gstallons Posted May 18, 2009 Share Posted May 18, 2009 We were at the European Bike Rallye in Burkesville,Ky. this weekend. One of the vendors was "selling" nitrogen tire fills. At $5.00 per tire this sounded pretty good, so in went the new stuff. I had read a lot about this for passenger cars and was already aware of the benefits. Stable pressure at all temps, very little leakdown because of the size of the N molecules,etc. How many of you are running nitrogen in your tires? What are your thoughts? Link to comment Share on other sites More sharing options...
GuzziMoto Posted May 18, 2009 Share Posted May 18, 2009 We were at the European Bike Rallye in Burkesville,Ky. this weekend. One of the vendors was "selling" nitrogen tire fills. At $5.00 per tire this sounded pretty good, so in went the new stuff. I had read a lot about this for passenger cars and was already aware of the benefits. Stable pressure at all temps, very little leakdown because of the size of the N molecules,etc. How many of you are running nitrogen in your tires? What are your thoughts? I am not running it and I see no real benefits for road use. Even at the lower end of racing I see no benefits. Other then the cost it has no downsides/drawbacks, but in my opinion it does little more then lighten your wallet. But if you believe there's a benefit and running it makes you feel better then by all means do it. I'll spend my money on something else. Link to comment Share on other sites More sharing options...
raz Posted May 18, 2009 Share Posted May 18, 2009 I use 78% nitrogen, 21% oxygen, and 1% argon. Maybe not the best but it is cheap for sure Seriously, I think it's like those Iridium spark plugs. I tried those. They had one big advantage: They last forever. But they are very expensive and I don't really see the point as they won't make the bike run better. If I run across a 5€ Nitrogen offer I might try it too but I expect similar conclusions. Link to comment Share on other sites More sharing options...
gstallons Posted May 18, 2009 Author Share Posted May 18, 2009 That's what the smarty said to me in Cape Girardeau,Mo. when he installed the tires on my wheels. Link to comment Share on other sites More sharing options...
Dan M Posted May 18, 2009 Share Posted May 18, 2009 I use 78% nitrogen, 21% oxygen, and 1% argon. Maybe not the best but it is cheap for sure I'm with Raz. That mix works well in my tires, is available everywhere and it's free. Link to comment Share on other sites More sharing options...
Guest ratchethack Posted May 18, 2009 Share Posted May 18, 2009 I use 78% nitrogen, 21% oxygen, and 1% argon. Maybe not the best but it is cheap for sure That's funny. I'm running the same thing, with .038% CO2 (a life-giving nutrient and essential requirement for all green plants, recently officially classified by our government as a pollutant ), H20 vapor (NOT YET classified a pollutant by government grant chaser/political hacks, but 10X the "harmful greenhouse gas" that CO2 is ), and traces of neon, xenon, helium, hydrogen, and krypton. Works a treat in all kinds of tires -- even square ones. NOTE: It tends to be less effective if you drill holes in your tires, Dave. Link to comment Share on other sites More sharing options...
Cliff Posted May 18, 2009 Share Posted May 18, 2009 Given the supposed leakage of the lighter stuff, I'm probably up to 85% nitrogen. Link to comment Share on other sites More sharing options...
Guest ratchethack Posted May 18, 2009 Share Posted May 18, 2009 Good one, Cliff. Never considered it, but the older the tire, the higher the N2 concentration. Why, by 10K miles on a Z6 front, it must be up around 90%. Link to comment Share on other sites More sharing options...
jrt Posted May 18, 2009 Share Posted May 18, 2009 Ya'll talking about the law of effusion again? Effusion is the passage of gas molecules through a very small hole. It is also called Graham's law- the rate of effusion of a gas is inversely proportional to the square root of its molecular mass. H or He effuses more quickly than N2 or Ar or Kr. With a rubber tire, it's a bit more complicated because some gasses are actually permeable through the rubber (oxygen). FWIW, it's Graham's law that is used to enrich uranium. Also, FWIW, filling your tires with purified nitrogen is a waste of your money and our limited energy reserves. Filling your tires with helium is wasting a very limited natural resource and should be considered criminal. A bit excessive? Perhaps, but it illustrates the complete lack of benefit from this exercise. Link to comment Share on other sites More sharing options...
gstallons Posted May 18, 2009 Author Share Posted May 18, 2009 I don't suppose I should tell the part about the nitrogen in my tires helping my E.D. ? Link to comment Share on other sites More sharing options...
DeBenGuzzi Posted May 19, 2009 Share Posted May 19, 2009 SEEE this is why I love you guys, you see something and go, O rly now? question the new thing with old sound knowledge is a true sign of a guzzista, we add the sarcasm for free I would have added my own smart ass comment but everyone beat me to it. hmm anyone thought of using argon? its cheap and I bet most of you have it sitting there doing nothing connected to your cutting torches Link to comment Share on other sites More sharing options...
Murray Posted May 19, 2009 Share Posted May 19, 2009 I've got a few bridges in stock can i intrest you in one? Link to comment Share on other sites More sharing options...
raz Posted May 19, 2009 Share Posted May 19, 2009 question the new thing with old sound knowledge is a true sign of a guzzista, we add the sarcasm for free Sarcasm? We're only being helpful. Nitrogen adds to your unsprung weight! Link to comment Share on other sites More sharing options...
Jap In OZ Posted May 19, 2009 Share Posted May 19, 2009 I have to say; the last time i had a new set of tyres (diablos, so what do you guys reckon about those?) fitted the guys offered the N2 I explained that they will end up like that anyway (as per Cliffs comments) so they filled the rear with N2 and the front with the normal stuff! IT DOES WORK (maybe only on the diablo)!!! if you are a bit lazy like me and don't check the pressures to often it seems to work, pressure in the rear stayed a lott more constant.. Ciao Jasper Link to comment Share on other sites More sharing options...
jrt Posted May 19, 2009 Share Posted May 19, 2009 You had a leak on your front tire (tyre) valve. Simple as that. Link to comment Share on other sites More sharing options...
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