Beginner Motorcycle

Ackrite

A used bike is probably smarter since it won't sting as much when you drop it and value depreciation isn't as bad if or when you want to sell it to get something new. I would try to find a bike that hasn't been stunted because the forks will be in much better condition. I wouldn't be too worried about mileage as long as it's been properly maintained, including valve adjustments for higher mileage motors. The 4 Japanese 600 sport bikes are all good, it's gonna be a preference thing. Although I would suggest trying to sit a look at each one to decide which one looks better to you and sit to feel the ergonomics. Each one is slightly different ergonomically and performance difference is negligible unless you are an experienced track rider. The R6 is a good bike.