14000 kms is a little early to be replacing a chain if it was taken care of, however its not a deal breaker by any means. You should check the sprockets for wear as they can be a good indicator of use. Of course they may have been changed as well but you should still take a look. I have about 27k kms on my bike and can just barely see some wear on my sprockets. So if the teeth are cupped/hooked in appearance it could have been caused by too much tension or other abuse.