Howdy folks. Here is the 1 million dollar question that doesn't have an exact answer. I'm looking to buy a used bike that has a 7 year old (manufacturer date) rear tire and a 6 year old (manufacturer date) front tire. The tire tread still look half decent and there's no buldging or cracks. I've read any tire after 5 years "should" be replaced. What would you guys do? Buy the bike and keep the tires or negotiate a lesser price as you'd want to replace them? Thanks!!