I’m curious what other folks are doing pressure-wise.

I’m fairly lightweight (70kg, possibly after lunch? With back pack and water, who knows? I usually carry extra tools, etc…), and run 2.6" 27.5/650b tires.

Rear is around 20psi, but it’s tubeless so I generally catch it once it’s slipped down to 15 or 17 after a few weeks :). I’ve just realized I’m not even sure what the tire is, but it’s a maxxis brand, so probably actually 2.4" wide compared to most other companies - not much clearance on my Intense Recluse

My front is usually about 18psi, on a specialized 2.6" somethingorother (pretty sure it’s not a butcher)

  • gizmonicusMEnglish
    2·
    1 year ago

    Depends. I have a few setups I run.

    Trail bike (Clash 2021) 27.5x2.4":

    • 25/f 29/r for higher consequence trails with lots of rocks and roots. I hate squirmy tires, and the suspension eats up most of the impact.
    • 24/f 27/r for better traction for more of the daily trail ride conditions.

    Jump/SS (Meta HT AM 2020) 27.5x2.8":

    • 18/f 18/r for trails
    • 24/f 25/r for jumps

    On trails, if it’s really slick, I may drop 1-2psi for better traction. Obviously, if jumps are slick, I won’t ride them.

    • flambonksciousOPEnglish
      1·
      1 year ago

      Nice! Thanks for the complete response

      What do you weigh, if you don’t mind me asking?

      I should really weigh my pack and tools…

        • flambonksciousOPEnglish
          1·
          1 year ago

          Wow, that’s some pressure!! I feel down the extra grip rabbit how, but where I ride it’s lots of clay, no rock surfaces, so grip is often a big deal

  • kersplooshAEnglish
    2·
    1 year ago

    About 35 psi on 27.5x2.2" Kenda Honey Badgers. I ride XC in an area with occasional lumpy basalt. It can be pinch flat hell with tubes. Even with tubeless I still worry about denting my rims at lower pressures.

  • DoubleOwl7777@feddit.deEnglish
    1·
    1 year ago

    i do around 30psi. i use tubes as tubeless is just hopeless on the terrain i am riding (tires develop long-ish slices after a few rides that no sealant could ever fix) due to there being sharp rock shards. tires are Continental crossking 29" 2.2. i weigh like 60 or so kg and my bike is like 20-23 (emtb)

  • theMechanicEnglish
    1·
    1 year ago

    If you don’t hear your rim hitting the rocks in the trail, you are probably fine going down. If you go up a lot, you can try higher pressure and see how that feels as it will lower rolling resistance.

    Then find a happy medium depending on how much uphill va downhill you usually ride.

    I’m about 80kg +water and found 24psi to work best for me.