Inspect the chain for rust, seized links, or "hooked" sprocket teeth. If it's a belt-drive, look for cracks or abrasions.
Check the date code ; tires older than 5 years may need replacing regardless of tread. Look for uneven wear or dents in the wheel rims. buying a used motorcycle from a dealer
Even with a dealer’s "multi-point inspection," you should personally verify these critical features: Inspect the chain for rust, seized links, or