The 100A durometer is the firmest option in the lineup, making it ideal for skaters who prefer maximum stability, reduced wheelbite, and a tight, controlled turning response. Perfect for high-speed skating, big gaps, and riders who like a stiffer setup.

Each kit includes everything needed to rebuild one complete set of trucks:

• 4 High-Rebound Urethane Bushings (2 top / 2 bottom)
• 2 Pivot Cups
• 4 Tempered Steel Washers
• 2 Kingpin Nuts
• 4 Axle Nuts

Whether you're dialing in a brand-new setup or replacing worn components, the Thunder 100A Rebuild Kit delivers the durability and responsive feel trusted by skateboarders everywhere.