[driver52001]

Originally Posted by Sridhar K

^^185/65/R15 upgrade should be absolutely fine

I am an accidental connoisseur of Ignis tyres Have used 2 options - 185/65/R15 (Yoko Earth 1) and 195/60/R15 (Conti UC6). Here are my observations.

The 185/65 increased ground clearance quite a bit and under heavy load, the rear wheel wells were uncomfortably close to the tyres. The handling seemed a bit wobbly. I wouldn't recommend 185/65 for the already high GC Ignis.

Before a 6,000-km 7-state trip, I swapped to UC6 195/60. The handling was excellent. The car stayed glued to the road in high speed, and lane changes didn't make me nervous. Everything felt predictable. Ride cushioning also improved. The thuds didn't enter the cabin much. 195/60 is the only worthy upgrade for the Ignis.

But, a big but, is that Ignis comes with 5J alloys, and the minimum required rim width for 195 is 5.5J. 6J or 6.5J would be ideal. I noticed that the 195 ballooned out from the rims quite a bit and it seemed the stress on the sidewall would increase over a period of time because of the not-so-ideal rim width for this tyre size. The massive balloon effect made it look like the weight of the car is being supported by that curve and not the whole tyre. Please correct me if this is a misguided observation.

So, am back to stock size, i.e. 175/65/R15 in Conti UC6 and am quite happy. They are grippy and have less noise. Though I feel the car is a bit flighty in high speed compared to the 195, they are much better than the stock rock hard Bridgestone Ecopia 150, which Ignis came with from the showroom.

Bottom line: Don't upsize if the need is not fundamental. Upgrade to excellent, high-quality rubber in stock size.

Any other options?

Yes, aftermarket alloys of 5.5J to 6-6.5J to fit 195/60/R15. But this means an exhausting hunt for acceptable offset and centre bore size (probably the most important aspect) as the stock rims. As people have suggested here, try Swift new-gen alloys. They are probably 5.5J and offset may be different by a miniscule factor. Do check centre bore size though. I have not bothered to do the math or look up now.

Downside of the above option?

Even if do get a good match in aftermarket alloys, the rims - if they are not black - may not look good at all. Ignis and black alloys go very well, in my very subjective opinion.

[Sridhar K]

^^^ Excellent post and your observation on 185/65 is interesting. I concur with your observation on 195/60 R15. I checked the alloys on the new Swift OE alloys and they come in two different colors i.e. Silver and machine cut dual tone. A few colors like blue, the silver alloys will look ok but the dual tone machine goes well with most of the colors of ignis. Anything more than 5.5 J alloys will protrude out as I have seen it in my colleague's ignis. Haven't looked at the centre bore size though.

[YakubKC]

I’m looking to replace the tyres on my Ignis. Based on the discussions here:
1. 195/60 betters the handling but stress on the sidewalks seem to be high due to the 5j rims.
2. 185/65 increases ground clearance even more and with some heavy luggage, the gap between tyre and body might be minimal.

This leaves me with the option of either 185/60 or the stock size of 175/65. Considering that I have a roof box on my car and therefore, some additional weight/luggage on top, what size do you suggest i choose?

[driver52001]

Originally Posted by YakubKC

but stress on the sidewalks seem to be high due to the 5j rims.

This was my assumption. Others with sound technical knowledge may be able to explain it better. I only took into account what internet shows, that maximum recommended width for 5J rim is 185. Would be helpful if someone could explain what bad can happen theoretically if we use 195 on 5J. But 195/60/R15 is the best upsize for Ignis, ignoring the 5J factor.

[Mustang_Boss]

Originally Posted by driver52001

This was my assumption. Others with sound technical knowledge may be able to explain it better. I only took into account what internet shows, that maximum recommended width for 5J rim is 185. Would be helpful if someone could explain what bad can happen theoretically if we use 195 on 5J. But 195/60/R15 is the best upsize for Ignis, ignoring the 5J factor.

Eventhough 195's look and ride good on Ignis, I think the amount of pressure levied on the sidewalls where the tire touches the rim during turns at high speed will be immensely high and, if the vehicle is fully loaded, it could be risky.

Technically, 185/65 = 195/60 except the width is lower by 10mm. So, you can think of 185's.
Some have pointed out that on 185/65, the vehicle was bouncy, however on 195/60, its ride quality improved. Technically, wrt Height, both these tires are of same size except a 10 mm diff in width and this cannot be attributed to such stark difference in ride quality. I think, the brand of the tires and the tire pressure could be the reason for such bouncy ride.

