What do your run your airhead tire pressure at?

Discussion in 'Airheads' started by mfp4073, Sep 29, 2010.

  1. mfp4073

    mfp4073 Long timer

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    Looked up the manual and didnt find anything. Tires say 42 max. Just got a new rear fender with factory stickers with MUCH lower numbers. So wanted to find out what the consensus was. This is for my 74 /6. Thanks!
    #1
  2. Sniper X

    Sniper X De Oppresso Liber

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    I have heard that modern tyres need their listed pressure, not what the bike calls for. Mine (stock) on my 1978 R100RS are listed on the dashboard, which is cool, but I think they are wrong. I am going to top them off tonight per the tyre sidewall.
    #2
  3. blaine.hale

    blaine.hale Long timer

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    My S fairing tells me 26/29psi (front/rear.) I don't trust that. I usually run 32 normal and 36 with a load on the rear tire. Keep in mind...I'm like a buck 25 at most in weight.
    #3
  4. mfp4073

    mfp4073 Long timer

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    Just to throw this in there, I am about 215 and tires (tyres) are metzler lasertech fronts and metzler perfect ME 77 rear.
    #4
  5. P B G

    P B G Long timer

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    I've kept my front at 30 and rear at 34 for awhile now. That just seems to handle best over all the rain grooved highway I'm forced to navigate. Least weave. I tried lower and higher front and rear, and this seemed to non-scientifically weave less.
    #5
  6. Uncle Pollo

    Uncle Pollo Long timer

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    I am 220 full geared and run the same pressure.
    #6
  7. dduelin

    dduelin Amazing grace how sweet the sound....

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    32-34 F 36-38 R
    #7
  8. hardwaregrrl

    hardwaregrrl ignore list

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    32/34. Minus 7 if i'm off road...
    #8
  9. El Hombre

    El Hombre Banned

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    My S fairing didn't have the tire pressure decal and you can't, as far as I know, buy another. Lawyers and all that. 26/29 sounds about right for 35 year old specs. I run 33/38, but I'm a fat ass.

    I used the 10% rule to get those. Reg Pridmore told me to run around 29 or 30 front and back if I was to take one of his schools. More grip according to him.
    #9
  10. Max Headroom

    Max Headroom lost in the '70s

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    Haven't checked the availability lately, but I bought my "S" fairing stickers from Motobins some years ago without any difficulty.
    #10
  11. motu

    motu Loose Pre Unit

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    I run 20 front and 25 rear with my K70's and love it.I used recommended pressures on the normal road tyres - 32 and 36.I fitted a Spitfire to the rear earlier this year and found my chicken strips went from 10mm to 20mm...it seems to be a rounder tyre.I'm not so confident on these tyres.

    A couple of weeks ago after not riding the bike for several months,I went out,and after getting the feel of the bike again got into the zone and was pushing the bike hard,I felt the most confident on the bike with these tyres ever.Getting home I found I had no chicken strips at all,it was right down to the edge.I was suspicious,and checked the rear tyre pressure - 8psi !!!

    It appears I'm very tolerant of low pressures...and high pressures feel greasy to me.Maybe riding trials bikes at 3 or 4 psi for 30 years has distorted my perception.
    #11
  12. boxerboy81

    boxerboy81 Stay Horizontal

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    R100RS
    36fr
    38r
    ..for over 20- years.
    #12
  13. Beemerboff

    Beemerboff Long timer

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    I ran my Macs on my /7 at 32/ 36, but the Lasertechs are fine 4/5 lbs less, and this is the pressures the suspension was designed to work with.

    The Distanzas on the other bikes are fine at 26 /30 but that is a compromise for dual sport use, although the only real drawback is a little scalloping on the front - handling is great.
    #13
  14. jtwind

    jtwind Wisconsin Airhead

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    I'm surprised at the wide range folks are running street tires at. I'm usually at 30-32 front 32-34 rear.
    #14
  15. BrianK

    BrianK F'in' half ass lookie boy

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    Ditto, JT.
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  16. Jasper ST4

    Jasper ST4 Guest

    32f/34r on Lasertecs.
    #16
  17. mark1305

    mark1305 Old Enough To Know Better

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    I'm usually at 30-32 fr and 32-34 rear. That seems to be the best compromise between best wear and best traction.

    For offroad excursions on loose surfaces I air down to about 21-22 psi (no rimlocks, or I could go down to around 18 or so). I always have air with me to air back up when returning to pavement and minimize heat buildup at road speeds. Tip of the day: Locate your 12V receptacle and your pump where you can get to them without unpacking anything on the bike. DAMHIK. :D

    To the poster who intends to run the pressure listed on the tire: That is the max safe pressure for the max rated load. Tires inflated to the limit tend to give up a significant amount of traction as the contact patch is reduced at the higher pressures. Don't find out the hard way.
    #17
  18. Touchthewindrider

    Touchthewindrider Touchthewindrider

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    Dunlop 220s front 27 rear 27

    84' R80RT

    What kind of mileage are you getting on those 32/36 psi tires?
    #18
  19. danedg

    danedg Horizontally Opposed

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    Bridgestone S11...front and rear. I got great mileage out of these tires. I run 'em 4 pounds less than max......

    [​IMG]
    #19
  20. carpetburn

    carpetburn Been here awhile

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    BT45s front and rear 34 and 38
    #20