Reading Your Tyre Wear: The Next Step

Discussion in 'Suspension help' started by DarR, Sep 23, 2024.

  1. If you're just getting interested in this topic, here's a few quick start-up tips:

    Recap:
    1) Get your Rider SAG right for your weight. Should be approximately 30% of total travel. Look at your bike's travel specifications.
    2) Try to get the Static SAG to 10% of total travel. May not always be possible with a long travel suspension.

    Next up: Setting Rebound and Compression Damping:
    Rebound: Start with no damping and increase it until the front and rear of the bike does not bounce when pushed down.

    Compression requires riding. Add a cable tie to your fork leg and rear shock as a measuring instrument. Normal riding travel should be around 75% of total travel. Avoid a bottom-out when braking hard. From there, you can increase compression damping to your style of riding conditions.

    Plenty of Webpages and Youtube's on both the above.
    --------------------------------------------------------------------------------

    Now we're getting into the heart of this topic: Reading Your Tyres: The Next Step.
    I don't mean what's written on the sidewall.
    I'm referring to tyre wear for street applications only as reading tyres wear for the track is a rabbit hole.
    Tyres represent about 20% of your suspension where they can show you a significant amount of additional information.

    For rebound damping, look at the leading and trailing edge of the thread of both tyres. A trailing edge that's higher than the leading edge is symptomatic of a wheel rebounding too fast. Increase damping. Should the leading edge be higher than the trailing edge, reduce damping. Also, look at 10 & 2 o'clock on the rear tyre for dots which could be indicative of too much bounce. Increase damping.

    For compression damping, look at the 10 & 2 o'clock on the rear tyre for a wave of roughness relative to the center-line. This may be indicative that the tyre is attempting to compensate for a harsh suspension. Decrease damping.

    The above will go a long way in simply helping to tweak rebound & compression damping.
    Reading tyres for pressure and geometry is a different kettle of fish. Further comments will serve to delve deeper into this topic.
     
    • Like Like x 3
    • Useful Useful x 1
  2. Very useful and well timed (for me) post @DarR, thank you:upyeah:
     
Do Not Sell My Personal Information