I am a older rider (63) but have owned a lot of different bikes in my time. I just purchased a used 2008 Honda G.W. with 8,000 Miles on it. (about 14,000 km. I live in Ontario Canada) I love the bike and would like to know how many miles I can expect to get out of the tires before I have to replace them. I am not an agressive driver. Thanks in advance for any info.