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  • ev tires.. diff sizes?

    From August Abolins@1:153/757.21 to Kurt Weiske on Sun Feb 1 09:41:00 2026
    Hello Kurt!

    What bothered me were the tires. No spare, different sizes on the front
    and back, and one manufacturer in that size. the tires were around $250
    a corner and wore out in 25-30K miles.

    Never heard of cars having different tire sizes for front and back.

    Did yours have 19" at the front and 20" at the back?

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  • From Rob Koliha@1:3634/56 to August Abolins on Sun Feb 1 11:31:29 2026
    What bothered me were the tires. No spare, different sizes on the fr
    and back, and one manufacturer in that size. the tires were around $
    a corner and wore out in 25-30K miles.

    Never heard of cars having different tire sizes for front and back.
    Did yours have 19" at the front and 20" at the back?

    BMW does staggered setups on a lot of cars, where the width of the back tires is greater than the front. In addition, they have some cars (like the M2 CS) that have different sizes on front and back (and widths). M2 CS has 19 in the front and 20 in the rear. I had an X3 M40i. 20" all around but staggered and directional summer runflats. Can't rotate, 15-20k miles tops out of each tire, and after labor and all $2250-2500 for a set of tires.


    Rob

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  • From Kurt Weiske@1:218/700 to August Abolins on Sun Feb 1 09:32:28 2026
    August Abolins wrote to Kurt Weiske <=-

    Never heard of cars having different tire sizes for front and back.

    Did yours have 19" at the front and 20" at the back?

    155/70R19s in the front, 175/60R19s in the back. Wear out in around 24K
    miles, and they're around $250 each.



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  • From Mike Powell@1:2320/105 to AUGUST ABOLINS on Mon Feb 2 10:03:15 2026
    What bothered me were the tires. No spare, different sizes on the front
    and back, and one manufacturer in that size. the tires were around $250
    a corner and wore out in 25-30K miles.

    Never heard of cars having different tire sizes for front and back.

    Did yours have 19" at the front and 20" at the back?

    I have a 1993 Dodge Dakota pickup that has the same size tires all around,
    but calls for the fronts to be inflated to 5 PSI less than the rears. This
    is the first, and only, vehicle I have owned that did that.

    Mike


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  • From Kurt Weiske@1:218/700 to Mike Powell on Mon Feb 2 15:31:32 2026
    Mike Powell wrote to AUGUST ABOLINS <=-

    I have a 1993 Dodge Dakota pickup that has the same size tires all
    around, but calls for the fronts to be inflated to 5 PSI less than the rears. This is the first, and only, vehicle I have owned that did
    that.

    That makes sense - if you're loaded to the hilt, you'd need additional
    tire pressure to help support the weight.

    Speaking of which (maybe this should go to AUTOMOTIVE?) I read an
    interesting article. I've had the past few sets of high-mileage tires wear
    out on the outer edges. I thought it was alignment, then realized both inner and outer edges were worn. I kept the tires at the recommended pressure. Apparently the recommended pressure is intended for a fully-loaded vehicle. Driving solo under-loads the tires. I started inflating them a couple of PAI higher and got better life from the tires.


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