your Tyee AL
The frame size plays an important part in the performance of a bike and above all in the fun you have on your bike. If you stand between two sizes, then you have to decide whether you prefer your bike to be playful or stable at high speeds. For high speed stability choose the larger frame size, for a more playful ride the smaller.
Air shock, adjust spring rate through air pressure
rebound control and 3-position-compression (Open, Pedal, Lock)