Did you also notice that the spare tire size is only T115/70R15? That's 100mm narrower than the stock tire (or 2.54 inches). And I'm sure the wheel itself is probably a 15x4.5 as well. That all makes a difference. Don't assume you can use the same offset with a 17x7.5.
I briefly put on my old Centerline RPMs (17x7, 42 offset) and they cleared everything up front. Rear fenders would probably have to be rolled though.
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