July 07, 2008, 12:15:02 PM »

No it won't - as Screech rightly stated. All aircraft holds are pressurised to exactly the same pressure as the passenger cabin which is equivalent to 8,000 - 10,000 feet at cruising altitude. If you're off to the mountains you may well be going to take lifts to that sort of Altitude and you don't change the shock and tyre pressure every time you go up or down a lift do you. Even if the Aircraft accidentally depressurised the pressure change would be maybe 10 psi and increasing the relative pressure in your tyres or shock by 10 psi is hardly likely to be a problem. These rules are normally invented by people who don't understand physics and once they exist they get perpetuated.

very well said  Wink

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Re: silly question, shocks on planes...
« Reply #10 on: July 07, 2008, 12:36:56 PM »

I'd put money on that being more to do with the handling than air pressure Wink
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Downhiller13
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Re: silly question, shocks on planes...
« Reply #11 on: July 07, 2008, 12:46:54 PM »

Even if the Aircraft accidentally depressurised the pressure change would be maybe 10 psi and increasing the relative pressure in your tyres or shock by

lol DHX shocks are high pressure anyway so 10psi is nothing even if you run your shock hard
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dhdavem3
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Re: silly question, shocks on planes...
« Reply #12 on: July 07, 2008, 13:08:05 PM »

have you never heard of the guys changing tyre pressures on the plane tyres mid flight Roll Eyes
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Charlie.
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Re: silly question, shocks on planes...
« Reply #13 on: July 07, 2008, 13:14:53 PM »

Can someone answer why my mates 5th element with about 150psi in it was fine here and then in france it simply stopped working, fast rebound top out etc like there was no air in it.
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Screech.
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Re: silly question, shocks on planes...
« Reply #14 on: July 07, 2008, 13:37:28 PM »

well 150psi is quite high anyway but its more likely the shock was damaged physically by its handling than by the pressure, think when the shock is bottomed out its lost sooooo much volume the pressure hits a crazy spike.
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i mean, i take it that means hed be happy riding a bike made of spaghetti
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