Skateboard Bushings - Buying Advice
Skateboard bushings fit into your trucks and offer the pivot point whereby the wheels can move left or right.
The sensitivity of the turn depends on the hardness of the bushings. If your bushings are super hard, they'll be difficult to press your weight onto and therefore get the board in the direction you want. Generally speaking, most setups will have hard bushings as standard.
To get ﾠa more reactive turn, all you need to do is replace the bushings with ones that are a little softer - anything around 78A would be considered 'soft'. They're a relatively cheap part to upgrade and really do make all the difference.