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Lunging the bike isn't only a display of good understanding regarding bike\body separation, it's also a very useful move for example with drops or roll downs.
The stomp is a quick and super useful move to preload and unweights the bike. We will be visiting this technique often as it is used for wheel lifts, jumps, bunny hops and rolling over rough terrain.
Do you ever hit your pedals while negotiating technical sections on the trail?
Roots and rocks can catch our pedals and ruin our flow, the ratchet is one great solution which is easy to get started with.