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CLA250 FWD tire lifetime study

This is a discussion on CLA250 FWD tire lifetime study within the CLA Wheels and Tires forums, part of the Mercedes-Benz CLA Forum category; Have almost 3 yrs of tire wear / rotation data ... thought some might find this info interesting? - stock Bridgestone RE050A RFT 225/40-18 (fab ...

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Thread: CLA250 FWD tire lifetime study

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    jmc
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    CLA250 FWD tire lifetime study

    Have almost 3 yrs of tire wear / rotation data ... thought some might find this info interesting?
    - stock Bridgestone RE050A RFT 225/40-18 (fab date Jan2014)
    - typical freeway / city driving with spirited (>120mph) drives once in a while
    - rotations are wear data based (*not* time nor mileage based)
    - tread data measured to 0.1mm error at the same position (to be consistent)
    - presuming 10/32" down to 2/32" that's about 6.35mm of tread wear
    - plot below shows tread life rate vs time (miles per mm of tread wear)
    - data includes effects from tread wear and one cross rotation cycle

    Interesting takeaways:
    - for this FWD study the front tires wear about 3x faster than the rears
    - the RE050A tires could yield up to 35k miles with proper rotation schedules
    - if the RE050A tires were left in the rear only they could last up to 54k miles or more (!!)
    - the absolute tread wear "rate" seems to slow down as the tire ages (compaction effect?)

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    RSM and pa4ul like this.

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    Regular WhatsoN's Avatar
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    Had the potenza run flat... They are gone at 12'000km

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    jmc
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    Wait a second... 12000km is only 7500mi... wow tough roads or burning rubber all day? :-)

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    Regular WhatsoN's Avatar
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    we have very good roads over here in switzerland that's were all the taxes goes roads made of gold we like to say here....

    I would say 85% of the 12000 km were driven on the Autobahn (max. 120 km/h) ... so i'am very disappointed in the lifecycle of them.

    Have now 19" Continental SportContact 6 non runflat and the ride is better than on the RFTs 18"

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    Quote Originally Posted by WhatsoN View Post
    we have very good roads over here in switzerland that's were all the taxes goes roads made of gold we like to say here....

    I would say 85% of the 12000 km were driven on the Autobahn (max. 120 km/h) ... so i'am very disappointed in the lifecycle of them.

    Have now 19" Continental SportContact 6 non runflat and the ride is better than on the RFTs 18"
    I am very surprised at the high wear rate for your particular set of tires ... may have been compound failure or process error for that batch.
    Although the Michelin PSS is high on my list at replacement time, the Conti extreme contact DW is an interesting option cuz of its mass ... 3 to 3.5lbs lighter per tire of the same size ...

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