Question on Upgrading rim and tyre size

[jaspal81]

  On 12/11/2016 at 3:36 PM, Mercury1 said:

I would say you need to think about why you are changing, either way staggered non staggered will not impact the ride much only the size of the rim will.

 

You have consider why you are changing? If cost then yes beneficial using same tyres on all allows you to do tire rotation and better deals. If handing I would given your ride Rim size will have a larger impact then staggered setup (steering feel), if looks then well its subjective.

 

No question is stupid lah, just sharing opinions nia.

 

Anyway

 

1) If I use same tires all around, what should I use for sizing? Currently am on front: 205/50 R17 and rear: 225/45 R17.

Personally I would go with 215's all round, some say use too wide for front will have higher chance of aquaplaning this I cannot confirm. But currently mine is front 225 and back 245 seems great.

 

2) Will it affect my suspension in the long term? Really no effect at all?

 

No effect, in face some rumors on the net say changing to non rft would result in suspension issues (bmw tuned for rft blah blah) but I would dispute this as so many have change no issues.

3) Where do I find the staggered rims for my 120i? BM recommends 215/40 r18 front and 245/35 r18 rear.

 

A number of Bmw owners get the car new and immediately swap for aftermarket, usually you can find the traded in rims at popular shops like Top 93 or sold direct on BMW Sg, if you go really high end brand like vorsteiner they sell staggared but get prepared to pay a fortune. If you really want staggered and 18 just buy a used M sport rim, there are plenty out there.

 

Consider your goal of changing and take the decision from there.

Thanks for taking the time to explain. Yeah I read abt the suspension being affected, that's why I was concerned.

 

I am changing for 2 reasons:

 

1) Aesthetics. I hate the current stock rims.

2) petrol and pick ups. The run flats are heavy and was hoping that even if I can increase to 18 from the current 17, it will be improve the FC and pick ups a bit.

[Mercury1]

In all fairness upsizing the rims will impact suspension marginally as there is less rubber to "cushion" road impact, then again run flats will probably equate to the same having such hard sidewalls compared to non rft. But this is never ending debate.

 

For petrol I don't think you will save much although handling would be better, upsizing rims usually more weight (larger rims are heavier unless you spend loads on some forged rims) and that means more petrol and slower pick up.

 

Then again from 17's to 18's I reckon any impact would be really marginal you probably won't even notice it, the above usually applies to 19's or 20's. In fact I would also go with 18's in your position.

 

Some previous discussion, good luck 

http://www.mycarforum.com/topic/2155400-pros-cons-for-changing-to-bigger-rims/

 

 

  On 12/11/2016 at 3:41 PM, jaspal81 said:

Thanks for taking the time to explain. Yeah I read abt the suspension being affected, that's why I was concerned.

I am changing for 2 reasons:

1) Aesthetics. I hate the current stock rims.
2) petrol and pick ups. The run flats are heavy and was hoping that even if I can increase to 18 from the current 17, it will be improve the FC and pick ups a bit.

 

[merc280v6]

All else being equal, upsizing from stock rims (by more than 1-2") will usually:

- increase petrol consumption (higher unsprung weight)

- slower acceleration (higher moment of inertia and unsprung weight ... factor of 3 (pi) ... i.e., 20kg heavier rims = 60kg increase for the turning moment to work on)

- harsher ride due to stiffer sidewalls of lower profile

- noisier ride due to increased rubber to road contact

- higher safety risk of aquaplaning

- more costly tyre replacements

- better turn in

- nicer aesthetics (for some)

[jaspal81]

  On 12/11/2016 at 4:14 PM, Mercury1 said:

In all fairness upsizing the rims will impact suspension marginally as there is less rubber to "cushion" road impact, then again run flats will probably equate to the same having such hard sidewalls compared to non rft. But this is never ending debate.

 

For petrol I don't think you will save much although handling would be better, upsizing rims usually more weight (larger rims are heavier unless you spend loads on some forged rims) and that means more petrol and slower pick up.

 

Then again from 17's to 18's I reckon any impact would be really marginal you probably won't even notice it, the above usually applies to 19's or 20's. In fact I would also go with 18's in your position.

