- Reducing air pressures (tyres/shocks) for flying
Ah fair enough, I shan't worry then. Cheers!
Even if the hold was a total vacuum the effective pressure will only be increased by 14psi.
I could be talking crap but I would imagine that effective pressure is more to do with ratios than absolute values. A 28psi tyre at sea level has a 2x pressure differential from one side of the rubber to the other. Drop outside pressure to 7psi and there's now a 4x differential. Drop to 1psi and there's a 28x pressure difference (equivalent of running nearly 400psi at sea level)
As I type this, I'm starting to think I'm talking bollards actually… 😉
edit: yes, I'm definitely talking rubbishPosted 7 years ago
Apologies if this has been asked before but I can't seem to find an answer using the 'search'
Haven't flown with a bike for a few years, but was always told to let air out of the tyres. Back then my forks were elastomer though. Now I have air forks and a rear air shock. Worth letting some or all of the air out? Also, I've got tubeless wheels that are sloshing about with fresh stans sealant so I'm not keen on letting them down really.
What's the pressure drop like in the hold? If it's, say, 50% and I leave 20psi in my tyres then presumably the tyres would feel like they have 40psi for the duration of the flight – which is no big deal…Posted 7 years agoahwilesSubscriber
air pressure at sea level is about 15 psi.
if you put your tyres in a vacuum, it would be like adding 15 psi into the tyre.
aircraft holds are pressurised – to at least 10 psi.
it's sometimes necessary to deflate your tyres to fit them into a bike bag, but you really don't need to do it from an 'explosion-prevention' point of view…Posted 7 years agooliverd1981Member
last thing you want to do is mess up your carefully tweaked settings on your shocks and forks. +1 on letting the tyres down to save a bit of space in the box/bag. Also it normally pays to let the bike stand upright when you reach your destination so any oil/air issues can correct themselves.Posted 7 years ago
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