A possible concise summary is:
In this video, Kyle Warner teaches his girlfriend April how to manual, which is a wheelie without pedaling, on a mountain bike. He explains the technique, such as feet level, heel down, arms locked, and hip past the rear axle. He also shows her how to manual on different types of rollers on a pump track. April learns quickly and overcomes her fear of crashing. Kyle encourages the viewers to practice and subscribe for more videos.
Here are some key facts extracted from the text:
1. The text is a transcript of a video tutorial on how to manual on a mountain bike.
2. A manual is a wheelie without pedaling and it is useful for carrying momentum, getting over obstacles and dropping slower.
3. The instructor is Kyle Warner and he uses his girlfriend April as a student to demonstrate the technique.
4. The technique involves having level feet, dropping the front heel, compressing and popping back with the hips, locking the arms, looking ahead and covering the rear brake.
5. They use cones, cracks in the sidewalk and a bike stand to practice the manual on flat ground.
6. They also try to manual over rollers on a pump track, which requires patience and timing.