Fork Oil Questions-
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  1. #1

    Join Date
    Jan 2004

    Fork Oil Questions

    Couple of Questions for y'all regarding open bath forks:

    1) What are the different fork oil weights & what difference do they make in the action of the fork? (I'm riding a '99 BAM if it matters)

    2) What do you do with the used oil?



  2. #2
    Just roll it......
    Reputation: ebxtreme's Avatar
    Join Date
    Jan 2004

    Fork oil answers

    I'm assuming that a '99 BAM, you're referring to a marzocchi, correct? If so, 'zocchi usually uses 7.5 weight oil.

    Common oil weights are 5, 7.5 or 10. You can buy a quart (which will last you a loong time) from a motorcycle shop for under $10.

    The higher # the oil, the slower it makes the action on your shock (compression and/or rebound).

    Some folks will go to a lower weight oil in the winter because when the temps drop, the oil will become more viscous and will slow the fork down a little. Then, they throw in a higher weight when the temps warm up to slow it down a bit. I, on the other hand, don't really notice it that much and don't bother.

    Dispensing your oil.....take it to the same type of place that you'd take car oil. Look for hazardous waste drop spots.

    Hope that helps,

  3. #3

    Join Date
    Jan 2004
    FYI: go to your local motorcycle shop to buy fork oil. It will be much cheaper. At a lbs here 8oz of fork oil is $9.90 while 32oz at the motorcycle shop is $6!

  4. #4
    mtbr platinum member
    Reputation: bikerx40's Avatar
    Join Date
    Jan 2004

    Disposing of oil

    I'm pretty fortunate b/c our recycling / trash people take motor oil and fork oil in milk jugs. But, if you don't have that, then I know that any place that sells motor oil usually has recycling.

    I stopped driving my bike into my garage - I'm now protected with Roof Rack Ranger app for my iPhone.

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