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Need new tyres - BMW 225/45s - can I change profile safely?

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Comments

  • daveyjp
    daveyjp Posts: 14,178 Forumite
    Part of the Furniture 10,000 Posts Name Dropper
    225 40 18 now, but were 225 45 17. Do your insurance omapny know this?

    Secondly changing wheels and tyres may only have minimal effect as the suspension may well be set up for a firm ride.

    My last two cars have both had 225/40 17 tyres. One an Audi, the other a Jag. The Jag is a far superior ride as the suspension is tuned for comfort.
  • vaio
    vaio Posts: 12,287 Forumite
    Part of the Furniture 10,000 Posts Combo Breaker
    Wig wrote: »
    or this one perhaps?

    Current tyres
    225/40/18
    Original tyres
    225/40/17

    Your speedo reads 4.2% too slow, you are going faster than you think you are.

    You will need new wheels to put on tyres of R17 or R16.

    OP said OE tyres were 225/45/17 which is just about exactly the same diameter as 225/40/18 so no problems with speedo
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