Just to clarify over things. I too used to run my car tyres on nitrogen, but stopped it long back, ONLY BECAUSE OF LACK OF AVAILABILITY of nitrogen fillers on the route I commute over mostly while going from MH to TS.
This thread is not meant to say that Filling Nitrogen is pointless or I do not mean to say that we are being cheated or any such thing.

This is just a though which I wanted to share and discuss with all of you so that you too can share your thoughts over the same.

Hi friends. I need your valuable suggestions for rear tyre for my honda shine model 2010.
It came with 2.75" 18 but after 27k ride, I replace with 90/90 18 tubeless and completed around 20k more.
Now after many punctures, I decided to change to more broader tyre for my shine since I want little more grip than mileage.

I have following options with me:
1. Opt for 3.00 x 18 tubeless Ceat Milaze tyre (only available in preferred size)
2. Go for 100/90 r18 in mrf/ceat/michelling but few mechanics warned me about the side bulging and friction since rim is smaller
3. Pick up 80/100 r18 as available in new shine
4. Go for 90/90 r18 mrf zappery as I am using now (not happy with the grip)
5. One shopkeeper suggested to use 3.00x18 tube tyre as tubeless since they have done it for few customer but I am quite concerned about it.

Your suggestions will be helpful for me.

Hello Friends, this is something I have been meaning to discuss here since a long time, about filling up nitrogen gas in our vehicle tyres. Me and my colleagues at work too have scratched our heads over these bringing forth individual perspectives.

Here’s my view.

We fill nitrogen in our tyres and we expect advantages such as Less pressure loss over time, longer Wheel life due to reduced corrosion, cooler running of tyres/wheels hence less wear and tear, etc.

And I am sure these are pretty genuine claims. But lets look deeper, shall we!?

Air is Composed of - 78% (approx.) Nitrogen and the rest are Oxygen, inert gasses, carbon di oxide, 0.4 to 1% water vapour (largely varying region to region, figures may be different)

A typical Off the market Nitrogen gas inflator for tyres has a specified purity of 95%-99.5%. Now this, too varies from manufacturer to manufacturer, but the scale is very much the same. And depends heavily on the amount of maintenance provided to the machine itself at our tyre dealers/petrol pumps/etc. wherever nitrogen filling is available.

So whatever the benefits of Nitrogen gas presence in our tyres are, we are already obtaining 78% of those when we fill regular Air in tyres.

Add to it, we are paying a premium of upto INR 250 (initial filling for 5 tyres) and approx. INR 30 (give or take a few) for top ups. (Some places don’t even charge for top ups) for the extra 22% only!

Given the quality and make of the machine, (with a 95% purity) that leaves us only with an edge of 17% more of nitrogen.

And here’s the deal (the cherry on top), when we fill nitrogen for the first time, at many shops they just Deflate all the tyres of your vehicle happily at once. The tyre sinks down BUT, there is still AIR left inside the tyre as it is Still Not in Vacuum condition and 100% Air has not been squeezed out. There is much possibility of 3 to 15% Air volume still left inside (More or Less depending on the stiffness and springy nature of tyre as well as the size of tyre itself, the taller the tyre, the more Air left inside) Though over a long period of time with top ups made with Nitrogen, that left over air may get replaced.

So, to sum it up:-
We already have 78% nitrogen in our tyres
The purity of Nitrogen gas pumped in our tyres might still leave us with upto 5% Air
The Method used to Drain AIR form tyres and replacing it with Nitrogen gas might be flawed and still leave the tyre with a considerable amount of AIR residue inside making the overall mixture back to as good as Regular Air.

So whatever Little Extra Benefits we may be reaping by getting Nitrogen in these given conditions can easily be achieved by regular pressure check and top-ups when required and a very little extra knowledge, care and maintenance of Tyres in General.

Now, In and IDEAL Scenario, there is no denying that:-
Nitrogen molecules are fatter and hence N2 will not escape from our tyres as fast as 22% of (as 78% is already nitrogen) AIR does.
Also Nitrogen would not allow corrosion as much as Air would.
And a host of other benefits like cooler running of tyres, no uneven expansion of Gas due to temperature changes of tyre, etc.
But then, that’s in Ideal conditions where the tyre has 100% Nitrogen gas with high purity.

Just to clarify over things. I too used to run my car tyres on nitrogen, but stopped it long back, ONLY BECAUSE OF LACK OF AVAILABILITY of nitrogen fillers on the route I commute over mostly while going from MH to TS.
This thread is not meant to say that Filling Nitrogen is pointless or I do not mean to say that we are being cheated or any such thing.

This is just a though which I wanted to share and discuss with all of you so that you too can share your thoughts over the same.

A friend is looking for a replacement for his Harley Davidson Superlow front tyre. The stock size is 120/70 ZR18. This tyre is not available anywhere except in the showroom at 14K which is quite high. The rear was no problem as it was the same size as the Duke. What are the options for the front? I see there are hardly any options in 18". The closest I found is 110/90 ZR18 (Bullet Classic Rear) in TVS. Is this tyre size ok for the Harley?


Edit: Just found this:
These are the choices I found in the stock size. Which is the best of the lot?
Snapdeal.com - Online shopping India- Discounts - shop Online Perfumes, Watches, sunglasses etc
Where can I get the below tyres?

Metro Continental:Fighter (Rear)18" and 17" also avail..120/80 Section Cost 1000/- INR

IRC: 120/80 18"(Rear): 1700/- Tubeless and with Tube also Avail.

CEAT zoom 120/80r18 is good fit and decent tyre. Around 2500/-

Thanks. I have ordered one on Snapdeal. Another nice option was the MRF Zapper in the same size. However it was a tubed tyre. I suggested to my friend to just install it without the tube and fit the tubeless valve. I had done this to my wife Alto some years ago and converted the tubed tyres to tubeless.

Hi guys
Which tyre is this??
What are the available sizes in the tyre??