 

Some previous discussion, good luck

http://www.mycarforum.com/topic/2155400-pros-cons-for-changing-to-bigger-rims/

Thanks. Which are better tyres? Michelin PS4 or Pirelli P0?

 

Any recommendations?

 

Maybe it's best I stick to 17 but switch rims and tires to non RFT.

[Mercury1]

If you like better handling and sacrificing a teeny bit of comfort I would definitely go with the 18's but check with your follow 1 series drivers, I have 18's on my current and previous 3 er comfort was never an issue, tyre cost also manageable. As I said sacrifices would be marginal over benefits.

 

I always second Michelin tyres, had a PS3 superb stuff, would imagine the PS4 be better. Never tried Pirelli's so its biased opinion.

 

 

  On 12/12/2016 at 3:33 PM, jaspal81 said:

Thanks. Which are better tyres? Michelin PS4 or Pirelli P0?

Any recommendations?

Maybe it's best I stick to 17 but switch rims and tires to non RFT.

 

[Kalebee]

Hi guys,

 

I got some question about rim and tyre.

 

Lets say a stock tyre and rim is 170/70/14. But if I were to change to 205/45/16, will it affect my fuel consumption?

 

From the tyre calculation I got a deviation of 1.6% from stock size. and speedometer is off by probably 1-2%. Not too sure about fuel consumption as I often heard larger rim tend to consume more petrol.

 

[Roberttan]

  On 12/22/2016 at 9:36 AM, Kalebee said:

Hi guys,

 

I got some question about rim and tyre.

 

Lets say a stock tyre and rim is 170/70/14. But if I were to change to 205/45/16, will it affect my fuel consumption?

 

From the tyre calculation I got a deviation of 1.6% from stock size. and speedometer is off by probably 1-2%. Not too sure about fuel consumption as I often heard larger rim tend to consume more petrol.

first of all , always share those tire/ wheels size is for what type of car, make it easier for advices or sharing infos

base on 175/70/14 common tire conversion is 205/50/16 , now have size 195/50/16 and 185/55/16 which is closer conversion

Don't have to over worry about speedometer reading if you want to upsize your wheel

[Chucky2007]

  On 12/12/2016 at 3:33 PM, jaspal81 said:

Thanks. Which are better tyres? Michelin PS4 or Pirelli P0?

 

Any recommendations?

 

Maybe it's best I stick to 17 but switch rims and tires to non RFT.

I think new design Pzero will give better steering feedback as Pirelli has always have stiffer side walls. New and old generation are all call Pzero. Gotta check the website and know the tread design to differentiate

  On 12/12/2016 at 3:41 PM, Mercury1 said:

If you like better handling and sacrificing a teeny bit of comfort I would definitely go with the 18's but check with your follow 1 series drivers, I have 18's on my current and previous 3 er comfort was never an issue, tyre cost also manageable. As I said sacrifices would be marginal over benefits.

 

I always second Michelin tyres, had a PS3 superb stuff, would imagine the PS4 be better. Never tried Pirelli's so its biased opinion.

I have used Pirelli tyres but not Michelin tyres. So far the grip on the Zero series tyres has been good, but not quiet and not comfortable, but great steering feedbacks

  On 12/22/2016 at 9:36 AM, Kalebee said:

Hi guys,

 

I got some question about rim and tyre.

 

Lets say a stock tyre and rim is 170/70/14. But if I were to change to 205/45/16, will it affect my fuel consumption?

 

From the tyre calculation I got a deviation of 1.6% from stock size. and speedometer is off by probably 1-2%. Not too sure about fuel consumption as I often heard larger rim tend to consume more petrol.

I've not heard of 170/70-14 tyres.. seen 165, 175,185, 195 tyres.. difficult to get these 170/70-14 ? An increase of 205-170=35mm extra width each tyre definitely will increase rolling resistance therefore increase FC, but you will have a more planted ride. But have to check that the rims that you mounted these 170 width tyres are wife enough to mount the 205mm width tyres Edited December 23, 2016 by Chucky2007

[urbanvoodoo]

Hello. Sorry if i'm hi jacking thread - (looked like the best place to post this question)

 

I just bought a 2017 mazda 3 HB and i'm looking to switch from the default 16 inch rims to 17 inch ones and have some questions:

 

- Is there a list or reliable after market dealers who will take care during installation and ensure no damage will come to the vehicle

- Will the car likely need to be raised because of the wheel size difference? If so will it affect ride and handling performance.

