Please help identify what these are

5 replies to this topic
  • WilfulLemar20

Posted February 23, 2015 - 06:23 PM


I just recently bought an 04 yz 450f and have never seen these wondering if anyone else had an idea of what they are

Attached Thumbnails

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  • devoYZ125

Posted February 23, 2015 - 07:17 PM


Looks like a reservoir or air chamber... Just an idea here

  • Monk

Posted February 23, 2015 - 07:49 PM


Enzo sub tanks...

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  • WilfulLemar20

Posted February 23, 2015 - 07:50 PM


Can you still buy these? Or even parts there is a hose missing and don't know anything about them

  • Monk

Posted February 23, 2015 - 07:57 PM


  • grayracer513

Posted February 23, 2015 - 10:30 PM


The function of the sub tank is primarily nothing more than to increase the volume of air captive in the fork.  The captive air acts as part of the overall spring force when the fork compresses, so the more space there is for it, the more the fork is apt to stay plush through the whole stroke, rather than getting very harsh as it gets close to the bottom.  With the tanks, you can run the oil deep enough to be sure the cartridges won't fill with air but still have enough air space to keep the fork plush.

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