Mph Usa Vs Uk

Discussion in 'Technical Help' started by Stephen E Anderson, May 10, 2020.

  1. Stephen E Anderson

    Stephen E Anderson New Member

    Sep 19, 2019
    14
    3
    Heber City, Utah
    #1 Stephen E Anderson, May 10, 2020
    Last edited: May 10, 2020
    Does anybody have any more info on these speedometer settings?

    I found write up where you can change the speedometer reading.

    Miles/km display

    Toggle Miles/KM display by holding all 3 buttons until speedo displays 1, 2 or 3 (the current choice) press "Scroll" until the desired units are displayed.
    press "set" button to store setting and exit.
    1= km/h 24 hr clock
    2= Mph UK + 12 hr clock
    3= Mph USA + 12 hr clock

    I tried it and sure enough you can change between not only km/h but USA and UK mph.
    My bike speedometer was always about 9% under actual speed. It was set for #2 Mph UK

    After changing it to 3 Mph USA it seems to be accurate now.
     
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  2. Gladtobebackontwowheels

    Gladtobebackontwowheels Noble Member

    Nov 23, 2019
    398
    393
    Dover. UK
    #2 Gladtobebackontwowheels, May 10, 2020
    But an American mile and a British mile are the same!
     
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  3. Stephen E Anderson

    Stephen E Anderson New Member

    Sep 19, 2019
    14
    3
    Heber City, Utah
    #3 Stephen E Anderson, May 10, 2020
    Basically you can change the speedometer settings from UK mph to USA mph.
    I have no idea what the difference would be, but after changing to the USA setting, my speedometer seems to be more accurate.
     
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  4. Stephen E Anderson

    Stephen E Anderson New Member

    Sep 19, 2019
    14
    3
    Heber City, Utah
    #4 Stephen E Anderson, May 10, 2020
    Right! what does this setting do for sure.
     
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  5. thebiglad

    thebiglad Old fart, still riding !

    Sep 25, 2013
    5,067
    1,000
    Central France
    #5 thebiglad, May 10, 2020
    I wonder if it has anything to do with regional requirements eg maybe there is a reg. for some markets that the speedo overreads a bit whereas the USA regulation might require 100% accurate speedo reading ??
     
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  6. MTBskier

    MTBskier Well-Known Member

    Mar 12, 2019
    242
    93
    Las Vegas, NV
    #6 MTBskier, May 10, 2020
    I hope mine is slower than indicated, cause lord knows I don’t ride the posted speed limit....er I mean, I ride exactly the speed limit at all times, yeah that’s it.
     
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  7. Helmut Visor

    Helmut Visor Only dead fish go with the flow
    Subscriber

    Oct 3, 2018
    6,330
    1,000
    Three Counties
    #7 Helmut Visor, May 11, 2020
    Sounds the most plausible, but don't understand why that would cause a difference in speedo reading o_Oo_O
     
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  8. Stephen E Anderson

    Stephen E Anderson New Member

    Sep 19, 2019
    14
    3
    Heber City, Utah
    #8 Stephen E Anderson, May 11, 2020
    This is getting interesting. Just to clarify, my speedometer was reading faster than my actual speed. i.e. when traveling at 60 mph my speedometer would read about 53mph.

    Also, my 2009 Street Triple R does not have a gas gauge, just a fuel light when low. There is a MPG reading on one of the trip screens. Maybe that is the only thing this setting affects. I'll have to match it up with the same GPS I used to discover how far off my speedometer initially was.
     
    • Agree Agree x 1
  9. MadMrB

    MadMrB Elite Member

    Dec 24, 2018
    3,562
    800
    Northamptonshire, UK
    #9 MadMrB, May 11, 2020
    Is one setting nautical miles per hour (knots)?

    1 knot = 1.15 mph, so 53 knots = 60.93mph which is approx the figues quoted.

    I've no idea why you need to know your speed in knots when riding a bike? :confused:
     
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  10. Helmut Visor

    Helmut Visor Only dead fish go with the flow
    Subscriber

    Oct 3, 2018
    6,330
    1,000
    Three Counties
    #10 Helmut Visor, May 11, 2020
    Maybe it's because we're an island nation :joy::joy:
     
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  11. Callumity

    Callumity Elite Member

    Feb 25, 2017
    3,358
    800
    Nr Biggar
    #11 Callumity, May 11, 2020
    The ONLY sensible explanation is in mpg because of the variation between US and Imperial gallons. What troubles me is that DD came up with it first :confused:
     
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  12. MadMrB

    MadMrB Elite Member

    Dec 24, 2018
    3,562
    800
    Northamptonshire, UK
    #12 MadMrB, May 11, 2020
    That's far too sensible.

    I'm sticking with pirate mode ;)
     
    • Funny Funny x 2
  13. Rocker

    Rocker Elite Member

    May 1, 2016
    1,662
    800
    Suffolk
    #13 Rocker, May 11, 2020
    As I understand UK and USA miles were different until standardised in the late fifties but why they are different on a modern bike I no idea
     
    • Informative Informative x 1
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