Selection

Width
It’s usually best to pick your truck width so that, when fully assembled with wheels, your board will balance on its side, deck perpendicular to the ground. When the wheel track and deck width are matched in this way, you get very smooth leverage on the trucks. Wider wheel tracks give a more stable feel, but your board will be less quick to respond.

Geometry and Spring Strength
Seismic baseplates come in two geometries: Quick-Turn 45° and Stable-Turn 30°. For most boards, using a 30° truck at the tail and a 45° truck at the nose maximizes power, control, traction and stability. Exceptions: big vert, technical street and downhill boards (use 30° trucks on both ends) and low-speed recreational carvers (use 45° trucks on both ends)

Seismic springs come in eight different color-coded strengths. The preinstalled springs are designed to optimally blend turning ease, stability and resilience for the average user. Of course, what works best for you will vary depending on size, style, personal preferences, and the disciplines you practice.

White Max-Light	Orange Super-Light	Light Blue Extra-Light	Red Light	Green Medium	Purple Heavy	Dark Blue Extra-Heavy	Black Super-Heavy

Stable-Turn 30° assembly and side view

Quick-Turn 45° assembly and side view