Now the added mysteries of fork oil to contend with its forking nightmare.īe careful with the SAE scale: it is so broad that by looking just at the label you can easily run into a 7.5W which has actually the same viscosity of a 5W, at a given temperature. So here i was thinking suspension tuning was already a dark art. But then i look on the belray website advisor and it says to use the 7w oil The 7w oil should be okay because its above the minimum required cST of 28.8 for an average 32 but still.ĭatasheets - and (ratings are on page 4) So based on a cST 32 at 40 degrees the 10w belray oil is the one to get. So the sachs shock needs fork oil rated at an average of 32 cSt 40 degrees celsius.Ī chart here explains the grades and what - īelray is easy to find here and double checked the datasheets and confirmed the ratings noted in the website above were pretty close. Worthwhile reading this website for some fork oil education. Long story short i have been reading about how SAE ratings for fork oils are worthless and need to pay attention to the cST ratings. Ive never seen apig products in the shops here so i went hunting for a SAE 0W or ISO VG 32 (which i had no idea what that means). Whoops thanks amauri i should look a bit harder next time
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