Ok, but is it synthetic?
Major difference between synthetic and regular semi or mineral.. would say a 7.5w synthetic is equivalent to a 5w mineral maybe..
At least what I’ve been told from a guy working with suspension in the military industry for many years..
I did see a manual for the gt650 in Europe stating tellus fork oil and someone on this forum mentioning it’s equivalent to a 10w but on two separate occasions years apart, my hyosung dealer said stock fork oil is 5w. May apply to US spec bikes? Didn’t see it on the manual that came with my bike but my dealer is a legit hyosung dealers. But he recommends 10 for someone around 175 lbs for best performance. So for u I would go with a 10w
And in case anyone is wondering the 2013 fork seal dimensions are 41x53x8/10.5 again confirmed by my dealer at least for the 2013 gt650r in the US. He had to source it from k&s which sells directly to dealers only per the company website. Can find them on Amazon tho. The oem seals were delayed. Would like to find skf seals if possible cuz heard they were the best.
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