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  1. #1
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    2013 epic forks(rockshox)

    I'm putting this up as it might help someone,i've had the bike a year and love it,i set the air in the forks to 120psi,on the forks is wrote between 120-135,been riding it like that for a year,on rough ground it was bouncy and through rough turns the front grip was never great,i run 24 psi in my front tire.I dropped the psi down to 90,wow,its like a completely new bike,front is top class and through rough ground its not bouncing of the bumps its just absorbing them,massive difference down fast rough ground,I weigh 190lbs.Reason i never changed it before is i though that's the way epics were,rockshox psi levels are way off.
    Last edited by bruce219; 10-05-2013 at 11:57 AM.

  2. #2
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    2013 epic forks(rockshox)

    What was the PSI on the fork?
    2013 Epic Comp 29er
    2014 Stumpjumper Evo HT
    2011 Langster
    2011 Roubaix

  3. #3
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    Psi was 120 but now is 90.

  4. #4
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    2013 epic forks(rockshox)

    Thanks I am about 205 and running my fork at 130 so I will lower it and see what happens
    2013 Epic Comp 29er
    2014 Stumpjumper Evo HT
    2011 Langster
    2011 Roubaix

  5. #5
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    I weigh 175 and dropped mine down to 80psi, it really helped out. If you have a Dual Air RS a better solution is to raise the pressure back up, then put in the same amount of air in the negative (bottom) chamber. I now run 120/120 and it feels better than it did at 80psi.
    Blur LT & Highball

  6. #6
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    Mine has only one chamber

  7. #7
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    Quote Originally Posted by Scottesq View Post
    Thanks I am about 205 and running my fork at 130 so I will lower it and see what happens
    Let me know how you get on,my brother has a 2012 expert and he lowered his too
    90 and 115 in the other chamber,different forks than ours,he weighs about 220.
    He loves it.

  8. #8
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    Quote Originally Posted by Porch View Post
    I weigh 175 and dropped mine down to 80psi, it really helped out. If you have a Dual Air RS a better solution is to raise the pressure back up, then put in the same amount of air in the negative (bottom) chamber. I now run 120/120 and it feels better than it did at 80psi.
    Double chamber is better ran with 15 psi more in the bottom than the top,more plusher ride and 120psi is way too hard for a 175lbs rider

  9. #9
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    My '13 Epic Expert has one chamber also due to Brain function. I weigh about 165Lbs and recently changed to about 88psi. All the years I thought higher PSI was better to keep the fork firm, but boy was I wrong!
    Since I live in AZ, it's mostly hard packed dry trails and gravels here. Keeping it little less PSI, I get to use the fork for more travel and softer. I also lowered my tubeless to 30psi which helps.

  10. #10
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    Quote Originally Posted by goahead View Post
    My '13 Epic Expert has one chamber also due to Brain function. I weigh about 165Lbs and recently changed to about 88psi. All the years I thought higher PSI was better to keep the fork firm, but boy was I wrong!
    Since I live in AZ, it's mostly hard packed dry trails and gravels here. Keeping it little less PSI, I get to use the fork for more travel and softer. I also lowered my tubeless to 30psi which helps.
    For all MY13 Rockshox changed from dual air to single air as (according to their PR) most people didn't get dual air and it was simpler to remove. It is nothing to do with the Brain, that is a separate function on the damper leg.

  11. #11
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    Values on the fork are recommended, based on some worse case scenarios so someone doesn't kill the fork (particularly if they end up injured due to it) in the first couple of rides then come back to the manufacturer and start blaming them (similar to recommended tyre pressures).

    Personally, I set via sag for the first ride (though my sag marks are out on my 2013 brain fork, as it seems to have 108mm travel instead of the 100mm it's supposed to have, so had to do it the old way with a tape measure), then ride where I know I'm working it the most, see where the tell tail ends up, and adjust accordingly so I'm using about 90 to 95% travel with a little in reserve for a screw-up, then don't really play with it again no mater where I ride, keeping the setting I ended up with.

    On my old SID XX WC's I was running before the new 2013 epic, if I extrapolated off what the recommended was, I should have been on 150 PSI (I was heavier then, but still), and ended up down at 110 using the above (could have dropped a little more, but it seemed to make the front feel like it was wallowing on turns if I did). It was a dual air one, so it also had adjustable negative, and I found my person preference was to run that 10% higher than the main chamber (just because it felt to me that it handled small bumps better that way). of course, with the trend to dumb everything down setting wise, rockshox has since dumped the adjustable negative, so have to live with the settings from where the pass through valve is positioned instead.

  12. #12
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    2013 epic forks(rockshox)

    At 205, I have settled on 110-115 as my ideal pressure.


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    2013 Epic Comp 29er
    2014 Stumpjumper Evo HT
    2011 Langster
    2011 Roubaix

  13. #13
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    well im about this on good days 216Lbs to 220lbs i flux between 98-100KG i should probably not have 90PSi in the front?

  14. #14
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    Quote Originally Posted by PekkaS-works View Post
    well im about this on good days 216Lbs to 220lbs i flux between 98-100KG i should probably not have 90PSi in the front?
    You would definitely need more psi than 90

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