I wanted a 650 but all seem spoken for as far as my search results go.I found a 550 and was looking for experiences/opinions.I am going to be using the bike for 99% street riding and may get it on the track for a track day.I have a KTM 625SMC now that I use for street duty/commuting.How do they compare,the 550/650 to the 625 in terms of power/handling? Is the 550 soft in the power department and what is with the bearing issues? The 550 I am looking at is an '07 new and still on the dealers floor.After reading the threads on the bearing issues it kind of puts me off the idea of a 'Berg because I have NO dealers even remotely close to where I live.If I ride street only and no racing am I going to be riding a time bomb and end up with a bike that I can't ride? I am not slamming the 'Berg as I have wanted one for quite some time but have concerns as far as longevity of the engine.I don't want to buy a bike and have bearings replaced or worse after 10 or so hours of riding.