I bought my first bike last year at 40, never on a bike until the MSF class. I was hooked immediately. Make sure that you take one.

I looked at the CBRs and a Suzuki GS500. In the end, I went old school with a BMW/7.

My biggest concern was out growing the bike after the first season. Get something in the 600cc range. It’s a good learning size and as your skills increase, it will have enough power to keep you rolling through the turns.

Check out http://www.totalmotorcycle.com/buyersguide.htm there’s a lot of good advice and a ton of reviews for new and old bikes.

i’am 34 old, with kids, and never been on bikes before.
i am looking for a bike that it would be good for biggners and will give me power and speed.
for the time been friends recommended me the CBR 6004Fi or the CBR 900.
could any one help?

Always check brake discs and chain when buying used. These parts wear out and can be pricey, so you have to calculate replacing them into the price if needed.

But I guess you know what to look for after riding for 6 years. Otherwise I strongly recommend bringing a friend who does.