Stock tire size or slightly larger diameter?

Discussion in 'Prius c Accessories and Modifications' started by topshot, Jun 28, 2020.

  1. topshot

    topshot Member

    Joined:
    Feb 9, 2017
    68
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    Location:
    Midwest
    Vehicle:
    2015 Prius c
    Model:
    Three
    I have a 2015 c Three with stock alloy wheels that I just measured to be 6" wide (but may really be 5.5" if that is meant to indicate inside the beads, which you can't measure with tires on). She currently has the stock tire size on it, and I'm in desperate need of new tires (I assume they are original with 51K). I don't necessarily have an issue with the OEM size, but it limits the options and if anything I'd like more ground clearance. I'm also OK with slight hit to MPG.

    Looking at Tire Rack, for example, there are only 23 options in stock size vs 41 for 195/60R15, which is 0.2" larger in diameter, or I'd even consider 185/65R15, which is 0.5" larger in diameter and has 42 options.

    It's too bad there isn't a way to tweak some thing in Techstream to keep the odometer accurate, but I'm OK with that too.

    If needing to use the spare, which is significantly smaller than stock, I'll move it to the back if a front tire goes.

    Is there anything I'm not considering if I find a good deal on one of these two larger diameters?
     
  2. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

    Joined:
    May 12, 2018
    3,495
    3,450
    1
    Location:
    Pennsylvania
    Vehicle:
    2018 Prius c
    Model:
    Two
    Stock size for that car is 175/65R15. That's usually a 24" tire, 866 revs/mile more or less.

    I don't think that's going to throw you off that much, in terms of speedometer, odometer or acceleration.
     
    #2 Leadfoot J. McCoalroller, Jun 28, 2020
    Last edited: Jun 28, 2020
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