Sensible small single cylinder thumper.
Like the XV250 but single cylinder (not powerful!). Harley wannabe (mild chopper style). A nice, friendly, easy ride. Perfect for cautious beginners and commuters who want a bit of style without hurting the pocket. You might learn to love it.
Simple design with easy, cheap maintenance and reliability. Not much wears out and when it does the parts are not known to be expensive. Main cost will be the chain & sprocket replacement every 6,000 to 13,500 miles, depending on how you care for it.
Rely on engine braking when you can, the brakes will work too... with a bit of forward planning. Stay off the freeway, this is not a racehorse, but it will get you to work and back and the odd weekend ride. Not aware of any performance kits for the GN250. Power delivery is even but this is not a torquey bike.
The GN250 series has been around since the 80's but is still in production as of 2006.
Not as good as the SR250, perhaps, but still a fine bike.
Other specs: Approx 75MPG/28KPL