I know this was on a previous discussion topic and I remember browsing through the discussion. But now I am faced with the same decision I need of some advice from other parents that went through the same. My boy is 14 will be 15 In a couple months he is currently on a crf150r which he loves but is out growing he is 5'9" and about 115lbs. I can't decide what the next move is 125 or 250f. I'm kind of split 50/50 on the issue i see advantages and disadvantages to both. I will say he loves the 150 and is not going to be turning pro anytime soon. But he does love to ride before the 150 he had a 85 and I can say he does much better on the 150 than he did on 85 but I'm not sure if it's the bike or just more seat time. Any advise from anyone that has been in the same situation would be greatly appreciated.