Hi, Tian here. Got my first BMW (an R75/5) at the tender age of 19 in 1986 ... always loved 'em!
Had another Beemer (R100) but no bikes in my life for about 15 years - started again at the beginning of 2009 with my shiny new 800gs, and this is my first foray off-road, hence the 1-2 years experience level.
Update (April 2011): after an incident with a cage my 800gs got written off. HP2 is my new bike.