Hi Guys ,I am new here on this board ,however not so new to Thailand . I am approx. 6 month per year in SEA -mostly Thailand-based in Udon Thani. I do ride a Honda Phantom ,but want to buy an offroad bike to have some fun in the mountains. Yes, we do have hills /mountains around here-maybe not as high as around Ching Mai ,but nevertheless. Further the Loie Region is only about 120 km away and there are some real mountains. Anyway ,the Phantom does not take the hills lightly ,I burn out my clutches too quickly. I weigh about 220# and have driven Bajas ,but mainly on flat land. The 250cc seem to me sufficient,but are they really in the mountains ,perhaps even with a little rider on the backseat?Would a 400 cc be more advisable? Any first hand experience /advise out there??