Hi guys. I am interested in starting dirtbiking. I have cousins and other relatives who dirt bike and I am moving to an area where it is common to do it. I have ridden four wheelers before and enjoy driving high performance go karts. I am about 4 10 and am torn between a yz85 and an xr100 for a first bike. I wanted a xr100 but my cousin suggested a yz85. I will do both trail and eventually track once I build up some skill. I want a bike that I won't grow out of in 3 months. I am open to other suggestions.