Originally Posted by ill.clyde

Like anything it gets easier with practice. Practice in a park or on a grassy area if you're worried about falling. Place an object in front of you and learn to raise the front wheel. Then as you're more comfortable, work on raising the front wheel over, and then the back wheel as it follows.

Originally Posted by fietsbob

.. practice your Bunny Hop .. if you can do it well, you can beat all your competitors around the course in cyclocross races .

as opposed to getting off, jumping over the barrier , and geting back on ..

You jump up and bring your bike up underneath you , as once your body mass is in motion ,
it is larger than the weight of the bicycle..

unless your bike weighs like a T36 Tank.