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**Samarth 619** · 06-27-2012, 04:52 PM

Topic Approved.

Interesting query indeed. Tubeless tyres losing pressure so swiftly. that too without puncture? Wheelspins don't really kill a tyre, I've had many. Yet my tyres lose only 1-2 PSi in a week or so.

1. I don't think so. Tyres don't give up like that. I've seen people running totally bald tyres that don't lose air pressure, in few days like you are losing.

2. If you plonk in a tube, you're going to have to remove the tubeless valve. Yes you can do it, although its not ideal for long term.

3. 4. and 5. no idea. Kindly check the Universal thread: Tyres.

6. I think the tyre is at fault. But can't confirm anything as I just perceive that from your text, and there's no other basis.

I've one suggestion, it will take time but solve your problem: Take the entire front wheel out, including valve, rim and front tyre. Submerge this entire wheel in a tankful of water at once, and apply palm pressure on the tyre, and try to notice where the air is leaking.

Because the problem is in: the tyre, valve or the rim. And all three would be underwater so you'll know what/ where the problem is.

**Divya Sharan** · 06-27-2012, 05:52 PM

Originally posted by Samarth 619 View Post

Topic Approved.

Thanks for the approval Samarth bro.

Interesting query indeed. Tubeless tyres losing pressure so swiftly. that too without puncture? Wheelspins don't really kill a tyre, I've had many. Yet my tires lose only 1-2 PSi in a week or so.

That's why I'm perplexed. Earlier, I used to check/refill air once in a week, the psi used to drop by 3-4 at max.

1. I don't think so. Tyres don't give up like that. I've seen people running totally bald tyres that don't lose air pressure, in few days like you are losing.

Hmm. I know. That's the problem. Dunno why I always face weirdest possible problems.

2. If you plonk in a tube, you're going to have to remove the tubeless valve. Yes you can do it, although its not ideal for long term.

Even I asked for a short term, as my current financial status is kind of

3. 4. and 5. no idea. Kindly check the Universal thread: Tyres.

I checked the ownership thread as well. Apparently a few members have put Michelin M75 up front. No idea, whether its still available.

6. I think the tyre is at fault. But can't confirm anything as I just perceive that from your text, and there's no other basis.

I've one suggestion, it will take time but solve your problem: Take the entire front wheel out, including valve, rim and front tyre. Submerge this entire wheel in a tankful of water at once, and apply palm pressure on the tyre, and try to notice where the air is leaking.

Because the problem is in: the tyre, valve or the rim. And all three would be underwater so you'll know what/ where the problem is.

Shall do it this weekend. Need to source appropriate tools.
I think I'll have to commute to office by bus for a couple of days.

**Ananth** · 06-27-2012, 05:57 PM

Change the tyres, change the disk pads / Check if the air valve mouth of the tyre has gone weak.

Tyre Suggestion: Front: Michelin Sirac Sport / Ceat Vertigo

Rear: Michelin M45 or Sirac or Ceat Vertigo

Check your tyre pressure once a week.

**aargee** · 06-27-2012, 06:00 PM

Divya Sharan - Being in Chennai & owning a ZMR, you've to contact the one & only person - PSR Ji. PM him & your issue WILL be resolved; pls remember to update this thread to share the knowledge

**ravi@17bhp** · 06-27-2012, 06:02 PM

Regarding your front tyre losing air quickly without visible puncture, there could be a tiny puncture which is not visible to the eye. As Samarth pointed out, you need to dip in water to point the leakage. Take your bike to a puncture shop where they repair lorry tyres. They generally have big tub with water to check air leakage.

You can't put 110 tyre in ZMR. At front, you can use Sirac Street 2.75 x 18 as a Tubeless type (the tyre is Tube type, but most of them are using it as Tubeless without any issues). At rear, Sirac Street 100/80 18 or M45 4.0 x 18. Note: M45 is not available anywhere now.

