Welcome! Even when our members disagree among themselves, they're trying to be helpful (and each side almost always provides good information).
At least here in the USofA, the second front disk was available as a dealer option on the non-LS models of 1981-85, so you may find the necessary parts without having to find an LS front end.
Thank you!! NHMAF just answered a question that had bothered me since I bought my 1981 (non-LS): why do some 1981s have single disks, and others, dual? (Mine is dual.) I always suspected that it was a dealer option in the US, and this posting confirmed it. And yes, there
are dual retro kits available for your 1981(check
www.realoem.com and punch in your model data).
I actually removed my second disc......Just to be different!
One of the benefits of this forum is its diversity. Most r65 owners are of a certain age, where bones are fragile. They (and I am one of them) will sacrifice a few pounds (or kg) for increased stopping ability. Then there are some who define the ultimate bike as all power train and handling, and attach little importance to stopping! As for myself, I learned (the hard way) several decades ago to avoid compromising braking ability. As the croupier in an Atlantic City casino would say: "Ya pays yer money and ya makes yer choices. "
John
