WEll my friend is looking to get a trail bike for racing me and my buddy on his quad. He has a 400ex and i have a kdx220. I have many mods on my bike and he also has many mods. He is 5'5'' and 130 pounds. He wants to be able to race with us. It is single track and we do time trials. It has alot of straights and hills and a small section of mud. He is looking at mx bikes to ride with us. WE found a 2001 yz250 for $1850 and a 2000 rm250 for $1400 but that bike needs a new rear tire and some small things. My guess about $200 in parts. So figure $1600 for this bike in really nice shape. The rm has fmf setup new top end, new fork seals, needs nitro in rear shock and needs rear tire. Also has Tag triple clamps. The suspension has been setup for mx so he would need a revavle. As far as which bike being more trail friendly which is a better more reliable bike? Also should he even be looking at 250's or 125's? Thanks