I have only used OEM Dunlap Qualifiers, since my 1984 Aspencade was bought new, except once. I had another tire put on, that was very popular, to get me on a planned ride, until the Dunlap OEM came in. (Dunlap was on strike for awhile) Anyways, I hated the other tire, and it was only a fraction of an inch wider. I will never understand, someone putting a car tire on a motorcycle. As stated in a previous post, in a turn, how much rubber is in contact wit......Hmmm, gives me a warm, fuzzy.....I also ride an 1800 GW, and a CBR 1000rr, and can not ever imagine a car tire on one on those eithe.......... Oh well, there is always someone trying to outsmart these manufacturing engineers. Make sure they grease the splines, as most shops will not.