Create a Position Where You Can Easily Raise Your Knees
Mechanism / Why It Happens
Can you scratch your head with your foot? Your body's structure places a limit on how high you can lift your legs.
To ollie higher, you certainly need to lift your front foot as high as possible. However, your body's anatomy limits both the range your leg can move relative to your hips and the maximum height you can lift it. If you feel like you can't raise your front foot high enough, you should first check whether you're trying to lift it beyond what your body is physically capable of.
What to Do
You can't avoid the limit of how high you can lift your legs—but you can raise the limit itself.
A common beginner mistake is trying to pop using only the back foot on the tail. Not only does this
