Bearings go bad over time. You might want to wiggle the front wheels and suspension. The wheel will wiggle on the spindle if the bearing is bad. Tierod ends and balljoints wear out too. Try to wiggle the rear axle in the carrier, the rear wheel bearings go out fairly often. Examine the chain, see if it is loose but the adjustmnet is all the way out, indicates a new chain is needed. All of these are normal wear items and don't cost a lot to fix, but you can use them to knock the price down.