Anybody else not checked tyre pressures for a while?

[seb421]

I'd still worry about it. We fill our aircraft tyres with Nitrogen only. They still go down.

I thought the whole point of using nitrogen is that it does not expand and contract the same way air does with various weather conditions and does not go stale and flat. I could be wrong.

(:-})

Ditto, It was my understanding that it was far more stable than air and didn't expand and contract as readily as air under the same conditions hence race teams and track enthusiasts using it in its place

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[Xenocide]

That's correct but it's still a gas so can still escape if your valve is leaking or whatever.

[geodude]

I've been using nitrogen in my tyres for 5 years now and wont go back to air unless necessary.

Why? Because I can, longer tyre wear, reduced loss of pressure (unless faulty valve ) and better distribution of heat (not just on the contact patch) etc.

As for checking your pressures think POWDER check before every ride.

[Pete.L]

I'd still worry about it. We fill our aircraft tyres with Nitrogen only. They still go down.

I thought the whole point of using nitrogen is that it does not expand and contract the same way air does with various weather conditions and does not go stale and flat. I could be wrong.

(:-})

You are half right. Nitrogen is more stable and has less water content in it when compressed than air But the whole concept ,which has become misconstrued, is that nitrogen wont leak out like air does over time because it's a larger molecule.
Total rubbish
If you've got a Richard valve or a slightly porus wheel or a ruff rim (and that one can hurt ) it's still going to leak. Stick with air and at least you can check and or top up your tyres where ever you go.
Pete.l

[seb421]

I'd still worry about it. We fill our aircraft tyres with Nitrogen only. They still go down.

I thought the whole point of using nitrogen is that it does not expand and contract the same way air does with various weather conditions and does not go stale and flat. I could be wrong.

(:-})

You are half right. Nitrogen is more stable and has less water content in it when compressed than air But the whole concept ,which has become misconstrued, is that nitrogen wont leak out like air does over time because it's a larger molecule.
Total rubbish
If you've got a Richard valve or a slightly porus wheel or a ruff rim (and that one can hurt ) it's still going to leak. Stick with air and at least you can check and or top up your tyres where ever you go.
Pete.l

Would fitting a stronger valve spring reduce air loss? I was watching something other day and they said at speed the inertial forces on the spring can cause it to back off and a tiny amount of air escape

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[VTRDark]

with air and at least you can check and or top up your tyres where ever you go.

Now that is very true. And with that in mind and what you have said then Nitrogen is just not worth the extra. I will just have to just check my air pressure more regularly.

(:-})

[turbo_billy]

Would fitting a stronger valve spring reduce air loss? I was watching something other day and they said at speed the inertial forces on the spring can cause it to back off and a tiny amount of air escape

Thats why it is important to have a well fitting valve cap, keeps the crap out and acts as a secondary seal

[geodude]

with air and at least you can check and or top up your tyres where ever you go.

Now that is very true. And with that in mind and what you have said then Nitrogen is just not worth the extra. I will just have to just check my air pressure more regularly.

(:-})

If (and it is rare) I get to a point where it needs inflating due to pressure loss, I won't go "Oh sh1t, its got nitrogen in it, I can't put air in" lol I'll just top it up with air.

As for the extra cost, I get it for free as a loyal customer but even if I had to pay for it (£1:50 per tyre), I would without a doubt.

As with most things like this, at least try it before knocking it

"Running on nitrogen for 5 years and proud"

[VTRDark]

I'm not knocking. It at £3 a throw I would be willing to give it a try. I just got to find somewhere around here that does it. So far I have mostly read good stuff. I especially like the fact that it reduces tyre wear so there's a huge saving there to begin with. And I am particularly lazy with checking my tyre pressures. I normally wait until the bike's handling tells me.

(:-})

[seb421]

do you have any ATS euromasters down there? i think they all have the facility mate

Does it feel any different having Nitrogen in?

[geodude]

Does it feel any different having Nitrogen in?

erm. I dont run nitrogen in my SM and I do notice loss of pressure more frequently but it's already been said that this could be due to other issues.

I have noticed that when I do check pressures, which I still do regulalry, I rarely have to top it up and a bike will handle better at or near recommended pressure so I guess the answer to your questions is kind of yes. lol

It's the reduced wear where it really makes a difference. I had it written down somewhere but I managed to get about 1k more miles out of a rear after using nitrogen. 1k extra for a few quid is worth it to me.

[VTRDark]

do you have any ATS euromasters down there?

Nice one, I shall check them out. There a few down here.

(:-})

[mattycoops43]

[/quote]

Would fitting a stronger valve spring reduce air loss? I was watching something other day and they said at speed the inertial forces on the spring can cause it to back off and a tiny amount of air escape

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The valve is pushed IN to let air escape, so centripetal force will push it shut not open.

[Miztaziggy]

Going back a little, why do folk run low tyre pressure on track but not road?

[ging500]

Going back a little, why do folk run low tyre pressure on track but not road?

I believe, as push the tyre compound harder , this generates heat. This inturn increases the internal gas pressure more than say normal road riding. This therefore means, on track lower initial pressure is required