Between 175/65 R15 & 185/65 R15, the difference in height is 12mm, which attributes to 6mm at top and 6mm at the bottom. So,the wheel well difference is just 6mm over stock tires and i don't think it would cause any issues. But you have cut your tire pressure by 2-3 over stock recommendations, for a bit of plush ride.
Remember, your speedo error will be +2% with 185/65 R15's.

[driver52001]

Because of the 5J rim the Ignis presents a very peculiar problem for upsize. 185/60 lowers diameter and GC, not sure if anybody wants that. 185/65 raises an already tall boy even taller, makes it wobbly. I also had Yoko E1 185/65. Highway stability suffered, there was good sideways movement during normal speed straight line lane change. I wouldn't recommend this upsize. Maybe the only solution is to keep stock size but get a super premium soft, stickier rubber. Conti UC6 in stock size would do well. Can change the car's behaviour drastically from the rock solid stock Ecopia. I am now running 175/65 UC6 and it's quite good - grip, noise, etc all good. Not going to experiment anymore.

[ssadwelkar]

After 4.5 years and 34000 kms my Ignis Alpha AMT, the original Ecopias had almost worn out and rubber had become hard resulting in a rough ride and increased road noise.

After considering MRF, JK and other brands decided on the Yokohama Earth-1 E400, with an upsize to 195 60 R15, production dates of 0623 and 0523, replaced only 4 tyres and added the Sensairy TPMS to the 4 wheels, retained the Ecopia 175 65 R16 as spare as it was in fairly good condition. Paid Rs 6000/tyre.

The new Yokos have made a world of a difference, ride has become silent, braking has improved and road handling has improved, I have used the original Rims, there is no bulging, tyres look meaty and awesome compared to the puny 175 65 R15, the stance has improved.

Doesn't seem to have affected the FE, but only a long drive will decide that, similarly have yet to check for speedometer speed mismatch because of the upsize.

[ssadwelkar]

Originally Posted by YakubKC

Considering that I have a roof box on my car and therefore, some additional weight/luggage on top, what size do you suggest i choose?

Hi YakubKC, can you tell me from where and how much you paid for the rooftop box? Did it come with mounting brackets for Ignis?

[YakubKC]

Originally Posted by ssadwelkar

Hi YakubKC, can you tell me from where and how much you paid for the rooftop box? Did it come with mounting brackets for Ignis?

The roof box was sourced from an accessories shop in Bangalore and cost me approximately Rs. 33,000 back in 2022. This included the cost of the box and the cross bars. Hope this helps.

[divinay]

Originally Posted by driver52001

I am an accidental connoisseur of Ignis tyres Have used 2 options - 185/65/R15 (Yoko Earth 1) and 195/60/R15 (Conti UC6). Here are my observations.

The 185/65 increased ground clearance quite a bit and under heavy load, the rear wheel wells were uncomfortably close to the tyres. The handling seemed a bit wobbly. I wouldn't recommend 185/65 for the already high GC Ignis.

Before a 6,000-km 7-state trip, I swapped to UC6 195/60. The handling was excellent. The car stayed glued to the road in high speed, and lane changes didn't make me nervous. Everything felt predictable. Ride cushioning also improved. The thuds didn't enter the cabin much. 195/60 is the only worthy upgrade for the Ignis.

But, a big but, is that Ignis comes with 5J alloys, and the minimum required rim width for 195 is 5.5J. 6J or 6.5J would be ideal. I noticed that the 195 ballooned out from the rims quite a bit and it seemed the stress on the sidewall would increase over a period of time because of the not-so-ideal rim width for this tyre size. The massive balloon effect made it look like the weight of the car is being supported by that curve and not the whole tyre. Please correct me if this is a misguided observation.

So, am back to stock size, i.e. 175/65/R15 in Conti UC6 and am quite happy. They are grippy and have less noise. Though I feel the car is a bit flighty in high speed compared to the 195, they are much better than the stock rock hard Bridgestone Ecopia 150, which Ignis came with from the showroom.

Bottom line: Don't upsize if the need is not fundamental. Upgrade to excellent, high-quality rubber in stock size.

Any other options?

Yes, aftermarket alloys of 5.5J to 6-6.5J to fit 195/60/R15. But this means an exhausting hunt for acceptable offset and centre bore size (probably the most important aspect) as the stock rims. As people have suggested here, try Swift new-gen alloys. They are probably 5.5J and offset may be different by a miniscule factor. Do check centre bore size though. I have not bothered to do the math or look up now.

