tire pressure for 21" Avon Cobra Chrome AV91s (120/70/21) | Victory Motorcycles: Motorcycle Forums

tire pressure for 21" Avon Cobra Chrome AV91s (120/70/21)

Discussion in 'Victory General Discussion' started by dginfranklin, Oct 10, 2019.

  1. dginfranklin

    dginfranklin New Member

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    I'm getting conflicting info. 37 psi? 40? Overall load will be over 200 lbs. Thanks in advance, folk
     
  2. BP6666VR

    BP6666VR Well-Known Member

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    37 or 40 it is whatever you prefer & what makes you feel better about the ride...

    the maximum is 55 so if you want to run 45 or 43 PSI then go ahead ...

    The problem I have with 37 is that you gotto watch that it does not go to low, if you up your pressure you not need to watch so closely

    Ha ha ha
     
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  3. slickvic

    slickvic Well-Known Member

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    I run 38 to 40
     
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  4. bikendad

    bikendad Well-Known Member

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    40, always run Cobra's a couple pounds higher than the dunflops.
     
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  5. SupaKaMario

    SupaKaMario New Member

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    I emailed avon today and they said 34/40 I'm a big dude but 34 seems low as hell, im Hesitant.
     
  6. bikendad

    bikendad Well-Known Member

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    I've run Cobra's for years and have great luck all around with 40 on my XC.
     
  7. SupaKaMario

    SupaKaMario New Member

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    Yeah I'm on me 4th set of cobras, second rear chrome is on the way and I've been running 38/42. I guess since I run a tube in the front on my jackpot it won't hurt to try 34 but damn that seems low to me. I'm 6'4" 315lbs. Bobbered jackpot so always 1 up (which is actually 2up weight wise with me alone lol) ill try it and post back
     
  8. slickvic

    slickvic Well-Known Member

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    Don’t do it. 34 is too low. 38 is as low as I would go and considering your size 40 is better. Besides who would recommend a 6lb difference in tire pressure ? Owners manual when all else fails gives you the proper tire pressure.
     
  9. SupaKaMario

    SupaKaMario New Member

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    I feel u on 34 seeming way to low. Can't use owners manual as those specs are for stock Dunlop tires
     
  10. John G

    John G Active Member

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    I like to run all my bikes about 2-3 psi below recommended pressure, particularly my Vegas with the stock tires. The reasons I do this are that first off, it softens the ride a little bit and particularly on the Vegas, I get more feel and surface contact, particularly out of the skinny front tire. Once the tires heat up, you can expect to have a few more psi in them anyway. That’s why they tell you to always check them cold.

    im thinking about changing to Avon’s when I wear the original tires out. The front is almost there. I’ll probably run them at different pressures until I get a feel for them.
     
  11. John G

    John G Active Member

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    I forgot to say, that each tire type has different stiffness etc. I would start with the factory pressures for the dunnies and then drop them a bit and experiment. I’d be reluctant to go up over recommended pressure unless you feel the pressures are too low by the bikes performance, like wallowing in corners etc. too much pressure in a tire will make any bike squirrelly.
     
  12. SupaKaMario

    SupaKaMario New Member

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    Hi,


    Sorry for the confusion. After re-evaluating these pressures and looking at the manufacturers recommendations, we would recommend you run 36 – 38Psi front and 40-42 Psi rear.


    I will also request our fitment guide is updated for this model.



    Regards


    Avon Motorcycle Technical
     
  13. Rollinwind

    Rollinwind Active Member

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    Ive been all over the freeways in the midwest. 40 pounds on this tire. Also got 12k on it and it looks like an E3 with 5k on it. No problems here.
     

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