[shankar.balan]

Originally Posted by Dreadnought

I have had 175/65 R14s on my Indica Turbo and they worked like a charm on stock rims. You get you few mm in extra ground clearance and a slightly off speedo reading. That's all, but the grip was fantastic. I had Continentals on them.

Finally I think I will go for 175/65/14 XM2 Michelin. No issues with Rim size as u fitted the same ones on the stock rims. Waiting for a response from the website on manufacturing date still

I know that this is within the acceptable 4 %, any diff noticed in the odo/speedo readings?

I'm keeping one new bridge stone tubed (165/65/14) which I changed a couple of months back. Can it work as spare wheel to three bigger tyres, in case of a puncture?

185/60/14 would be better. They work very well on our Indica V2 Turbo and since the Vista is bigger this size will suit it very well indeed I believe.

[Dreadnought]

[quote=shankar.balan;2829958]185/60/14 would be better. They work very well on our Indica V2 Turbo and since the Vista is bigger this size will suit it very well indeed I believe.[/QUOTE

Bought the michelins finally from the website I mentioned.
185/60/14 for 18140 (set of 4)
Will have to wait till Monday for getting them fitted.
Hoping my iron rims hold on.
Any suggestions for tyre pressure?

[shankar.balan]

32 all round.though my dad uses 32 in front and 30 at the back. Personally I like the slightly higher pressure inflated tyre's ride more because Bangalore has the worst roads in India.

[Dreadnought]

front tyres always looked under inflated in the stock 165/65/14 even @ 32 psi. used to fill rear @ 28 psi. will check out 32 psi all around on the new ones. thanks.

[Dreadnought]

Fitted the Michelins.
Lesser Rolling resistance is obvious as for the same RPM, I'm getting a slightly higher speed.
Smoother ride over potholes. Though 32 psi still looks under-inflated.

[petroguzzler]

Will 195/60 R14 be an appropriate upsize for vista? my car has alloys.

[KiloAlpha]

Originally Posted by petroguzzler

Will 195/60 R14 be an appropriate upsize for vista? my car has alloys.

Yes, it will be OK to upsize to 195/60R14. The difference in rolling radius is 3.25mm, or +1.115%. Well within tolerance.

Just make sure the wider tyres don't interfere with suspension or bodywork. Check that the OE alloy width is appropriate for a 195 section tyre, should be between 5.5 and 7.

[suhas_pm]

Hi All,

Firstly, great going discussion, thank you for that.

My Vista TDi has bridgestone b250 175/65 r14 (current vista Tdi offering is 175/70 r13 as stock tires). The tires have clocked ~40k kms and will be due for change in coming 3 months or so.

I want to take this opportunity to address 'bumpiness' on the ride as in when the car goes over a pothole, it's more of a no-tire-only-steel kind of feel and I attribute tire and its low profile for that (front tires seem underinflated even at 35psi checked at 2+ air stations).

So the requirement is:
1. tires should provide/aid in suspension activity
2. should not make loud tire noise (nice to have attribute)

the constraints are:
1. fuel economy should not be hampered
2. outer diameter should not change much
3. pickup/acceleration should not change much

My drive is roughly 80kms a day, 20kms city, 60kms highway. Speed range on highway is 65-100kmph, drive is all thru 365 days a year (dry+wet driving conditions)

With the above framework, I have following sizes on my mind:

----------------width---aspect---depth---radius---total radius---
current---------175-----65-------113.75--14-------469.35---
current offering-175-----70-------122.5---13-------452.7---
option 1--------185-----65-------120.25--14-------475.85---change in OD = +1.38%
option 2--------185-----60-------111-----14-------466.6----change in OD = -0.59%
option 3--------175-----80-------140-----13-------470.2----change in OD = +0.18%

I guess option 1 will be the best for my purpose because option 2 offers even lower profile while option 3 is heavier tire that means more unsprung mass taht translates into worse shocks transmitted from wheel assy to shock absorbers.

Could you please provide your opinion on the above?

Also, I am planning for bridgestone my01/potenza g3 for option1. Could you please comment on that also?

Anything and everything is welcome, request you to please pour in all that!

Thanks you in advance and best regards,
Suhas

[suhas_pm]

Please pleaseeeeee reply.....

I am heavily banking on this forum to demonstrate their valuable opinions and experience.....

best regards,
Suhas

[directinjection]

Originally Posted by suhas_pm

I want to take this opportunity to address 'bumpiness' on the ride as in when the car goes over a pothole, it's more of a no-tire-only-steel kind of feel and I attribute tire and its low profile for that (front tires seem underinflated even at 35psi checked at 2+ air stations).

So the requirement is:
1. tires should provide/aid in suspension activity
2. should not make loud tire noise (nice to have attribute)

the constraints are:
1. fuel economy should not be hampered
2. outer diameter should not change much
3. pickup/acceleration should not change much

Could you please provide your opinion on the above?

I would suggest 185/70/13. Lesser rim, more tyre, more air cushion, lesser bumpiness, better grip.

Wheel wells of Vista are huge and should be able to take even 185/70/14. However, if you want to play safe, go in for 185/70/13.
Cheers!

[@Chaand]

Has anyone tried 185/80/R14 for he Vista? Hows the performance?

I was planning to go for the same and hence this query.

[WasavaTyres]

Did you mean 185/60/R14 ?? 185/80/R14 is an unavailable size.

[KiloAlpha]

I think the Vista stock tyre size is 175/70R14. If so, then 185/60R14 would be wrong upsize, the tyre is just too small - OD is less than stock by -3.8%, which is out of tolerance.

185/65R14 is OK (diff of -0.75%). 185/60R15 is best.

[@Chaand]

Originally Posted by WasavaTyres

Did you mean 185/60/R14 ?? 185/80/R14 is an unavailable size.

Apologies. I meant 175/80/R14

Basically i need tyres with wide sidewalls. With the stock tyres, the sidewalls are so narrow, that the front RHS tyre is always bogged down by the engine and driver weight (although the pressure continues to be 30 or 32)

[WasavaTyres]

175/80/R14 is a tyre used on the toyota qualis. It'll foul big time with your wheel well. The max you could opt for is 175/70/R14.