Been using FOBO for about 2 months, very convenient. Front is usually good, not uncommon to add 1-2 #s to the rear pretty regularly. 90 degree valve stems help on the rear.

 

Yep ... Me too.

 

You know what effects the tire even more? Improper pressure

This right here ^^^ The selling point is that N2 is a larger molecule than 02 and thus the tire is subject to less loss due to gas permeability, the reality is that nitrogen is 300 picometers in diameter oxygen is 292 picometers in diameter, a difference of 2.6% in molecule size. N2 expands and contracts with temperature changes just like air. It is more important to keep your tires properly inflated than it is to keep the nitrogen pure.

Pure N2 is used in aviation tires since it's non combustible, and being dry nitrogen it doesn't introduce water into the tire through condensation, during a landing cycle an aircraft tire experiences rapid acceleration and generates a lot of heat, water condensation can flash to steam and the absence of O2 keeps a fire from forming in the interior of the tire when they rapidly heat. O2 also has mild oxidizing effects on rubber, a bike tire should be changed every 5 to six years regardless of mileage and wear so running N2 is a waste of time and money, it provides a false sense of security.

 

I check pressure at least weekly.

 

I check in March and Oct.

 

I ride every day and check pressure about twice a week. I have TPMS on the bike so checking pressure is a breeze. If air is needed, the valves on my commuter bike are on the side (see pics below) and the center stand on the bike make it very easy.

 

Well how about that. A design that's NOT completely idiotic!
Now if only the MOCO could figure that out....lol

 

Air also has water vapor in it. When the vapor condenses, you get water in your tire and the air pressure goes down (consider what condense actually means). Nitrogen, if "pure", has no water vapor so you don't get the continuous cycle of building up moisture and losing pressure.


Hot brake rotor? Shouldn't you be checking the pressure while "cold"?



The larger molecule thing is BS. The difference is the presence of water vapor in air vs nitrogen.


Who leaves a bike tire on for 5 or six years? If you're doing that then it isn't the nitrogen that is a waste of money, it's the bike.


What is the "security" that one looks for in nitrogen?

 

Honestly, I almost never check. If I do, it's because I hit something really hard out on the road.

Once a year, I pull the wheels and drop them off at the indy next door. He puts on new tires and airs them up.

Repeat a year later.

 

I check the tire pressures every 7 to 10 days...always in the morning before going for a ride while the tire pressures are cold.

I usually have to add about two lbs. every 2 to 3 weeks no matter which motorcycle I'm getting ready to ride.