|   Fork oil inquiries... | free-agent
Feb 19, 2002 4:10 PM | | I sure am learning a LOT about forks and oil this week! I recently changed the oil in my fork and used marzocchi 7.5 wt. BTW-I am a 150 pound XC racer. I have noticed that after the change that the fork is much more, how shall I say it, squishy. For example, I need to run about 37+ psi compared to 30 psi. Is the 7.5 wt too thin for someone that wants a stiffer fork for riding amd racing XC? If so, what oil should I look into for the next change?
On the other hand, maybe the fork is performing the way it was meant to and I have no idea what the hell I am talking about!!
Either way-thanks for input! |
| re: Fork oil inquiries... | suspension fluid
Feb 19, 2002 4:42 PM | | lets start with what fork your using? Most forks are very sensitive to oil amounts used and will have an effect similar to what you describe. Spectro is excellent oil too. |
| re: Fork oil inquiries... | free-agent
Feb 20, 2002 7:45 AM | | 2001 X-fly, 80mm. I have in 45 mm, maybe a little more in each leg. I'm assuming that the fork should be stiffer considering that I have the max. amount of oil added. Right?
Marzocchi recommends 45 mm oil, up to 30 psi to get 8-16mm of sag. I am needing to add 37 psi to get around 12 mm of sag.
I measured these a while ago and need to recheck the numbers. How much sag is appropriate for a XC rider/racer?
thanks for input |
| most likely an oil height problem... | zedro
Feb 19, 2002 6:56 PM | | or in this case, not enough oil. Go to the marzocchi site and look under oil heights in the tuning section. I'll give you a range (ie: 45-55mm etc.). The more oil you put, the progressive your fork will feel. So between 2 differing oil heights, you'll need to run 2 different pressures. Unfortunatly theres no magic number anyone can give you, dialing in needs trial and error.
I suggest starting with the minimum oil height and then adjust the pressure. If not satisfied, keep increasing your oil height incrementally.
Also that oil WT should be right for your weight. Good luck. |
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