I just want to throw it out there that sometimes in fact many times it is not the bike but the rider. I'm a new rider, I'm 34, I'm an old athlete, I ride a mountain bike around town and have been behind the wheel of a number of fast cars in sketchy situationsj and somehow always got out of it safely, no damage to car or others.
With that in mind I bought an Fz6 and had an accident in 2 weeks. Long thread on the whole topic but it was mostly my fault in a lack of skill in situational awareness and how to correct a bad situation with road conditions.
I got a new bike Fz1 and within 24 hours crashed again. This time my fault, I was riding like a complete a-hole and just froze rather than trusting the bike and even beginning to explore the abilities.
Motorcycle Crash: How to Ride Like a Squid - YouTube
The point of all that is that in both situations it was not the bike that caused the problem, rather the guy with his hand on the throttle. The only difference between the two situations I felt is that on the Fz6 I had about 1-2 seconds to react and on the Fz1 I felt like I had 0.5-1 seconds or less to react. Speed gets on you a lot faster with the bigger displacements and if not careful it will overtake ya.
I've thought bout what it would be like to have started on a crf25L or Drz-400sm because of how much more forgiving that throttle response will be. But, I tell you what after riding an Fz6 and the Fz1 I won't go to anything less on the street. I'll just learn self control and count my blessings no serious damage was done on my Fz's. Still considering a DRZ400, KLR 650 or any other dual sport to go learn how to mess around on dirt.