New Rider

I have been riding bikes my whole life started when i was 9.I am an adrenaline junkie and have rode and raced motocross along with streetbikes up until the last 15 years my last bike was a v-65 magna when i was a kid irode a RD400. My question is it a bad thing to start back to riding with a 07 ZX 10 i recently purchased.Please advise if possible?  

Bikes have changed quite a bit in the last 15 years, especially liter-size sportbikes, which can make a Honda V65 Magna feel like a Gold Wing. Re-entering riding after 15 years on a modern literbike isn't the best policy, but if you've already purchased the bike, it's doubtful any advice will keep you from riding it anyway. We can only advise that you keep the "adrenaline" under control as much as possible on the street.  

I had until recently a 2006 crf 450r i had to sell do to financial troubles about 6 months ago. I have rode a bike at all times of my life. I don't ride with out full gear im 41 and look to grow old i am poor and a friend of the family gave to me this bike  i really want to excel at sport bike no matter long it takes.I wont push past my comfort zone or give in to peer pressure or should i sell and start with a 600ss  i'm 5-11 240lbs please advise thank you .  

To tell you the truth, if you really want to "excel at riding a sportbike no matter how long it takes", then you should start off with something smaller. If you've ridden dirtbikes all your life, and you had a CRF450R, then look at this way: you surely didn't start off with an open-class bike when you were learning. You can, but you won't learn much, because you'll be spending too much concentration just staying upright. It's basically the same with sportbikes, but in a different context. It's much too easy to get carried away with the speed a literbike can generate, whereas a 600 will teach you how a sportbike reacts and handles (which is different than a dirtbike), and you will learn to exploit more of the performance that way. It takes more skill to generate speed with a 600, but too many people out there think that if they put 160 horsepower between their legs that they're going to be riding like Ben Spies in no time. Everyone wants a shortcut to going fast; unfortunately, there are none.  

Thank you im going to take you're advice except i will not sell my bike i will get a 600 or ride my sons 636 a little more for a while until im ready for the 10