I’ve been monitoring it for a few days. I carry a small portable air compressor and the digital gauge on it consistently shows the pressure being around 2-5 psi lower.

It seems the front tire loses air slightly faster than the rear but I can’t confirm that yet.

It seems I have to top up both tires before every ride now. I do around 80-150km per ride and measure inside a my garage before riding.

Should I be concerned? Is this normal? What has been your experience? Put my mind at ease one way or another 🤪 I just want to ride safely.

    • CarbonatedPastaSauce@lemmy.worldEnglish
      9·
      2 个月前

      Yeah what he said. Your bike tires should hold pressure over a season. I have to add air to my motorcycle tires maybe twice a year.

      That being said, I wouldn’t count on the gauge on a shitty compressor to be accurate. Get yourself an accurate tire pressure gauge and check it over a couple days without riding it in between to make sure it’s really losing pressure sitting still. If it is, fill it up and take it back to the dealership and tell them to fuckin’ fix it! And don’t let them ‘fix’ it by putting slimy sealant in your tires. That shit is a mess to clean up when you do a tire change, and it’s just a band aid. You want to know if they sold you a bike with defective rims or tires, basically.

      • TexasDrunk@lemmy.world
        4·
        2 个月前

        Nothing to add, but I feel like this comment (especially the last line) is important enough to second.

        I generally have to add air when the weather changes but that’s it. Winters are mild enough here that I can ride unless it’s storming.

      • PerogiBoi@lemmy.caOP
        2·
        2 个月前

        To be honest, I have used 3 different tire gauges throughout the time as well so that very well could be it. One for a car air compressor, one for a portable compressor, and the cheapest possible manual pencil gauge I could find.

        I’m going to order a proper digital one.

        • dual_sport_dork 🐧🗡️@lemmy.worldEnglish
          5·
          2 个月前

          Get your proper digital one and use it exclusively. Consumer tire gauges are basically never calibrated consistently, especially mechanical ones, and you’ll drive yourself nuts getting all different readings from different gauges, none of them agreeing with each other even though they’re all measuring the same thing. Down that road lies madness.

          The pencil gauges in particular are uniquely terrible, and are tantamount to random number generators. Find all of yours and throw them away.

          As others have said, your tires should not be losing air that fast. You probably have something wrong with one or both of your valve stems, or the beat seat if your tires are tubless. I dutifully check my tire pressure before, er, well… most rides, like the MSF manual told me all those years ago. Many rides. Okay, certainly before some rides, occasionally.

          I have seven (7) bikes in my stable right now. (They’re the ones in the header image in this very community.) I have to add air to the tires in each of them once, maybe twice per season at the outside. If you’re having to do it every day, something is wrong.

        • CarbonatedPastaSauce@lemmy.worldEnglish
          1·
          2 个月前

          Having to put air in your tires weekly is not normal. Something is wrong with your tires or rims.

          Like I said, I put air in my tires a couple times a year (on two bikes), always air up at end of winter and usually sometime in the fall for a top up of a couple PSI, but I check the pressure monthly (except during winter) and they are fine.

  • Aussiemandeus@aussie.zone
    1·
    2 个月前

    Nah shouldn’t lose air over a couple days as everyone else has said.

    Fill a spray bottle with soapy water and spray around the valve stem and bead (where the tyre meets the rim) look for bubbles.

    Or check it then don’t check for a week and check again and see if it’s a bigger lose.

    You will feel low pressure tyres when riding especially in corners.

  • anton@lemmy.blahaj.zone
    1·
    2 个月前

    Just test without opening the valve either by pinching the tire with your hand or by putting your weight on it to see the deformation. Do this after topping up to get a baseline and once you think you lost pressure.

    If it actually loses pressure you can find out where exactly the problem is, by taking the tire out, filling up your sink, pressurizing the tire (not as much as normally, as it is not confined), holding it under water and looking for bubbles.

    • cazzmaniandevil@discuss.tchncs.de
      3·
      2 个月前

      Or use a tiny bit of soapy water instead of the entire sink. Also helps degreasing before applying glue and s patch to the leak.

      Edit:lol thought this was about bike, but now see the motorcycle sub. Still with that big of a tire soapy water might be even more handy 😃

      • anton@lemmy.blahaj.zone
        1·
        2 个月前

        Edit:lol thought this was about bike, but now see the motorcycle sub. Still with that big of a tire soapy water might be even more handy 😃

        didn’t realize it either