They certainly look like the right ones. I had emailed UFO yesterday asking about guards for the 1990 and if a later year would fit. Their response was "UFO just started with the 1991 fork guards for the KX500". No mention if later years would fit. I guess what confuses me is I've checked ebay for this item and when using the fitment guide, they say it's not compatible with the 1990. But, I am kind of desperate to find fork guards, so maybe I'll take a chance and order them. Thanks!