Too Little Air = Damage?- Mtbr.com
Results 1 to 4 of 4
  1. #1
    mtbr member
    Reputation: iSlowpoke's Avatar
    Join Date
    Feb 2009
    Posts
    340

    Too Little Air = Damage?

    I have a 09 Stumpjumper. I set-up the rear per the Specialized website with the air pressure for my weight. 155lbs @ 140psi. The Brain is at the softest setting. When I ride, it's still too hard for me. So I dropped it down to 85psi which is much better. My question is will too little air pressure not good for the shock? Help a newb out!

    Thanks in advance!

  2. #2
    mtbr member
    Reputation:
    Join Date
    Dec 2007
    Posts
    1,172
    As long as it does not bottom out. Manufacturer recommendations usually are on the firm side, and they are only there to get you started. To get the best setup, ride and play around with different pressures until you find what you're happy with.

  3. #3
    TNC
    TNC is offline
    noMAD man
    Reputation: TNC's Avatar
    Join Date
    Jan 2004
    Posts
    12,059
    Unless you're bottoming too frequently and harshly, it shouldn't be a problem. Main air chamber pressures in shocks can usually be set where they work for the rider. It's in areas like boost valve chambers or other places where an IFP is pressurized that too low a pressure can allow oil or air to bypass the IFP piston...not good.

    I've always felt that the Brain design from Spec is somewhat harsh on their bikes equipped with it. To me it seems like you can always feel that tiny bit of millisecond stiffness before the inertia, or whatever, valve reacts. Many love the design for its efficiency.

  4. #4
    mtbr member
    Reputation: iSlowpoke's Avatar
    Join Date
    Feb 2009
    Posts
    340
    Thanks guys!

Members who have read this thread: 0

Posting Permissions

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

THE SITE

ABOUT MTBR

VISIT US AT

© Copyright 2019 VerticalScope Inc. All rights reserved.