Results 1 to 8 of 8

Thread: Fox 4.0 DHX

  1. #1
    mtbr member
    Reputation:
    Join Date
    Jul 2013
    Posts
    7

    Fox 4.0 DHX

    Hi ye all - does anyone have a table for PSI (bar) to weight for the air pressure configuration?

    Txs

  2. #2
    mtbr member
    Reputation: moefosho's Avatar
    Join Date
    Apr 2013
    Posts
    1,781
    I bet fox does It comes down to frame design as well. Find fox's recommended settings and then adjust either way to get it right.

  3. #3
    mtbr member
    Reputation:
    Join Date
    Jul 2013
    Posts
    7
    Fox actually recommend a range 125 to 200psi and thats the end of it. Txs anyhow

  4. #4
    bikeaholic
    Reputation:
    Join Date
    Aug 2004
    Posts
    686
    Best way to determine appropriate air pressure is to measure sag. This will vary depending on shock, frame, and riding style/terrain, but shooting for 20-30% sag is generally a good baseline:

    Measuring Sag

  5. #5
    mtbr member
    Reputation: Bemiller's Avatar
    Join Date
    Jun 2013
    Posts
    51
    I looked far and wide for this elusive chart and my conclusion - it doesn't exist. Best bet is to measure sag. At 160 lbs w/ gear I have my main chamber at 160 and boost chamber at 165 psi right now after doing minor adjustments for past 3 weeks on new bike.

  6. #6
    mtbr member
    Reputation:
    Join Date
    Jul 2013
    Posts
    7
    Thanks a lot guys - adjusting it via the sag makes perfect sense. Ended up with around 25% sag at 150psi (I'm a bit lighter than you it seems).

    cheers and happy rides this w-e!!

  7. #7
    mtbr member
    Reputation: Bemiller's Avatar
    Join Date
    Jun 2013
    Posts
    51
    Quote Originally Posted by Uzzi Man View Post
    Fox actually recommend a range 125 to 200psi and thats the end of it. Txs anyhow
    You're referring specifically to the boost chamber.

    Main chamber is 50 to 300 psi

  8. #8
    mtbr member
    Reputation: moefosho's Avatar
    Join Date
    Apr 2013
    Posts
    1,781
    Also, I have used a DHX air 4 and had nothing but problems with it. Not a very great shock IMO. I upgraded to the DHX air 5 and it was a huge improvement.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •