I'm not sure how rare it is but I know it is unique after the conversion. It started out as an 87 Giant Yukon. This was the first year that Giant made there own bikes. The shop I worked at was given a deal for the employees to buy them below cost. I think I paid $220 for mine. It was essentially a stumpjumper frame with a Deore group on it. It spent many years as a single track rider out in Moab and Crested Butte. Eventually was re-purposed to pull the kids in the Burley and after they grew out of it it was built into its current form. Now it has 700c wheels and a Campy record triple crank with it's existing Deore group. The color takes a little getting used to.