I'm a total newb but plan on getting head over heels (get your laughs in now because I'm sure I won't find it funny 2 minutes into my first trail and it happens heh) into trail riding. I'm an expert Nouvo rider in Bangkok for 7 years (yeah yeah, 125cc automatic) but have ridden a few big bikes over the years on pavement (R1, Steeds, CBRs etc, mainly the cruiser types).. But I've had no formal training and my confidence on the big bikes is mediocre. I'm 5'11" tall and weigh 111kg or like 244lbs... im actually pretty fit for someone with this weight, a former bodybuilder who has pretty much let myself go for 2 years QUESTION: My Thai friend/local motorbike mechanic/dirt biking enthusiast is going to take me for my first trail ride this weekend and while he will be riding a 250cc he suggests a 450cc for me. I don't often hear about such big engine motorbikes being talked about here for use in Chiang Mai.. He says it's because of my weight but I'm thinking I'll end up killing myself quicker on such a powerful bike. Jedi Masters... what do you think?