General Another wee question with regards Tyre Sizes Please???

[Wee Jimbo]

Wee Question with regards Wheels Tyres folks. I currently have a refurbished lovely looking Set of 15" wheels and tyres for my 2015 Panda. The Queery I have for all you Experts, is the Following.
The Wheels are 98pcd and pretty sure et30, they were originally on a Chrysler Ypsilon (Basically same setup???) and although they have Tyres, they are infact 185/65/15 of which 2 are brand new and 2 are borderline for being changed. Now according to the Tyre Data for my wee Twin Air, there is infact a table for 185/65 listed as well as 185/55.
My question to all you fine Panda Addicts is, will it be OK to replace the 2 Tyres that are borderline or will I have to go down to the 55series profile, bearing in mind, I understand the higher profile will probably put my speedo reading around 3mph slower than I am actually doing, and the fact that the Higher 65series profile should technically make it a wee bit softer ride than the 55series and perhaps the Height difference may also help with those flippin Speedhumps that wreck all the bottoms of our cars for sure.
I know that the GPS on my phone reads approx 4mph slower than my speedo does at the moment and that is with standard 165/65/14 tyres
Cheers Folks. (Wee) Jimbo.

 

[ZaphodB]

The ET/offset will be stamped on the rim somewhere to confirm.

Different tyre sizes may well trigger ABS/ESP because the car is set for those tyre sizes , it will not be expecting fronts or rears to be rotating differently to the others., so may trigger errors at least temporarily.
Personally I'd always stick to what the manufacturer states when it comes to tyres.

 

[Wee Jimbo]

The ET/offset will be stamped on the rim somewhere to confirm.

Different tyre sizes may well trigger ABS/ESP because the car is set for those tyre sizes , it will not be expecting fronts or rears to be rotating differently to the others., so may trigger errors at least temporarily.
Personally I'd always stick to what the manufacturer states when it comes to tyres.

Thanks for your reply ZaphodB: The tyre options I am relating too ( As shown ) is infact from the Manufacturer Data showing one of the Options in the Tyre Data. The ET stamped on the Rim is 30 (Although it doesn't have ET in front of it). I never thought of the ABS , Perhaps I should try them out on my car first and see if it throws up any errors? like I said, 2 tyres are almost new and 2 are Border line for being changed (Well in my eyes they are, unlike a lot of people , Afraid I like to change them before they get anywhere near to the minimum legal requirements) Hence the reason change 2 or change 4? lol. Cheers pal.

 

[A3jeroen]

I don't understand. You are now on 165/65 14 and want to fit 185/65 15?
Circumference is WAY out. Chick with a tiresize calculator please.

gr J

 

[Pugglt Auld Jock]

I don't understand. You are now on 165/65 14 and want to fit 185/65 15?
Circumference is WAY out. Chick with a tiresize calculator please.

gr J

Starting with the assumption that the wheel/tyre combination will actually fit without fouling anywhere? Then the systems on the car will be "looking" for difference in rotational speeds between the wheel/tyre fitment. If all 4 wheels are rotating at very nearly the same speed I doubt if any of the car's systems will be bothered. Speedo will probably be out though so I would agree that checking rolling diameter would be wise. More than anything though is that all non standard wheel fitments need to be notified to the insurance company - and you might, or might not, get quite a surprise at what a difference it can make to premiums. - Insurance companies can be very "twitchy" about wheel/tyres as they view them as a risk marker for riskier drivers. If you don't notify you may find your cover invalid.

 

[Wee Jimbo]

I don't understand. You are now on 165/65 14 and want to fit 185/65 15?
Circumference is WAY out. Chick with a tiresize calculator please.

gr J

Like I stated earlier A3jeron, I bought this set of wheels which were newly refurbished for my Fiat 500 and just never got round to fitting them (as I already had a set of afternarket alloys on it already) and, 2 of the tyres on the refurbished alloys are brand new, the other two still have a good few miles yet for some folk, but I tend to replace my tyres perhaps a wee bit earlier than others, even though my last set I replaced almost 2 years ago and there was still a lot left in them also.
My question was , as there is a tyre data listing for my Panda, which clearly states as the attachment shows an option of 15" wheels with 185 65 15 tyres, which if giving this option, must surely have been fitted to a Panda model at sometime. Would I get away with just buying 2 new 185 65 15 tyres to match the 2 new ones fitted? or should I buy 4 x new tyres in a different size. I am assuming the higher profiled 65series must surely give a softer ride and perhaps raise the height of the suspension fractionally which would definitely help with those stupid speedbumps that don't appear to make any difference to some folk who just ignore the Speed limits , and the speed bumps, but it certainly would make a difference to all of us who drive small Pabda Sized cars. Cheers pal.....Jimbo.

