High Load Rated Tyres

  • weedoman
    weedoman
    8 years ago

    Chaps

    Blew side wall on my rear Pirelli Night Dragon over the weekend. I reckon because the load rating is 412kgs. According to the handbook for the dyna the bike is 283 kgs - leaves only 129kgs for the missus and me. We are way over that. Time for a diet.

    In the meantime - any tips on suitable tyres with a higher load rating?

    Cheers

  • speedzter
    speedzter
    8 years ago
    That's pretty damn nasty !
    How quickly did it deflate (or did it have a tube ) ?
    Correct pressure ?
    I would definately take it back for a refund.
    Nothing to do with a low weight rating, that just should not happen.
    The night dragon I have ready to fit is only a 73 rating ( 365 kg)


  • brucefxdl
    brucefxdl
    8 years ago
    good heads up,have been considering night dragons as an option when the time arrives.might have to do a bit more research.is this a known problem or a one off?
  • tussuck
    tussuck
    8 years ago

    I too would be returning it.... At the very minimum they should be inspecting it to see if it was a tyre fault or something external damaging the sidewall.

    The odds are fairly good that you might get a refund given that its the sidewall and not main tread.

  • weedoman
    weedoman
    8 years ago
    It's a "150/80 B 16 M/C 77H REINFTL" - how do you tell if it is tubeless? Can't find online what "REINFTL" means - Reinforced Tubeless maybe?

    This is the third one I've had and have never had an issue. Had it inflated to 45 (cold) before I left home. It didn't give out suddenly - was slow at first then went pretty quick once I realised what was happening.

    It's been bumping around on the back of a tilt tray on its way back from Dubbo so I dunno what condition the tyre it will be in when it gets back. It had deteriorated just going from the pickup point to the hire car place and that was only about 80kms. Might be hard to tell what went wrong.
  • Lundo
    Lundo
    8 years ago

    Does you have a particular dislike for the Dunlops? I am a long long way from having to replace my tyres as I've only done about 3000 k's, but I'm interested in peoples thoughts for when that day comes, or if I end up in the same situation as you. Some sports bikes and tourers don't like mismatched tyres, but I'm still learning how cruisers behave. I'm new to this.

  • perthhog
    perthhog
    8 years ago
    + 1 45psi on dyna Should be more like 35psi bet she's a skater in the wet more than normal anyway lol
  • speedzter
    speedzter
    8 years ago
    The pirelli spec' is 2.8 bar ~ 41psi, so I guess 45 isn't too far off
  • weedoman
    weedoman
    8 years ago

    Here's a pic the tyre showing the split sidewall and the rating (max 50 PSI/412kg cold)

  • paulybronco
    paulybronco
    8 years ago

    Somewhere near to that tear will be a series of numbers......those numbers tell you the year and week of manufacture of the tyre. From what it looks like there has been a failure of the belts in the tyre. Interested to know how old the tyre is....

  • speedzter
    speedzter
    8 years ago

    Spoke wheel, so luckily it has a tube and it didn't deflate instantly.
    Only thing I can think of is maybe the tube had a leak and lost most of it's pressure, then the sidewall failed due to heat.
    The Dragons have such a stiff sidewall, you wouldn't have noticed straight away.

  • tussuck
    tussuck
    8 years ago
    Lucky! I recon 45psi is too high even for two up, but you can verify on the Pirelli website as you can enter your bike into it and they will tell you the recommended psi.
  • speedzter
    speedzter
    8 years ago

    As stated in my post above  rear = 2.8 bar ( = ~ 41 psi)

                                     and the front - 2.1 bar ( = ~ 30 psi)

     

  • beaglebasher
    beaglebasher
    8 years ago
    Was the bike sitting in the shed for a while weedo? I have had similar issues on my boat trailer but it sometimes sits there for 3 months or more and then I inflate the tyres and get 2 or 3 hours down the road and a tyre lets go. The last time it happened it was the wall that let go, 90% tread left. Anybody know what might be happening there?
  • Speedy
    Speedy
    8 years ago
    Tyres detoriate with age.

    An unused spare in the boot of a car, has a limited life.

    I, along with Pauly ... would be keen to learn the age of subject tyre.