[ninja250]

I can make the bike do a backflip on the stock gearing.
Rev to redline and dump the clutch as fast as you possibly can.
You might end up back on your two wheels. lol

But in all seriousness, yes it stands right up on the stock gears if you know what you are doing. Lean back, grow some balls and use some throttle. Cover the rear brake in case you go too far. Step on it. If it's not coming up, you're not dumping the clutch right or fast enough.

Much funner and safer when you modify it into a real stunt bike though.. slow big gears and easy wheelies.

The front brakes aren't so good for stoppies, but again it's perfectly possible there too.

250 is a good bike to learn clutch control for wheelies.
Use one or two fingers on the clutch the rest on the grip.
Keep your fingers away from front brake.

Stay away from cars and off the main road, please.
Using your powers to show off gets you in troubles.
Keep them to yourself.

Be safe, think about your family and friends and your beautiful bike.