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2018 Prius Four Touring - Looking for wheel size advice

Discussion in 'Gen 4 Prius Fuel Economy' started by Hybrid Hopper, Feb 20, 2024.

  1. Hybrid Hopper

    Hybrid Hopper New Member

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    Four Touring
    Newbie here...I am due for new tires (again) and have heard confusing info on wheel sizes. This model of course comes with the 17" wheels and has performance tires. The handling is great but I am more interested in a smoother ride. Is there a better tire choice for the 17" wheels or should I downsize to 16" or 15"?
     
  2. Tideland Prius

    Tideland Prius Moderator of the North
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    If you're posting in this subsection, you're also concerned about fuel economy?

    The Touring models do come with a stiffer suspension setup and yeah, the 17" wheels do come with aggressive tyre sizes (215/45R17). That 45% aspect ratio doesn't give much cushioning (but it's good for handling).

    The base tyre size is 195/65R15 if you wish to go that route for maximum comfort (but you still have to contend with the stiffer suspension tune).

    As for tyre choice, go with a "Touring" tyre for something a bit more comfortable (like the Michelin Primacy MX. Goodyear Assurance ComforTred Touring is another).
     
  3. shane jodan

    shane jodan New Member

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    For your car with 17" wheels, transitioning to a tire with a higher aspect ratio can enhance ride comfort without losing too much handling. Look for tires with a lower speed rating, as these tend to have softer sidewalls for a smoother ride. Brands like Michelin and continental offer touring tires designed for comfort. Downsizing to 16" or 15" wheels could also improve ride comfort, but it might compromise handling and braking performance. Ensure the new tires maintain proper load capacity and diameter to avoid issues. Consulting with a tire professional can help find the optimal balance between ride comfort and performance for your vehicle.
     
  4. Doug McC

    Doug McC Active Member

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    Downsizing to smaller wheels just for a little ride comfort seems like a lot of unnecessary expense and hassle (especially since, as has already been pointed out, the suspension is not going to change and will still have the same harshness characteristics). Plus the hit you will be taking on the gas mileage.
     
  5. Mendel Leisk

    Mendel Leisk Luddite

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    Maybe the suspension is the same, 15" vs 17"? Or at least close? Not sure.

    Our '10 Touring came with the 17" (3rd gen) rims, and every winter I switch over to 15" michelin X-Ice, most recently using PIP 15" rims. It is easier on the sunken manholes and what have you, and better mpg to boot. Next time around I met just put on something like Michelin Cross-Climate, and fugedabout the 17s, till trade-in time. If that ever comes...
     
    Doug McC likes this.
  6. Doug McC

    Doug McC Active Member

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    Do you notice any difference in the handling? Assuming, of course, in the “mild” Canadian winters you get in a little high speed sport driving.;) Especially with the high mileage you put on in the winter. ;)
     
  7. Mendel Leisk

    Mendel Leisk Luddite

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    Handling feels about the same. Our touring apparently does have some suspension mods, but still 15” profile tires feel cushier.

    yeah Xmas eve we passed 100,000 kms. Today I noticed it’s around 100,550 lol.
     
    Doug McC likes this.