PDA

View Full Version : Nitrogen to inflate tyres..



Johnny
16-02-2009, 09:12 AM
Hiya..

Having tried and tested this ( worked in the tyre field, so was free and begging for the taking), I just wanted to say, what a load of shit this is, and maybe save some of you some money.

Firstly, Nitrogen is used for a few reasons.

a) Bigger, heavier particals, so air pressure can not seep through tyre itself ( tyres are purous, leave car bike sitting for a long period, and see tyre down/flat, well air pressure is lost through tyre itself, not some kid letting them down :p ).

b) Maintains air pressure, as bigger particals dont heat up as quick, and with heat gain, tyre pressure is also gained.

c) doesnt react with rim.

d) smoother ride, and longer lasting tyre life.

Well, there the reasons they are used and thats what is used to sell to customers, costs like $10 per tyre to inflate..

Debate time :lmao:
Look into it and somemore, and you will realize how much bullshit the above is.

First of all, the atmosphere contains 78% nitrogen, 21%oxygen, and a mixture of other gasses, so when inflating your tyre normallly anyway, you are getting 78% nitorgen anyway.
Though, when inflating and using nitrogen alone, it must be as close to 100% for it to be any good, moisture in tyres, air, compressor etc, that is just not possible to achieve, so, mmmm.
Expanding tyre life, well that comes down to tyre pressures and suspension, and wheel alignment on cars, The sales pitch of nitrogen doubling tyre life, debunked.
Another drawback is, if inflating with nitrogen, you must top up with nitrogen alone, now hang on, if tyre pressure is remained constant and not lost, why would you need to top up ?, slow leak, puncture aside, in which case your stuffed anyhow.


All the good using Nitrogen could be achieved by using normal inflating devices, and maintaining tyre pressure..

p.s, my tyres where inflated with nitrogen ( I deflated and inflated five times :lmao: to make sure there was no moisture left in tyres), they where set at 34 front, 36 rear. Bike has never spent more than a couple hrs at a time on sidestand, and always on stands, and not left sitting without it being turned over, ridden enough to keep things lubed and have blood circulating. Tyre pressures checked last night, and are 28 front, 29 rear. Loss of pressure through tyre itself, also debunked..


Bring on the debate, let me hear how well the salesmans pitch was that sold it to you :lmao:


:ayyy:

Underground
16-02-2009, 09:26 AM
Bring on the debate, let me hear how well the salesmans pitch was that sold it to you :lmao:

:ayyy:



He told me i'd have bragging rights at the cafe :(

Johnny
16-02-2009, 09:31 AM
He told me i'd have bragging rights at the cafe :(
So, he didnt give you the fancy smancy caps in colour of your choice, with N02 stamped ontop, to help you with bragging rights ?


:lmao:

Underground
16-02-2009, 09:32 AM
So, he didnt give you the fancy smancy caps in colour of your choice, with N02 stamped ontop, to help you with bragging rights ?


:lmao:

After paying for the rim stickers (well the rims were off anyway), i'd run out of cash :confused:

zenodamper
16-02-2009, 10:08 AM
- gases will migrate thru rubber = not good!

- OEM shocks are XXXX due to this concept - aftermarket's should not suffer this; if they were designed that ways, run! (I do not sell bladder shocks).

- the atmosphere may be 78% N; but I would not use regular air in someone's shock! ...and although likewise I have dry nitrogen here for shocks, I still use regular air in my tyres.... I like the whole growing/shrinking feeling (sort of sexual) when starting a ride... :lmao:

Johnny
16-02-2009, 10:31 AM
After paying for the rim stickers (well the rims were off anyway), i'd run out of cash :confused:
LOL...Good move, them rimstickers help balance your wheel :stirthepot: ( but you got ripped, fancy smancy caps are for free :p )



I like the whole growing/shrinking feeling (sort of sexual) when starting a ride... :lmao:
:lmao:

LAW
16-02-2009, 04:10 PM
We use nitrogen to inflate aircraft tires but only because it won't catch fire. If the magnesium wheel rims caught fire (brake fires will set the rims alight) and there was compressed air in the tire it would flare up but if a tire bursts and it's full of N2 then in some cases it can actually put the fire out.

There is absolutely no way N2 will leak less than O2, for starters the difference is 1 neutron and 1 proton (I think).

It's sold to people who drive Beamers and ride Dukes because chances are they're silly enough to pay for that shit :stirthepot:

Maybe it won't react to the rubber tire and give some extra life but I know that I wear mine out long before they degrade and fall apart.

wade193
16-02-2009, 04:52 PM
We use nitrogen to inflate aircraft tires but only because it won't catch fire. If the magnesium wheel rims caught fire (brake fires will set the rims alight) and there was compressed air in the tire it would flare up but if a tire bursts and it's full of N2 then in some cases it can actually put the fire out.

I also saw a show that said they use Nitrogen because it doesn't heat and expand as much as 02. Cold tempretures at altitude -20? then landing and the tyres heat to over a 100'c upon landing(this show was on 747's) would expand and potenially burst.

I'd never bother with it in my tyres and as for the fancy valve caps, I never check out a blokes valve cap :lmao:

Turtle
16-02-2009, 05:22 PM
Leave that Nitrogen stuff for the planes........

zRoYz
16-02-2009, 05:38 PM
the 2 main reasons are doesn't react like 02 during heat cycles & the moisture content in 02 effect on steel rims (have alloy rims then wtf).

total waste of money unless your a professional racer where every little bit helps to go quicker.

Turtle
16-02-2009, 05:40 PM
the 2 main reasons are doesn't react like 02 during heat cycles & the moisture content in 02 effect on steel rims (have alloy rims then wtf).

total waste of money unless your a professional racer where every little bit helps to go quicker.

So you're saying for the average punter its a Wank ??

zRoYz
16-02-2009, 05:48 PM
So you're saying for the average punter its a Wank ??

might as well just burn your money.

Turtle
16-02-2009, 05:51 PM
might as well just burn your money.

Guess i'll just let mine down and put normal air in them....... :(

r1hellman
18-02-2009, 11:55 AM
I've looked into it and asked around before too. I spoke to one of the process engineers at work about it. Apparently the rate at which gasses expand with temp are virtually all the same. The only advantage he could come up with is the moisture thing. If you get some water in there and it evaporates and turns to gas, then it will expand more with heat. But we're talking tiny amounts! So dry nitrogen could offer a tiny, tiny advantage. Until you top up with air next time! Me, I'm using air :-)

Geoffro

BAZ77
18-02-2009, 04:47 PM
I like the nitrogen because you get those cute little red valve caps.....

CowskinBodybag
06-03-2009, 09:45 PM
good point Bazz! and they will match your bike. well worth being a tosser for :). may see about 'em meself. not.
it sounds good, until the obvious point made early about what air is made of.