Tyre Pressures - Bonneville

Discussion in 'Bonneville' started by Schuey, Oct 16, 2020.

  1. Schuey

    Schuey Senior Member

    Mar 3, 2020
    491
    113
    Midlands
    Morning Peeps,

    Just wanted to check, what tyre pressures you find best for your Bonneville's?

    Thanks.
     
  2. Callumity

    Callumity Elite Member

    Feb 25, 2017
    3,358
    800
    Nr Biggar
    I think you will find most folk are in the 33F 37R ball park, subject to the rider’s own saddle bags.
     
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  3. JtC

    JtC Elite Member

    Apr 20, 2020
    2,720
    750
    New Mexico
    34 front and 37 rear works for me -I'm 200 lbs and have no luggage on the bike.
     
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  4. Schuey

    Schuey Senior Member

    Mar 3, 2020
    491
    113
    Midlands
    Thanks DD for the detailed response, I'm around 73kg and don't carry any luggage, think I might have a little play around with them and hence wanted to gauge peoples opinions on it :)
     
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  5. MadMrB

    MadMrB Elite Member

    Dec 24, 2018
    3,562
    800
    Northamptonshire, UK
    33 front and 38 rear for me, just because that's what it states in the manual, and I've had no reason to change from that :) - I also have standard shocks and the standard Bridgestone BT45 tyres, and I really like the way my bike handles.
     
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  6. Callumity

    Callumity Elite Member

    Feb 25, 2017
    3,358
    800
    Nr Biggar
    This’ll feed your inner spotter
     
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  7. Schuey

    Schuey Senior Member

    Mar 3, 2020
    491
    113
    Midlands
    My Mum's always saying to my wife I need fattening up as well, I blame the gym!! :p
     
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  8. Jadorff

    Jadorff Noble Member

    Apr 14, 2019
    879
    443
    Adelaide Australia
    38front 42 rear works for me. well I am 115 kg
     
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  9. Phill Pounder

    Phill Pounder Member

    Sep 24, 2020
    43
    18
    Derby
    My cars always show higher pressures for extra passengers. My SR400 Yam shows higher pressures for passengers.
    Yet all the bigger bikes I have owned show only one set of pressures.
    Presumably these must be on the high side because elf n safety would rather you overinflate than underinflate.
    So if you are not hefty, and are riding solo, you must be running unnecessarily high pressures.
    We should be told...but I bet we won't be...
     
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  10. Callumity

    Callumity Elite Member

    Feb 25, 2017
    3,358
    800
    Nr Biggar
    Apples and pears. Entirely different tyre construction and between cross ply/bias and radials and hybrids you have different tyre wall stiffness and tread flex. The pressure requirements will vary between different tyres on the same vehicle and nominally similar tyres for vehicles of different weights.
     
  11. Wishbone

    Wishbone First Class Member

    Nov 4, 2018
    865
    643
    Essex UK
    32f 36r works for me 85kg of prime pork:p
     
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  12. Mischa Vladivostok

    Mischa Vladivostok Well-Known Member

    Feb 9, 2015
    234
    93
    Dublin, Ireland
    Even Triumph are not quite sure what to recommend. The T100 2011 manual recommends 33/37, but the 2012 manual recommends 33/41. It's the same bike.

    I had this doubt a few years back. Read in Triumph Rat that people preferred/recommended 33/41, have been running that ever since, it seems a bit better, but it could very well be a placebo effect.

    Oh, and I'm also 73kg. We don't have pies this side of the sea.
     
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