You will find several Onspot tutorial videos on Youtube. One of them explanes how the chain wheel is adjusted. Learn more here.
How to adjust the Onspot chain wheel? The Onspot chain wheel has an axle that connects it to the arm. That bolt is bent by 5 degrees for a purpose. By turning it and placing it in different positions it effects the angle of the chain wheel. By having it correctly installed you will get the best grip and effect out of the system.
On top of that you also have the Onspot E-Training portal. It is always available, on all platforms. Sign up here. It is free.