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Thread: m9rr

  1. #1
    2 YEAR PREMIER MEMBER paradoc's Avatar
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    m9rr

    hi guys im thinking of trying thr m9rr for my m-sport 2020 and going to a 190 rear will i have to do anything with the electrices,to tell the bike ive put diffrent size tyres on,cheers

  2. #2
    Forum Moderator Oli's Avatar
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    m9rr

    Great tyres and a great size, I’m sure you’ll be very happy with the decision

    You don’t ‘need’ to recalibrate the ECU, but your BMW dealership can do this for you and I personally would recommend it
    Last edited by Oli; 13th September 2020 at 04:43 PM.

  3. #3
    2 YEAR PREMIER MEMBER paradoc's Avatar
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    Re: m9rr

    cheers oli ,but whats the down side to not getting bmw to recalibrate the ecu,

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    2 YEAR PREMIER MEMBER oldwobbler's Avatar
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    Re: m9rr

    The traction control parameters are set for a 200 tyre. If you change the tyres size you need to let the bike know otherwise your traction control wont work correctly. That could mean it kicks in early, or worse, kicks in late.
    Punctuation - the difference between knowing your shit and knowing you're shit.

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    Oli

  6. #5
    Forum Moderator Oli's Avatar
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    Re: m9rr

    Quote Originally Posted by oldwobbler View Post
    The traction control parameters are set for a 200 tyre. If you change the tyres size you need to let the bike know otherwise your traction control wont work correctly. That could mean it kicks in early, or worse, kicks in late.
    +1, I also think from a matter of principle, that if a manufacturer produces a calibration for a specific tyre size, then why not just recalibrate it ...
    Final point, which is probably me being a bit overboard, but I ‘personally’ feel more comfortable riding the bike with a correct tyre size, as would worry what an insurance loss adjuster would think in the case of a considerable claim

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  8. #6
    2 YEAR PREMIER MEMBER oldwobbler's Avatar
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    Re: m9rr

    I'm loving my M9s btw
    Punctuation - the difference between knowing your shit and knowing you're shit.

  9. #7
    1 YEAR PREMIER MEMBER Schuey's Avatar
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    Re: m9rr

    For those of you who have had these fitted, please explain benefits over the stock K3’s that come with the bike. Thanks.
    2020 BMW S1000RR Sport with Performance Pack (Current)
    2020 Triumph Bonneville T100 (Current)
    2016 BMW S1000RR Sport with Performance Pack (Sold)
    2012 BMW S1000RR Sport (Sold)
    2006 Honda CBR1000RR Fireblade (Sold)
    1999 Honda CBR600 FX (Sold)

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    Forum Moderator alex's Avatar
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    Re: m9rr

    More sea to land, they have more sipes for shifting water, which lets face it is important in the UK. Newer generation of tyre, updated silica blend + profile. Harder centre for more miles.

    K3RR is more track biased, but if you're not on track then why would you want them over a 9R?

    - Alex

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  12. #9
    1 YEAR PREMIER MEMBER Schuey's Avatar
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    Re: m9rr

    Thanks Alex, weighing up my options for when I change these K3’s when they’re done with. I only do a couple of track days per year.
    2020 BMW S1000RR Sport with Performance Pack (Current)
    2020 Triumph Bonneville T100 (Current)
    2016 BMW S1000RR Sport with Performance Pack (Sold)
    2012 BMW S1000RR Sport (Sold)
    2006 Honda CBR1000RR Fireblade (Sold)
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  13. #10
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    Re: m9rr

    Quote Originally Posted by Schuey View Post
    Thanks Alex, weighing up my options for when I change these K3’s when they’re done with. I only do a couple of track days per year.
    I did a couple of track days on the DRC2's from Pirelli which are effectively the same as the M9's...worked well, no moments to speak of.

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