Seismic G5 180mm/30Deg./Medium-Spring/Hollow Axle-Raw Skateboard Truck (1 unit) ONE (1 unit) high quality Seismic skateboard truck Brand: Seismic Color: Raw 180mm faced Hanger with 30-degree Baseplate General setup suggestions: For optimal traction, power, and control, we usually suggest a 30-degree truck at the tail and a 45-degree truck at the nose, with stiffer springs at the tail than at the nose. Use two 45-degree trucks on symmetrical (twin-tip) freeride decks. Use stiffer springs if youre heavier and/or taller than average, softer springs if youre lighter and/or less tall.