Well, they're not quite the same. The 650 fender has sort of a brace built into it while some of the fenders for other models don't. I discovered this when I bought a used replacement for mine off eBay. They said it was from a 650 but it's not braced like a 650 fender. It fits fine but I don't know what it came off of. That's probably why the fork brace I added made such a difference, lol .....
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