- Lastly, are there any recommended rims/tyres for the car? I"m not looking to spend a bomb. Just enough so that i get reliable, quality products.

 

 

 

Thanks!

 

[Roberttan]

  On 2/14/2017 at 4:44 AM, urbanvoodoo said:

Hello. Sorry if i'm hi jacking thread - (looked like the best place to post this question)

 

I just bought a 2017 mazda 3 HB and i'm looking to switch from the default 16 inch rims to 17 inch ones and have some questions:

 

- Is there a list or reliable after market dealers who will take care during installation and ensure no damage will come to the vehicle

- Will the car likely need to be raised because of the wheel size difference? If so will it affect ride and handling performance.

- Lastly, are there any recommended rims/tyres for the car? I"m not looking to spend a bomb. Just enough so that i get reliable, quality products.

 

 

 

Thanks!

just to share my views

- why you worry the shop will cause damage to your car while changing your tires ?

(you ever had bad encountered ?)

-you car height should remain the same or around the same , if your tires size conversion is base on Car maker or tire maker conversion(this sometime can vary a little)

for your case I will recon 17" will be 215/50/17 base on your stock tire size 205/60/16.

upsize 1 inch will not make lot of diff for comfort but handling will slight improve for sure if you replace the better Quality tire.

- not sure how much is your Bomb cost, if budget is allow(for 17" wheel) they are some Good Quality wheels in the market cost ard $300 each, those cost ard $200 I will only consider as OK Quality wheels.

As for tires generally speaking there are many Good Quality choice like Bridgestone / Pirelli / Michelin / continental etc in the market. 

one thing for me don't let one divert your attention getting the MIJ or EU, they may not better tires to be used here. 

just MHO

[urbanvoodoo]

  On 2/15/2017 at 2:30 AM, Roberttan said:

just to share my views

- why you worry the shop will cause damage to your car while changing your tires ?

(you ever had bad encountered ?)

-you car height should remain the same or around the same , if your tires size conversion is base on Car maker or tire maker conversion(this sometime can vary a little)

for your case I will recon 17" will be 215/50/17 base on your stock tire size 205/60/16.

upsize 1 inch will not make lot of diff for comfort but handling will slight improve for sure if you replace the better Quality tire.

- not sure how much is your Bomb cost, if budget is allow(for 17" wheel) they are some Good Quality wheels in the market cost ard $300 each, those cost ard $200 I will only consider as OK Quality wheels.

As for tires generally speaking there are many Good Quality choice like Bridgestone / Pirelli / Michelin / continental etc in the market. 

one thing for me don't let one divert your attention getting the MIJ or EU, they may not better tires to be used here. 

just MHO

 

 

Thanks so  much for the help. My concern about causing damage is that the AD mentioned to me that if we change tyres and they are not installed properly they could cause damage. I know in general there are risks to take for after market fittings but just want to ensure that i minimize the risk.

[Roberttan]

  On 2/15/2017 at 2:59 AM, urbanvoodoo said:

Thanks so  much for the help. My concern about causing damage is that the AD mentioned to me that if we change tyres and they are not installed properly they could cause damage. I know in general there are risks to take for after market fittings but just want to ensure that i minimize the risk.

my Dear Friend

any thing not installed properly definitely cause damage ,is not just outside can happen to AD too.

so long you follow the Technical specifications you are Fine, and if you go for Quality product that is no reason they can make a negative comment on it.

[Katoh]

Hi all, just bought a 2017 Mazda 6, and will want to change rims straight after getting my new car.

Understand that the stock rims are 17" 5x114.3pcd. Would like to upgrade to 18" or 19"

I really love those rims that are more concaved. I'm looking to change to Advan Racing RS or Rays Gramlight 57Transcend

Both rims have 2 faces.

