NOTE* I am not an expert nor do I have very much knowledge. I just buy and drive*
Okay, the latest models are always the best, since every year, they try to make their vehicles perfect eg. Improve the faults from the previous ones, so a 2012 model is best in this case.
I have heard that older models(the ones with the headlight switches on the right side of the steering handle to be more sturdy and solid that the newer ones(please tell me if I am going wrong =P)
And for an used one, try to bring a well trusted mechanic with you, so he can inspect the engine if it has opened or it requires any further work to be done. And check the engine oil level, if it has less the previous owner hasn't been very careful with regular inspections.
check the suspensions, back and front since they can go weak after usage. ODO meter readings, if the head console has been opened/tampered with.
And inspect the registration book and try to contact the previous owner if possible asking him where it has been driven etc.
Good luck and I hope you find a nice MC and it brings you alot of luck =)
Owner of 2006 honda 125 which sucks lol
Please, experienced members correct me, as I am crap in motors <.<
Faiz <(^_^)> <33