Here my humble opinion,
A beginner bike is nothing but a bike you can handle it in terms of weight, power and available funds to buy it.

I would stick with the 600, unless your cash only reaches the 250, then that is a great bike too and you should not invest what you do not have for your beginner.

Now, the most important, the difference between the 250 and 600 is power and weight, managing power is a matter of maturity and responsibility, keep in mind that both bikes are fast enough to put in in trouble. Since you already mentioned that you are responsible enough, then you should not worry.

Motorcycles are all pretty much the same in terms of safety, it all depends in our ability and decision making process, remember that power makes you feel good, then you start adding up a noisy exhaust system and it makes it even worse, you will want to throttle up, so just be careful and be safe, we expect you to be responsible and to enjoy your new bike 600 safely.

Go for the 600 if you can handle the weight, do not worry about power, it is all in your mind and you will be more than fine.

Regards,
BRAZEAGLE

 

A starter bike has to let the new rider explore the full potential of the bike without being so fast that this is excessively dangerous. With a 600 it is. With a 250 it isn't. It must also encourage the new rider to explore the potential of the bike. Do that on a 600 and your life span gets somewhat reduced, so you learn to ride with restraint - it effectively discourages you.

There is also the point that with a 600 the power band is fairly narrow and fairly high up the rev band. This means that the new rider can't start to use the power of the bike until it's running at very unsafe speeds.

Responsibility and maturity has nothing to do with it. A responsible mature individual wil be safe on a 600, but he'll never learn to ride it properly in all road and traffic conditions. To do that you need a bike that you can, as your skills develop, ride to its limits.

The size and weight isn't really an issue, although there is a good argument for using a really small bike - a 125 maybe - for really learning in depth the slow speed control skills that are the core of all motorcycle control, but this is a short lived time span - a couple of weeks at most if you're properly trained and practise what you've been trained until it all becomes instinctive. What is an issue is the amount of power and the manner of its delivery.

You'll learn more, learn it better, and learn it faster if you learn on a bike of around 250cc. There are some conditions where a 250 isn't powerful enough. Those situations are best avoided anyway by an experienced rider. THat apart, if you get bored with a 250, it means thatyou haven't learned to ride it properly.

Rob