I'm no guru, but I have an 87 cr250 that needs a front wheel (cracked). In my parts searches I've discovered that according to WBros the front rims/hubs from 84-94 on all cr's 125/250/500 are the same. At one point they did change rotors, but they had the same mounting holes. They list rear wheels 89-91 on the 500. (when buying a new wheel with talon hub). There is no listing for anything older. So, if you know the 86 has a different brake, and the 89-91 are listed the same. Then one could assume that the 87-88 are the same. OR the 87 could be totally different than the 88. :bang: Sorry, I guess I was no help at all. :uh: