My son has an 07 crf250 and I was looking at getting back into riding so I have been looking around for different bikes. I was surprised to learn that the bikes have gotten heavier over the years. I have been out of the sport for quite awhile but I thought manufacturers would find ways to drop weight on the newer bikes. According to specs my son's bike weighs in around 215 and I was comparing it to a 2013 kx250f which weighs over 230! Is it more durable beefy construction or something else that has packed on the lbs? Not that I can criticize too much as I have done the same thing over the years.