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Tire size 215 to 225
- Thread starter Ruben Monteiro
- Start date
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- Tags
- tyre
So i am a bit of a noob when it comes to cars, and the i20n will be my first car. Currently i am just trying to calculate the approximate maintenance cost for this car and i noticed that the 225/40R18 tyres are significantly cheaper than the stock 215/40R18 tyres, however it is not clear to me if this wider tyres will just fit on the stock wheels? or if i have to purchase a new set of wheels to fit the wider tyres?
Wheel/Rim size is fine but be sure to check if they might rub. Are you comparing like quality tires or cheapo (brand or type)
Thank you, and yes i have been watching a lot of tyre reviews videos and i have come to realize you should not be cheaping out on tyres, so i have been looking at Michelin PS5 and Continental WinterContact for winter tyre.
How do i know if they will rub?
Until you fit and try you don't but for the difference you are talking about it should be fine, assuming you didn't do other changes like e. g. lowered the car.
The new tire will be 5mm wider on either side and about 6mm "taller" than the original, nothing to be worried about. When new it will cause your speedometer to show slightly less speed than you are actually going but again, nothing to be worried about since all speedometers shows a bit higher speed than the actual.
I'm sure if you search more in the forum , you will find posts and people who already did this switch.
The new tire will be 5mm wider on either side and about 6mm "taller" than the original, nothing to be worried about. When new it will cause your speedometer to show slightly less speed than you are actually going but again, nothing to be worried about since all speedometers shows a bit higher speed than the actual.
I'm sure if you search more in the forum , you will find posts and people who already did this switch.
Mine has the 225/40/18 Goodyear Eagle F1 ASS6 tyres fitted and no issues at all 
- no more noises at low speeds, slightly comfier and quieter are also a bonus
- no more noises at low speeds, slightly comfier and quieter are also a bonusYes, as Robbyvrs writes, I also have the same tyres and there are no negative issues of any sort.
I can assure everyone that no 225 wide tyre will rub. I recently changed my wheels to ones that sit significantly closer to the wheel arches than the standard wheels and even then my 225 wide tyres do not rub at all.
I can assure everyone that no 225 wide tyre will rub. I recently changed my wheels to ones that sit significantly closer to the wheel arches than the standard wheels and even then my 225 wide tyres do not rub at all.
Yes they will fit without any issue - I did this before I changed my wheels. The price of tyres is directly related to how popular that size is - 225 width is much more common, as standard, on cars than 215 (which very few manufacturers fit).
Just to let you know that officially you can only use the following tyres and rims in Slovenia:
215/40 R18 (89)Y 7,5J X 18
T125/80 D15 (95)M 3,5J x 15
These are written in homologation card and if you have any other dimension you could risk a potential failing on technical check.
What you would have to do is to get a TUV certificate from the dealer/Hyundai that 225/40 R18 tyres can be fitted on the original rims and go to homologation office where they would list this dimension to homologation card.
I asked my dealer for the TUV certificate and they said they couldn't get it and also advised against the 225/40 R18 with explanation that the driving would feel awkward. My guess is that they just tried to avoid some extra work or something. And I also wasn't very persistent to try getting that certificate. Maybe someone else would have a better luck.