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Frequent flat tires

2791863
5 months ago

I’m using the Tacx trainer tire.  700x23 inner tube.  Inflating to 110 psi.  Inner tube punctures are from a single, tiny pinhole puncture, but are in varying locations, and ALWAYS on the outer surface of the tube (ie, not a spoke/rim tape issue).  I apply small amount of talc powder to surface of inner tube and inner surface of tire.  I’ve even replaced the Tacx trainer tire.  I’ve used both regular inner tubes as well as thicker “puncture resistant” inner tubes.  I fully deflate the inner tube after each session.  Typically get a flat after 300-400 miles.  More likely to occur after “steeper” rides (ie, greater resistance).  Not temperature related, as the flats occur in cooler weather (50-60 degrees) as well as warmer weather (70-80 degrees).  I do all sessions with trainer well calibrated.

Very frustrating!!!

Any thoughts?

Thanks!!

  • 0 5 months ago

    What is the manufacturer of the inner tube?

  • 0 5 months ago

    The “regular” tubes are Continental.  The “puncture resistant tubes” are YunSCM (bought on Amazon).

  • 0 5 months ago

    My experience is as follows:
    poor compatibility for the pair Taсх Tire + Schwalbe Tube;
    good compatibility for the pair Vittoria Zaffiro Pro Hometrainer Tire + Kenda Tube.

  • 0 5 months ago in reply to Alex Masalovich

    Thanks, Alex.

    Any opinions re: talc powdering inner tube, deflating inner tube after each session, or using 110psi??

    Also, how many miles/hours have you gone without flatting, using your good compatibility combo??

    Howard

          

  • 0 5 months ago in reply to 2791863

    I use the MTB version of the tire, which is 35mm wide, so the pressure is lower than the road version. But in any case, I inflate it a little more than the maximum value indicated on the tire.

    I deflate and inflate the tube every fifteen days. But I not only deflate it, I also press my fingers all around the tire.

    The service life record is almost three years with an intensity of 10-15 hours per month.

  • 0 5 months ago in reply to Alex Masalovich

    Don’t know if it’ll translate over to my road tire/tube set-up, but I’ll give your combo a try.

    Thanks!

  • 0 5 months ago in reply to 2791863

    Hey Alex, 2 quick questions….So far so good with your recommended tire/inner tube combo.  
    1.  I’ve noticed that the Kenda tube can be VERY slow to manually deflate.  The core tiny rubber ring on the inside end seems to shift??  Is this an issue with removable cores in general?  Or just with the Kenda tubes??

    2.  Do you add inner tube sealant to the Kenda to further extend “no-flat time”??  I haven’t done that as of yet, but wondering if you’ve tried this.’

    Thanks!

  • 0 5 months ago in reply to 2791863

    Hi!

    1) I have never experienced the slow manually deflate problem. Maybe because I have a different model/size of tube.

    2) I have not done any experiments like that.