Trailblazer tyre size




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  1. #1
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    Default Trailblazer tyre size

    The Trailblazer 4x4 comes standard with 18" tyres (265/60/R1 yet the spare is a 16" (245/70/R16). I checked the actual circumference and diameter differences between the two and on the diameter the difference is 26mm (775mm for the 18" and 749mm for the 16"). The manual states that the vehicle must not be engaged in 4wd when a different size wheel is fitted as it can cause damage to the differential. If one suffers a puncture at the rear, is it therefore advisable to fit the spare on the front and use the standard 18" wheel for the back as the rear differential is engaged but not the front differential when in 2wd?

  2. #2
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    I changed my spare tyre for a 265/70/16, the difference in size is +/-2mm between the 18 and 16 inch.

    To my way of thinking, its stupid to have a different size spare.
    2013 Chev Trailblazer 2.8 4x4 auto.

  3. #3
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    Default

    Quote Originally Posted by Malcolmj View Post
    I changed my spare tyre for a 265/70/16, the difference in size is +/-2mm between the 18 and 16 inch.

    To my way of thinking, its stupid to have a different size spare.
    is it easy to fit the 265/70/16 spare wheel under the car? or did you had to do any modifications?
    2015 Chevrolet Trailblazer 2.8 LTZ Auto

  4. #4
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    subscribed... yeah I don't know what they were thinking when they decided on different wheel size for the spare...
    2013 Chevrolet Trailblazer 2.8 LTZ 4x4 MT

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    My girlfriend asked me to whisper 4 special words into her ear... so I said : "Ons gaan NOU braai!"

  5. #5
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    Quote Originally Posted by Raf View Post
    is it easy to fit the 265/70/16 spare wheel under the car? or did you had to do any modifications?
    It was a bit of a struggle as it came into contact with the towbar, but it got there in the end.
    2013 Chev Trailblazer 2.8 4x4 auto.

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