Downside of the above option?

Even if do get a good match in aftermarket alloys, the rims - if they are not black - may not look good at all. Ignis and black alloys go very well, in my very subjective opinion.

My Nov 2017 Delta AMT had clocked about 27500 km only but the Ecopias seem to be showing signs of crack on the surface. Having taken it to two different tyre agencies for their views on the tyres, was advised that it would be advisable to change soon. Was even advised to go for wider tyres. Went to NEXA service. Was told that change of tyres would be better and that 185 mm tyre will be most suitable, suggestion was for 185/65 R15. Of course, views of our members made for very timely enriching and helpful reading.

Upsized to 185/65 R15 Goodyear Assurance Duraplus tyres on 3rd June 2023. Got Apr/May manufactured tyres. Wheel balancing and alignment done. Car has also been serviced at NEXA next day. Car is running smoothly with excellent road grip and cornering is also much better. Ride quality is better on rough roads. Steering feel is better too. Stuck to recommended tyre pressure. Car has run about 150 kms in city and highway after tyres were changed. Experience has been good overall. Just thought of sharing my bit with the tyre upsize feedback.

[driver52001]

Originally Posted by divinay

Car has run about 150 kms in city and highway after tyres were changed. Experience has been good overall. Just thought of sharing my bit with the tyre upsize feedback.

185/65 increases tyre diameter and ground clearance in the already tall car. My experience with 185/65 Earth 1 wasn't good. In high speed straight line driving on the highway, when you change lanes, you'll feel body roll, which wasn't there in the stock size. Also, the ride will be very bumpy if you go on bad roads due to less room for suspension travel. Ignis ride is already bumpy and 185/65 worsens it. I feel the only worthy upsize for Ignis stock is 195/60, except the rims are 5J and you need minimum 5.5-6J for 195. Am back to 175/65 in UC6. Have learnt my lesson - don't upsize in Ignis. Instead, go for very good quality rubber in stock size.

[vsrivatsa]

Originally Posted by driver52001

Because of the 5J rim the Ignis presents a very peculiar problem for upsize. Not going to experiment anymore.

Originally Posted by driver52001

I feel the only worthy upsize for Ignis stock is 195/60, except the rims are 5J and you need minimum 5.5-6J for 195. Am back to 175/65 in UC6. Have learnt my lesson - don't upsize in Ignis.

I did the same - upgraded my tires to stock size UC 6 last month. Details of my upgrade added here > (Uptown Red Racer - The Maruti Ignis Delta 1.2L Automatic comes home)

[sushanthys]

Hi all..
I recently changed the tyres on my Suzuki Ignis for the srcond time.
The first change was at around 45k kms.Wanted a broader tyre. As mentioned in various posts above, the size of the alloy(5J) made the upgrade to 195 size a bit dicey.Wasnt sure about 185/65, hence went with 185/60. Bought Continental ContiContact CC6 tyres.
I was happy with my tyre choice.The handling was definitely better.No braking issues. No other complaints as such.But would like to point out 2 things.
- The average fuel efficiency took a hit. It slowly came down from 18.5 km/l and settled at around 16km/l during the usage tenure.
- The spare tyre(175/65)is not of the same profile. On the few instances that I had to use it, there was a definite change in ride quality.Basically, could not use the spare for long periods.
One of the tyres had a side wall tear yesterday. The car is at 90k kms( again 45k kms since the tyre change).The treads had worn down.Decided to change all 4 tyres( heavy rains in Kerala was a factor).
As we might not hold on to the car for too long, decided to change back to stock size tyres.Read through this forum before going to the shop and that reaffirmed my decision.
Went for Yokohoma Earth-1 tyres(Rs.5500 per tyre) 175/65 R 15.The manufacturing dates were 4523 & 0424( 2 tyres each).

[condor]

Originally Posted by sushanthys

Wasnt sure about 185/65, hence went with 185/60.

- The average fuel efficiency took a hit. It slowly came down from 18.5 km/l and settled at around 16km/l during the usage tenure.

Has anyone else used 185/60 R15 as an upsize for the Ignis ? But it's a 4mm lesser GC, and seems to be a little high.



*

If @sushanth found a drop in FE for this size, then what's the drop that folks with 195's find ?

[Sridhar K]

With 195 (Conti UC6), my AMT gives 13-13.5 in city (with average speeds around 18 kmph) and 16-17 odd (Avg speeds 40-50 kmph) on the highway runs with 4 passengers.