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qube

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Posts posted by qube


  1. I think it has something to do with the curvature of the sidewall profile in relation to the width of the tyre and the rim.

    for example if the width of a tyre is wide but the rim is narrower you get a sidewall shape that is greater at the tyre tread than it is at the mounting point on the rim. 

    whereas if you have a taller sidewall profile, you allow for the sidewall to bulge and curve evenly so its more balanced (if that makes sense)

    red - 235 45

    blue - 235 40

    image.png.e1bd6433a813d42295610230a7b6c6da.png


  2. Currently Im running 225 40 18 & 255 35 18 on 7.5" & 8.5" (style 261, 135i wheels)

    it totally depends on the wheel widths!

    fronts if staggered are usually 7.5" --> 215/225 or 8" --> 225/235 with 40 profile

    rears usually 8” —> 245 or 8.5" --> 255 or 9" --> 265 with 35 profile

    I have also run 235 40 18 square on 18x8.5 wheels which seems fine.

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