 

[A3jeroen]

Normal size for a 500 would be 185/55 15.
185/65 15 is probably for a 4x4. Mixing different circumferences on 1 vehicle makes the ABS throw a tantrum at a certain speed.

gr J

 

[Wee Jimbo]

Starting with the assumption that the wheel/tyre combination will actually fit without fouling anywhere? Then the systems on the car will be "looking" for difference in rotational speeds between the wheel/tyre fitment. If all 4 wheels are rotating at very nearly the same speed I doubt if any of the car's systems will be bothered. Speedo will probably be out though so I would agree that checking rolling diameter would be wise. More than anything though is that all non standard wheel fitments need to be notified to the insurance company - and you might, or might not, get quite a surprise at what a difference it can make to premiums. - Insurance companies can be very "twitchy" about wheel/tyres as they view them as a risk marker for riskier drivers. If you don't notify you may find your cover invalid.

Puggit Auld Jock, I totally understand pal, I might just fit them and see how they run for a few days for possible rubbing issues/ Clearance issues anywhere, as well as any issues with My ABS light.
It states that fitting them may show approx 4mph slower on my speedo than I'm actually going.
At the moment with the standard 175 65 14 wheels/tyres fitted my speedo according to SatNav, Is actually reading approximately 4 mph faster than the GPS on my Sat nav lol.
With regards the fitment of alloys, my insurance company have been informed that they are already fitted, they are aftermarket and I have notified my insurance company's of Aftermarket Alloy Wheels since I first started buying them a good number of years ago now pal. lol Cheers Pal... Jimbo

 

[Wee Jimbo]

Normal size for a 500 would be 185/55 15.
185/65 15 is probably for a 4x4. Mixing different circumferences on 1 vehicle makes the ABS throw a tantrum at a certain speed.

gr J

Cheers buddy.

 

[The Panda Nut]

Starting with the assumption that the wheel/tyre combination will actually fit without fouling anywhere? Then the systems on the car will be "looking" for difference in rotational speeds between the wheel/tyre fitment. If all 4 wheels are rotating at very nearly the same speed I doubt if any of the car's systems will be bothered. Speedo will probably be out though so I would agree that checking rolling diameter would be wise. More than anything though is that all non standard wheel fitments need to be notified to the insurance company - and you might, or might not, get quite a surprise at what a difference it can make to premiums. - Insurance companies can be very "twitchy" about wheel/tyres as they view them as a risk marker for riskier drivers. If you don't notify you may find your cover invalid.

Panda 319 are eta 35. ETA 30 is incorrect may be ok as a temporary spare for minimal mileage but not a good idea otherwise. Eta affects the cars footprint and track by enough to matter.In this case 100 or nearlyhalf an inch! This would not be Ok if insurance ever looked. The tyre size will almost certainly fit without fouling on the correct wheels but an eta 30 may actually catch the wheel arch. Panda 319 Cross 4x4 wears 185 rubber BUT The chassis is modified to accomodate this safely. While tempting, I would NOT do this.

 

[varesecrazy]

I don't understand. You are now on 165/65 14 and want to fit 185/65 15?
Circumference is WAY out. Chick with a tiresize calculator please.

gr J

15" wheels at start of thread
(And in pics)

But 14" on the last sentence..

Being a 312.. I suspect it's 15 inches all around

 

[Wee Jimbo]

15" wheels at start of thread
(And in pics)

But 14" on the last sentence..

Being a 312.. I suspect it's 15 inches all around

I stated I am intending putting my 15"Alloys on my Panda, As some have said, it will put my speedo out.
The 14" refers to my currently fitted 14" StandardSteel wheels and my speedo reads 4mph faster than I am doing according to the GPS on my Sat-Nav.

The charts for the 185/65/15 inch alloys that I am intending to fit states , if I fit that size combination (185/65/15) my speedo will read 4 mph slower than I am actually going so therefore in theory, my speed would be 100% correct according to my GPS lol. Sorry for any confusion!!...... Jimbo.

 

[JayAre]

With regards the fitment of alloys, my insurance company have been informed that they are already fitted, they are aftermarket and I have notified my insurance company's of Aftermarket Alloy Wheels since I first started buying them a good number of years ago now pal. lol Cheers Pal... Jimbo

without seeing the precise text of your notification to your insurance company (should be in writing eg email NOT phone conversation) there will be material risk that you are NOT insured - I would under no circumstances take such a risk as the consequences are horrendous

Also, puzzled about what exactly was fitted to the car when you bought it? If aftermarket/non-factory then you are in the exact same position as the 1st para

 

[Herts Hillhopper]

All four tyres must be the same size as each other.

185/65r15 was fitted as standard to the Panda Cross, but with et30 wheels and (as with all the 4x4 models) a section cut away from the subframe.

