hey all. I race big bikes but am new to the 50 scene and was looking at getting a jap mini (mainly cause i want it to be reliable) just to mess round on, do a few jumps and make a rut track round home or what ever. Question is are crf50's too weak stock to pull round a 70 kilo teenager?? so then it got me thinking should i get a crf70 or 80. reason being i just want to buy it, put a bar kit on it and ride it. let me know what you think, will i get bored easy on a 50 and should go for the 70 or is the 70 too weak aswell? love any feedback!