Author Topic: 120/70-R19 front tire?  (Read 6907 times)

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  • Offline DEMBONES

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    Offline DEMBONES

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    120/70-R19 front tire?
    on: Mar 30, 2020, 04.49 pm
    Mar 30, 2020, 04.49 pm
    Has anyone tried this size versus the OEM spec 110/80-R19?  I have a line on a very good sale priced tire but only available in the 120/70 size.  I definitely want this to be safe.   :187:

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    Offline DEMBONES

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    Re: 120/70-R19 front tire?
    Reply #1 on: Mar 31, 2020, 11.55 pm
    Mar 31, 2020, 11.55 pm
    over 60 views and not a single answer?  Guess I can assume this is not a popular modification.  I would have thought that someone would have tried it since the BMW GS moved up to this size front and more tires suddenly became available for it.

  • Offline Fastvan61

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    Offline Fastvan61

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    Re: 120/70-R19 front tire?
    Reply #2 on: Apr 01, 2020, 09.47 am
    Apr 01, 2020, 09.47 am
    Hi Dembones not tried this but as we're in lockdown I did a quick google Search and found www.denniskirk.com with lots of useful tyre/wheel rim info and the 2.5" rim on the crosstourer will take a 120 profile safely. I suppose it comes down to clearances to forks, mudguard etc. I believe BMWs run 3" front and 4.5" rims (off this forum) hence the difference. Quick calc suggests it'll drop the front about 4mm. If you go for it let us know how it goes and rides! 👍

  • Offline mzflorida

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    Offline mzflorida

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    Re: 120/70-R19 front tire?
    Reply #3 on: Apr 01, 2020, 12.18 pm
    Apr 01, 2020, 12.18 pm
    I'll copy and paste and put it on the VFR Facebook forum.  Hopefully, somebody there can answer in a way that gives you confidence either way.  Wondering if you would have to adjust the forks through the triple in order to maintain geometry. 
    Last Edit: Apr 01, 2020, 12.23 pm by mzflorida

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    Offline Superjeap

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    Re: 120/70-R19 front tire?
    Reply #4 on: Apr 01, 2020, 01.05 pm
    Apr 01, 2020, 01.05 pm
    well... didnt want to start the discussion just like on the rear wheel treads, just to save a few $  :027:

    My thoughts: you can tweak and alter a lot of parts and things on your bike, but never on things that will impact your safety immediately 
    A wheel that is not suited for the rim is one of those parts.

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    Re: 120/70-R19 front tire?
    Reply #5 on: Apr 01, 2020, 05.42 pm
    Apr 01, 2020, 05.42 pm
    Thanks guys...you all have some good thoughts/ideas on the subject.  I wouldn't normally mess with a tire size but was sure I had seen some members post they had run this tire w/o any problem.   :187:

  • Offline mzflorida

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    Offline mzflorida

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    Re: 120/70-R19 front tire?
    Reply #6 on: Apr 01, 2020, 08.10 pm
    Apr 01, 2020, 08.10 pm
    Dembones, all sorts of responses over on Facebook if you are interested. 

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    Offline DEMBONES

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    Re: 120/70-R19 front tire?
    Reply #7 on: Apr 01, 2020, 10.14 pm
    Apr 01, 2020, 10.14 pm
    *Originally Posted by mzflorida [+]
    Dembones, all sorts of responses over on Facebook if you are interested.

    I don't have/use FB.  What's the consensus?