Sportster Models 883, 883 Custom, 1200 Custom, 883L, 1200L, 1200S, 1200 Roadster, XR1200, and the Nightster.
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1998 sportster 1200 xl

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Old Dec 2, 2018 | 05:06 AM
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Default 1998 sportster 1200 xl

I just got some +8 fork tubes for my sporty and I have no idea how much more oil I’m supposed to add?
I know stock is 10.5.
 
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Old Dec 3, 2018 | 08:45 AM
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The action of your forks isn't going to change with adding longer tubes, so I suggest you try that stock amount. The extra length of the tubes is just sitting there, admiring the scenary as you pass by!
 
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Old Dec 4, 2018 | 08:24 AM
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Extended fork tubes use the same amount of oil as stock length tubes. Same springs too. You need to make PVC spacers to make up the differences in the fork tube length.
 
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