Check the oil (shouldn't look like chocolate milk or be pitch black) and coolant (if applicable). Check the brake fluid—it should be translucent, not dark brown.
Ensure the seller has a clean title in their name. No title usually means no deal. buying a used motorcycle checklist
A 10-year-old bike with a flawless, non-factory paint job often suggests it was dropped and the fairings were replaced. Check the oil (shouldn't look like chocolate milk
Does the clutch slip? Does the bike "click" into gear smoothly, or is it clunky? buying a used motorcycle checklist
Check the "date code" (four digits in an oval). If they’re over 5 years old, they need replacing regardless of tread.
Check the thickness of the pads and look for scoring on the rotors.