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Enduro Suspension Tuning & maintenance of Enduro forks, shocks, etc |
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#11
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The Maxima 5w is close to the KYB viscosity.
I saw some posts on TT that said lighter viscosity oils like 2.5w reduces dampening which is a common tuning tool, but it can create other issues when the light oil gets hot and further reduces viscosity. You can put different oil in both chambers, but over time the inner and outer chamber oils mix and blend together. |
#12
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Good stuff, I can use up the old 5wt i have in tbe shed on the fork outers at the next oli change
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GG GP300 18 KTM 350EXC 17 GG EC 450, GG EC 250 08, KTM 525 EXC 06, KTM 400 EXC 01, XR400 97, VTR1000 98, VFR750 95, Husaberg FE400 96, RMX250 91, Maico 490 84, IT250J 81, RM250C2 79, Bultaco Alpina 250 77 - All sold |
#13
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Motorex 2.5w has the same ratings as the kyb oil and is good stuff.
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Back on a gassy! 2018 EC300! 🤘 Txt 280 07 to make me feel like a gumby again |
#14
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Anyone every try any other types of oil like ATF or hydraulic fluid?
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#15
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you would be doing a lot of trial and error if you do not know their viscosity. So many other variables with suspension rather just stick with one oil
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2003 txt250 Pro 2013 Ossa 280i |
#16
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The options are ATF or hydraulic fluid.
Not sure on the viscosity of various ATF brands but hydraulic fluid is fairly simple as the ISO standards equate to specific oil weights. For example the ISO 22 oil is equivalent to 5w oil. Hydraulic fluid is WAY less expensive than fork oil. Like WAY less expensive. |
#17
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Hydraulic fluid is less expensive. But if you try finding correct synthetic hydraulic fluid, things get much more expensive and are usually sold in bulk.
If mineral is fine, then no problem.
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EC 300 2008 EC 300 2018 GP tenere 700 |
#18
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just going off the sales pitch of suspension oils, does the ATF have the non foaming properties of suspension oil? and also longevity (and consistency iro not fading) of being forced through valves multiple times per second
I don't know the answers, but just two questions i would be trying to find answers for
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2003 txt250 Pro 2013 Ossa 280i |
#19
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I am going to try some of the Amsoil 5w light Shock Therapy suspension oil.
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#20
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Quote:
1. Yes, ATF has anti-foaming agents. Foam entrains air in ATF, which reduces its bulk modulus (stiffness), which affects clutch timing (rate of engagement/disengagement) as the fluid "pushes" against a spring. Automatic transmissions have significant spinning elements, all of which work to "whip" the oil. Foam also causes pump cavitation, which causes excessive wear on the pump as well as adversely affects shift quality. Foamy oil is very detrimental to performance, so anti-foam elements are added to everyone's formulation. 2. ATF also has to deal with the pump, pressure regulator/relief valve, and the valves which operate in the valve body. All of those operate at relatively high frequency (pumps at much higher frequencies) than oil passing through a shim stack, so a suspension application won't pose a problem for forks/shocks. ATF also contains solvents/detergents which keep the hydraulic valves in the transmission clean, free from sticking, and generally happy. That will work to keep your shim stack clean. Last edited by blitz11; 04-01-2020 at 04:50 PM. Reason: spelling |
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