**Divya Sharan** · 06-27-2012, 06:30 PM

Originally posted by Ananth View Post

Change the tyres, change the disk pads / Check if the air valve mouth of the tyre has gone weak.

Tyre Suggestion: Front: Michelin Sirac Sport / Ceat Vertigo

Rear: Michelin M45 or Sirac or Ceat Vertigo

Check your tyre pressure once a week.

Suggestions noted Ananth bhai. I check air pressures every Saturday as a rule of thumb.
Guess, its time to replace tires. But disc pads??? Change in only 15k? They are fine IMO.

Originally posted by aargee View Post

Divya Sharan - Being in Chennai & owning a ZMR, you've to contact the one & only person - PSR Ji. PM him & your issue WILL be resolved; pls remember to update this thread to share the knowledge

Ya, he has a PM already... Waiting for his reply!

Originally posted by ravi@17bhp View Post

Regarding your front tyre losing air quickly without visible puncture, there could be a tiny puncture which is not visible to the eye. As Samarth pointed out, you need to dip in water to point the leakage. Take your bike to a puncture shop where they repair lorry tyres. They generally have big tub with water to check air leakage.

You can't put 110 tyre in ZMR. At front, you can use Sirac Street 2.75 x 18 as a Tubeless type (the tyre is Tube type, but most of them are using it as Tubeless without any issues). At rear, Sirac Street 100/80 18 or M45 4.0 x 18. Note: M45 is not available anywhere now.

Hey, we can put a 110 at the rear, right? Michelin M45 is available in Chennai.
At least now it is. I'm getting one myself, if I don't opt for the Ceat Vertigo thingy as suggested by Ananth bhai.

**ravi@17bhp** · 06-27-2012, 07:29 PM

Originally posted by Divya Sharan View Post

Hey, we can put a 110 at the rear, right? Michelin M45 is available in Chennai.
At least now it is. I'm getting one myself, if I don't opt for the Ceat Vertigo thingy as suggested by Ananth bhai.

AFAIK, ZMR can't accommodate 110 section tyre due to the rear disc (I can be wrong). Karizma can accommodate. If you put 110 tyre in ZMR, you need to cut/remove the chain case.

Its good to know that M45 is available now. I would prefer M45 to Ceat Vertigo. You can use M45 as a Tubeless without any issues.

**Divya Sharan** · 06-27-2012, 07:37 PM

Originally posted by ravi@17bhp View Post

AFAIK, ZMR can't accommodate 110 section tyre due to the rear disc (I can be wrong). Karizma can accommodate. If you put 110 tyre in ZMR, you need to cut/remove the chain case.

Its good to know that M45 is available now. I would prefer M45 to Ceat Vertigo. You can use M45 as a Tubeless without any issues.

Oh, I didn't know this (the bold part). I have seen the M45 on Sriram sir's ZMA, hence I thought I can put it too.

By the way, this is PSR sir's reply so far.

By front wheel lock you mean the wheel wouldn't spin...the brake was jammed etc., possibility is ,that with new oil your braking efficiency had improved...and your loosing 5~8 PSI is actually improving tire foot print and leads to higher braking efficiency with lesser effort.
For the front ZMA uses 2.75 18 and some have fitted even 3.0 /18 without issues. The rear of course is 100/90 -18 and M45 is the winner. Dunlop Geo cruiser is also good, and so is CEAT GRIPP tires. For tires just PM Mr.Sriram and he will be able to help you.
Regarding using tube inside Tube less , it is an option used world over when tube less is not able to retain tire pressure...so no issues.
Regards
PSR

The problem of loosing air in TL tire is due to non matching of the Wheel rim and tire surfaces...sometimes I had seen mechs., sticking Electrical insulation tape to the inside of rim and the seating the tire and inflating it..and it had sealed air leak...

**worrisomebear** · 06-27-2012, 09:05 PM

Originally posted by ravi@17bhp View Post

Regarding your front tyre losing air quickly without visible puncture, there could be a tiny puncture which is not visible to the eye. As Samarth pointed out, you need to dip in water to point the leakage. Take your bike to a puncture shop where they repair lorry tyres. They generally have big tub with water to check air leakage.

