Standing start, rear wheel skip

You ride for Australia? Surely you have a coach for this sort of thing? If not then it's probably got something to do with you being lazy.

colm != Dan Ellis.

He's just using the photos to demonstrate that pros do this without skipping the wheel.

So his question stands... how come he does, when pros don't?

And I would say that it's partly due to leaning forward, and partly due to an inconsistent supply of power to the drive train.

The combination of power coming through a mashing motion and lack of down force on the rear (weight), results in skipping.

The pros are likely just applying power more evenly throughout the pedal stroke which prevents the skid even though the down force has been reduced.