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Old 03-23-2014, 10:25 AM   #1
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(Nitrogen)... N2...or no N2, that is the question?

I wonder, why more people don’t choose N2 over compressed air tire inflation?
After all, most high performance vehicles rely on nitrogen inflated tires.

Better Fuel Consumption:
Nitrogen gas is slower than air to leak from tires because of the larger size molecule, therefore, proper inflation pressure is maintained longer ensuring a more consistent ride and better gas mileage.

Improved Tire Life:
Improper air pressure is one reason that tires wear improperly and quickly. Because nitrogen-filled tires maintain proper air pressure longer they provide more “even” tire regular wear.

Improved Tire Endurance:
Compressed air contains moisture, so in addition to inconsistent tire’s inflation pressure, the moisture can also react with the rubber compounds in the tire, causing them to break down and lose their strength and durability.

Improved Tire Running Stability:
Nitrogen filled tires maintain a more consistent tire pressure; cooler running; longer tread life; less oxidation of tire components, and reduced rim and wheel corrosion.

What are your thoughts of having Nitrogen filled tires?
For street? for track?
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Old 03-23-2014, 10:40 AM   #2
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I would have to probably say because of the lack of knowledge plus availability. I know some car dealerships are switching to nitrogen filled tires for their fleet. Haven't heard so much about for motorcycles though.
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Old 03-23-2014, 10:47 AM   #3
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Yes, new cars and fleet trucks use nitrogen. Most high performance vehicles rely on nitrogen inflated tires.

“By far, the single most critical factor for maximizing tire life and minimizing the chance of catastrophic tire failure is maintaining the proper inflation pressure for a given tire size and load. Properly inflated tires not only last longer, but also are safer. One way to help maintain proper tire inflation is to fill tires with nitrogen instead of compressed air. Nitrogen allows a tire to retain more of its original properties.”

Nitrogen molecules are much larger and less permeable than oxygen molecules so they will stay fully inflated three to four times longer, keeping tire pressure more consistent. And because nitrogen is an inert gas it is non-flammable, keeping motorists safe on the road.
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Old 03-23-2014, 11:00 AM   #4
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Old 03-23-2014, 11:25 AM   #5
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I used nitrogen on my motorcycles (when I had them). tire pressures stay more stable. very little variation in tire pressure from cold to hot.
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Old 03-23-2014, 12:10 PM   #6
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Old 03-23-2014, 01:48 PM   #7
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The air we breathe is 78% nitrogen.
The key for tires is to used dried nitrogen.
That said, motorcycle tires have a much lower volume of air compared to a car tire, so any volume loss will equate to a pressure loss, whereas with a car tire it takes a much greater loss of volume to affect pressure.
Tires are porous and over time will lose volume. Since the volume loss on a motorcycle will affect pressure more frequently than a car, you'll need to have a convenient supply of dried nitrogen to refill with.
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Old 03-23-2014, 07:32 PM   #8
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Why don't we all just pull up to the nitrogen outlet and fill up when we need air? Maybe because this info have been know for ever, but it's not exactly available everywhere
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Old 03-23-2014, 09:54 PM   #9
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I've used CO2 tanks to inflate truck tires before because it compresses to liquid a tank can fill more tires (than nitrogen). But even a tiny nitrogen tank (19x7") would fill small motorcycle tires.

Someone has pointed out that the key word is the nitrogen has no moisture which is the source of pressure variations with temperature. Or at least is more responsible than N2 vs O2. And a small nitrogen tank is more easily accesable than a compressor with a refrigerator unit.

I have this size tank

but with a CO2 regulator. You need a different regulator for nitrogen gas.
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Old 03-23-2014, 10:55 PM   #10
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As patrick stated. Dry is the major factor in the reports I have read. Nitrogen comes dry, most compressors are filled with water. Drain your compressor tank, install a decent dryer. Most bang for your buck.
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Old 03-28-2014, 12:04 PM   #11
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Yep, availability IS a problem,
personally, I think the benefits of N2 are worth it, for either the everyday rider like myself, or the occasional rider... and especially for track use.

I have the "wand", which works great, if anyone is interested in trying nitrogen let me know. I have a mobile set up that I could easily transport to the track too.
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Old 03-28-2014, 12:59 PM   #12
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I got my car over a year ago and it came with nitrogen in the tires. I only had to top them off one time a few months ago.
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Old 03-28-2014, 01:01 PM   #13
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Originally Posted by mx6er View Post
+2,398,793,908,978. Availability is #1 key why others don't use it. It is not on every street corner gas station. But when I raced dragsters we used N2 100% of the time because we had it available.

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