You can't put 110 tyre in ZMR. At front, you can use Sirac Street 2.75 x 18 as a Tubeless type (the tyre is Tube type, but most of them are using it as Tubeless without any issues). At rear, Sirac Street 100/80 18 or M45 4.0 x 18. Note: M45 is not available anywhere now.

the chain guard needs to be cut to accomodate the m45 or pirellli sport demon, but its possible,

**psr** · 06-27-2012, 09:07 PM

Originally posted by Divya Sharan View Post

Oh, I didn't know this (the bold part). I have seen the M45 on Sriram sir's ZMA, hence I thought I can put it too.

By the way, this is PSR sir's reply so far.

I have sent you a PM with guidelines and place where you can get the tire / rim sealing ,and the air Filler valve leak checked..
If you want to do a DIY, then get a large round plastic bowl which can accommodate the wheel, fill it with water, then immerse the wheel in it...you will have the answer to your problems.
You say your wheel locked up, and also had wheel spin...and have issues with air leaking in TL tires....You have to address the issues one by one to get proper solution...
Since you are worried and seem confused take the bike to ASC if it is in warranty, or to the place I suggested and get the problem fixed.

**Antonet** · 06-27-2012, 09:32 PM

110/90 Zapper Q 18" 56p is available with MRF dealers in chennai..Both TT and TL. This will suit ZMR.

**Divya Sharan** · 06-27-2012, 09:48 PM

Originally posted by worrisomebear View Post

the chain guard needs to be cut to accomodate the m45 or pirellli sport demon, but its possible,

Hmm, I don't want to make any changes to my bike.

Originally posted by psr View Post

I have sent you a PM with guidelines and place where you can get the tire / rim sealing ,and the air Filler valve leak checked..
If you want to do a DIY, then get a large round plastic bowl which can accommodate the wheel, fill it with water, then immerse the wheel in it...you will have the answer to your problems.
You say your wheel locked up, and also had wheel spin...and have issues with air leaking in TL tires....You have to address the issues one by one to get proper solution...
Since you are worried and seem confused take the bike to ASC if it is in warranty, or to the place I suggested and get the problem fixed.

Yes sir, I saw your PM now. Thank you so so very much.

Originally posted by Antonet View Post

110/90 Zapper Q 18" 56p is available with MRF dealers in chennai..Both TT and TL. This will suit ZMR.

Thanks for the heads up bro. I'll see, if the reviews for Zapper Q are good and if I don't need to cut the chain cover, I'll go for them.

**ravi@17bhp** · 06-27-2012, 09:51 PM

Originally posted by Divya Sharan View Post

Thanks for the heads up bro. I'll see, if the reviews for Zapper Q are good and if I don't need to cut the chain cover, I'll go for them.

Any 110 section tyre, you need to cut the chain.

You can try Sirac 100/80 x 18 at the back.

And, by any chance, are you trying to brake hard on wet road?

**HarishK** · 06-27-2012, 11:58 PM

Originally posted by Divya Sharan View Post

My queries -
1. Have the tires, especially the "Front" given up?
2. Can I put a tube in the TL type tires or will I have to plonk in new tires?
3. Rear, I've planned for Michelin M45 tube type, what about the front?
4. Are there any MRF manufactured 110 section tires for the rear?
5. Can I put any other tire other than the stock 80/100 in the front?
and most important question:
6. Are tires really the culprit? Or something else?

I know this is a very long list but I need solutions.
Thanks.

I had the same mysterious air leak in my R15, after many diagnosis it was found that the tyre side walls had air leak. One Puncture walah told me to replace the alloy and another told me to replace the tyre. I took it to the nearest MRF showroom the removed the tyre, refitted it back with a powder coat and locked the air flow. Cost was 50rs (2yrs back) I am running fine with the same tyre and its about 40K Kms now

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