For Advan racing RS, I prefer the GTR design which the smallest available rim size for 18" is 18" x 9.0J, inset at 22 or 29mm.

What exactly is the inset measurement of 22mm and 29mm? Which one should I choose?

Which tyres are best on these rims? The ideal sizes are 245/35R18, 245/40R18, 245/45R18, 245/50R18, 245/55R18. Which size do I choose?

Will these tyre sizes fits onto the Mazda 6 without rubbing the fenders?

 

And anyone know where I can find these 2 rims and their cost?

- Advan Racing RS 18" x 9.0J

- Rays Gramlight 57 Transcend 18" x 9.0J (FACE-2)

 

And lastly, anyone know the cost for the tyres of these sizes for Michelin PS4 or Eagle F1?

 

[Roberttan]

  On 4/19/2017 at 6:14 PM, Katoh said:

Hi all, just bought a 2017 Mazda 6, and will want to change rims straight after getting my new car.

Understand that the stock rims are 17" 5x114.3pcd. Would like to upgrade to 18" or 19"

I really love those rims that are more concaved. I'm looking to change to Advan Racing RS or Rays Gramlight 57Transcend

Both rims have 2 faces.

For Advan racing RS, I prefer the GTR design which the smallest available rim size for 18" is 18" x 9.0J, inset at 22 or 29mm.

What exactly is the inset measurement of 22mm and 29mm? Which one should I choose?

Which tyres are best on these rims? The ideal sizes are 245/35R18, 245/40R18, 245/45R18, 245/50R18, 245/55R18. Which size do I choose?

Will these tyre sizes fits onto the Mazda 6 without rubbing the fenders?

 

And anyone know where I can find these 2 rims and their cost?

- Advan Racing RS 18" x 9.0J

- Rays Gramlight 57 Transcend 18" x 9.0J (FACE-2)

 

And lastly, anyone know the cost for the tyres of these sizes for Michelin PS4 or Eagle F1?

to share my Personal point of views

first of all you need to know whats your Original tire size ? correct me if I am wrong

your stock size Mazda 6 17inch is 225/55/17 , 2.5 lit is 225/45/19 that's what Mazda fitted on as Original.

so 18inch tire if base on nearest conversion it should go for 245/45/18(very common size) or 225/50/18 (which is not very common but still available).

which tire size to take it boils down to your wheel size particularly the width of the wheel.

if I were you my option will be

7x18 or 75x18 and rim offset btw 40-50mm with 225/50/18 sure no rubbing

8x18 or 8518 and rim offset btw 45-55 with 245/45/18 should be fine base on my calculation

you can always ask the Shop your requirement and concern, I believe a Professional shop will no exactly what your expectation.

for wheels brand

Advan racing you can try YHI they are regional distributor

Rays I think is Stamford tire

beside these 2 brand , they are also some Premium Quality wheels in the Market like MUgen/ enkei / BBS / ATS etc

do google for more info about the wheels

Edited April 22, 2017 by Roberttan

[Mazdarati]

  On 4/22/2017 at 1:46 AM, Roberttan said:

to share my Personal point of views

first of all you need to know whats your Original tire size ? correct me if I am wrong

your stock size Mazda 6 17inch is 225/55/17 , 2.5 lit is 225/45/19 that's what Mazda fitted on as Original.

so 18inch tire if base on nearest conversion it should go for 245/45/18(very common size) or 225/50/18 (which is not very common but still available).

which tire size to take it boils down to your wheel size particularly the width of the wheel.

if I were you my option will be

7x18 or 75x18 and rim offset btw 40-50mm with 225/50/18 sure no rubbing

8x18 or 8518 and rim offset btw 45-55 with 245/45/18 should be fine base on my calculation

you can always ask the Shop your requirement and concern, I believe a Professional shop will no exactly what your expectation.

for wheels brand

Advan racing you can try YHI they are regional distributor

Rays I think is Stamford tire

beside these 2 brand , they are also some Premium Quality wheels in the Market like MUgen/ enkei / BBS / ATS etc

do google for more info about the wheels

17" to 18" seems like no feel and effect in terms of asthetic......why not 19" ?