-2 Fork Tubes oil??
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Road Master
Joined: Feb 2010
Posts: 1,237
Likes: 61
From: Albany, OR
-2 Fork Tubes oil??
I'm putting 2" under fork tubes in my FBL. Does anyone know if there is a reduction in the amount of fork oil with putting in shorter tubes? The short tubes are 20-1/4 vs. the 22-1/4 stockers.
Thread Starter
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Road Master
Joined: Feb 2010
Posts: 1,237
Likes: 61
From: Albany, OR
Hey Jim, they won't get here until Friday so I don't know what the documentation will say. http://www.bkrider.com/bkrider/skuse...eria=C01150165
Seasoned HDF Member
Joined: Sep 2007
Posts: 9,741
Likes: 1,598
From: Danbury CT
Same amount of oil as stock. The capacity is still the same in the tubes at least in Progressives. Just check the instructions to be sure.
Last edited by golfblues; Sep 21, 2011 at 12:05 PM.
Seasoned HDF Member
Joined: Nov 2007
Posts: 6,790
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From: Hawaii
I'm not sure of the difference between the FL and the FX but on my night train when I went 2 under tubes I used 9oz in each and went with SE extra heavy racing fork oil. It's pretty stiff and I'm planning on rebiulding my frontend soon this time I'm gonna try SE heavy fork oil just soften it up just a little. Hope this helps you?
Former Sponsor
Joined: Apr 2007
Posts: 5,360
Likes: 453
From: Davie, FL
the oil height is the same as stock until you modify the ride by air spring. The oil volume would have to be less. I never use volume as a measurement.
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Road Master
Joined: Sep 2009
Posts: 932
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From: Pacific NorthWest Territory
Howard is talking about the air space, which is an air spring. Changing the oil level (volume) only effects this air spring.
Measure the air space from the top of the oil to the top of the tube.
If you want the same ride, then it should be at the same level as the old forks, which means you'll have to use less oil.
You can change the ride by adjusting the oil height (air spring) and/or the fork oil viscosity.
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Former Sponsor
Joined: Apr 2007
Posts: 5,360
Likes: 453
From: Davie, FL
This.
Howard is talking about the air space, which is an air spring. Changing the oil level (volume) only effects this air spring.
Measure the air space from the top of the oil to the top of the tube.
If you want the same ride, then it should be at the same level as the old forks, which means you'll have to use less oil.
You can change the ride by adjusting the oil height (air spring) and/or the fork oil viscosity.
Howard is talking about the air space, which is an air spring. Changing the oil level (volume) only effects this air spring.
Measure the air space from the top of the oil to the top of the tube.
If you want the same ride, then it should be at the same level as the old forks, which means you'll have to use less oil.
You can change the ride by adjusting the oil height (air spring) and/or the fork oil viscosity.
