Skip to content
View in the app

A better way to browse. Learn more.

Trials Central

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Front Fork Adjustments On 2.9 '04?

Featured Replies

I've recently purchased a 2.9 2004. Love it so far...

I was surprised to see those blue caps on top of the fork tubes are effectively just... caps. I thought that the fork would have compression and extension adjustment as my older trials had but nope... Then by reading the companion maintenance poster I learned thoses caps should be unscrewed every 5 hours of riding to relieve the air pressure.

What is the concept behind that? The fork compresses air and once in a while you must "reset" it ? Are there any suspension adjusters that I don't see ?

Edited by hugo

yOU CAN ALSO UES THE CAPS TO MAKE ADJUSTMENTS TO RIDE HEIGHT. IF YOU OPEN THE VALVES AND COMPRESS THE FRONT END BEFORE LOCKING THEM DOWN THE FRONT WILL SIT A BIT LOWER WHICH DECREASES THE RAKE AND MAKES THE BIKE TURN A BIT SHARPER IN TIGHT SECTIONS. THATS THE THEORY ANYWAY. bE SURE THEY ARE TIGHT ENOUGH THAT THEY DON'T LEAK!

oOOOPS! cAPS oN! :hyper:

Where does the air come from?

I assume that fork seals are made in such a way that they seal better in one direction than the other so they'll keep stuff (oil) in.

My guess is that when they extend, they suck a bit of air past the seal, and the seal holds it in.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.