![]() ![]() If you want to change fork characteristics? - you may be able to do that, too?Īlso, see the chart's listing of VI (viscosity index) - that's the number that indicates the oil's resistance to viscosity change with temperature - usually, the higher the number the better- the "perfect" oil would not change viscosity with temperature. If you want your T-800 forks to operate as Triumph intended, then you (probably?) need to use that same oil. When it comes to fork oil, the SAE viscosities may be too broad of a measuring stick - one SAE viscosity number can cover a range of viscosities.Īccurate fork-oil viscosity is usually measured by a more accurate scale: cSt - centiStokes or SSU - Saybolt Seconds Universal. viscosity and quantity of oil (along with a lot of other design factors, ignored for simplicity) determines the rate of compression and rebound. I came across a discussion about fork oil viscosity and an interesting chart.įor example the Tiger 800 manual specifies Oil Grade - Showa SS 8 (which I have discovered is 'something-like' an SAE 10 viscosity). The viscosity index reflects how well an oil retains its viscosity at various temperatures, so the higher the index the better. The job of fork oil is to provide damping, it provides both compression and rebound damping, i.e. I am not a suspension expert by any means. I have been researching for oil as I my upgrade my XC's front suspension.
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