Originally Posted by
thenomad
Grabbing the top tube once you are standing on the left pedal only actually helps you dismount the left foot.
+1
Here's a photo of Tim Johnson mid-hover:
http://www.active.com/cycling/Articl...Remounting.htm
So there's this moment when you unweight your left foot by pushing on the bars and top tube, that's when you unclip. I know some people (Myerson) teaches unclipping earlier in the process, but I hate bearing weight on the pedals without being clipped in.
The number one skill to practice is a proper remount from a standing start, both hands on the bars, no extra steps, just get on the bike and ride away. Over and over and over again. If you get this right, the rest comes a lot easier.
One last tip: After a portage, carefully PLACE the bike down, don't drop it.