1 answer. 7 oz or 220cc for each fork leg of Dexron ATF or fork oil for the 1981 GL1100. ATF = 5 wt 10 wt or 15 wt is often used in bigger bikes. Aug 24, 2010 • 1981 Honda GL 1100 Gold Wing. Vay Tiền Online Chuyển Khoản Ngay.

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