If yours isn’t a 4x4 (so doesn’t have those cutouts) you will likely foul the frame on full lock.

 

[Wee Jimbo]

without seeing the precise text of your notification to your insurance company (should be in writing eg email NOT phone conversation) there will be material risk that you are NOT insured - I would under no circumstances take such a risk as the consequences are horrendous

Also, puzzled about what exactly was fitted to the car when you bought it? If aftermarket/non-factory then you are in the exact same position as the 1st para

JayAre, Well as you are interested in seeing the precise text of my notification to my insurance company , without revealing any more of my personal info on my Policy, please find attached a little snippet from my Terms of my policy.
Like I have stated previously in my Thread, I have always fitted Alloys to my vehicles (As a personal choice!!!).and I have always notified my insurance companies. After all I'm only a few months from my Retirement date, and as my Insurance is very cheap( Full clean Licence since 1977) in comparison to others who may have only been driving for a few years, so the extra I pay to have my Personal Accessories added is very minimal. Cheers.

 

[JayAre]

as you are interested in seeing the precise text of my notification to my insurance company

absolutely not, nor was this said or implied, it was a qualifier to my observation (the important bit!) that “there will be material risk that you are NOT insured”

because what matters is not whether they are alloys replacing alloys, but the replacement itself with non-factory alloys which is a known major concern of insurers and (probably) top of the list of what they term “material non-disclosure”

Unless you have documentary evidence that you have fully disclosed each and every element of difference and the consequences (including the incorrect speedometer issues and the extent of the speedometer discrepancy, as well as all the other potential issues touched upon by others here) then you are putting yourself in a potentially very bad place where I, and I suspect everyone else here, would not wish to be

Edit to add:
You commented in your OP: “I understand the higher profile will probably put my speedo reading around 3mph slower than I am actually doing” as if this is a trivial matter. It is not. It is illegal to drive a car with an under-reading speedometer. As such your insurer cannot in law have granted approval for your modification which, under the terms of your policy, will have therefore rendered your policy void. Your awareness of this illegal consequence of your modification just makes matters worse

 

[Pugglt Auld Jock]

absolutely not, nor was this said or implied, it was a qualifier to my observation (the important bit!) that “there will be material risk that you are NOT insured”

because what matters is not whether they are alloys replacing alloys, but the replacement itself with non-factory alloys which is a known major concern of insurers and (probably) top of the list of what they term “material non-disclosure”

Unless you have documentary evidence that you have fully disclosed each and every element of difference and the consequences (including the incorrect speedometer issues and the extent of the speedometer discrepancy, as well as all the other potential issues touched upon by others here) then you are putting yourself in a potentially very bad place where I, and I suspect everyone else here, would not wish to be

Edit to add:
You commented in your OP: “I understand the higher profile will probably put my speedo reading around 3mph slower than I am actually doing” as if this is a trivial matter. It is not. It is illegal to drive a car with an under-reading speedometer. As such your insurer cannot in law have granted approval for your modification which, under the terms of your policy, will have therefore rendered your policy void. Your awareness of this illegal consequence of your modification just makes matters worse

Yep. Don't "mess" with insurance companies. The consequences follow you around for years.

 

[Wee Jimbo]

Look Gents, I did not come on here like a child to start arguing about what's right or wrong, but JayAre , it looks like you are trying to prove a point that you know more than anyone else.
You have just stated, "Absolutely not, nor was this said or implied!!!" The next paragraph is taken straight from your comment.

"without seeing the precise text of your notification to your insurance company (should be in writing eg email NOT phone conversation) there will be material risk that you are NOT insured - I would under no circumstances take such a risk as the consequences are horrendous"

Now that In my eyes is both said and implied!!! Like I stated above, I did not come on here to argue about what's right or wrong, or with regards the laws regarding my car insurance, I have been insuring cars since my first car way back in 1977, I simply came on here looking for a wee bit friendly advice to do with a tyre size, but Hey Ho, Thanks anyway.

 

[JayAre]

I… came on here looking for a wee bit friendly advice to do with a tyre size

Exactly. When members reply to requests for advice they want to give it straight, warts+all.
Cars are potentially dangerous things. It helps no-one to hold back on warnings about risks+consequences

 

[Bonefish Blues]

All four tyres must be the same size as each other.

185/65r15 was fitted as standard to the Panda Cross, but with et30 wheels and (as with all the 4x4 models) a section cut away from the subframe.

If yours isn’t a 4x4 (so doesn’t have those cutouts) you will likely foul the frame on full lock.

Certainly they will foul. I run 185/65 15s on my 4x4 and had to fit 5mm spacers up front. Without cutouts, not sure how many mm they'd need to be.