**TRUCKS SOLD INDIVIDUALLY, PLEASE ADD TWO TO CART** Equip lightweight responsiveness and solid durability to your setup with the Thunder Lights Skateboard Trucks. Maintaining the same quick turning geometry, these trucks feature a hollow kingpin and a forged baseplate providing reduced weight and a stronger, more impact resistant truck. Axle/Kingpin Style Hollow Kingpin Baseplate Style Forged Features Axle/Kingpin Style Hollow Kingpin - Lightening the load, hollow kingpins reduce weight for lighter feeling trucks, while still maintaining strength in this critical area. Baseplate Style Forged - Forged baseplates are compression molded making them lighter, stronger, and more impact resistant compared to cast or poured-mold baseplates. Forging also eliminates the most common manufacturing defects and imperfections. Non-Compatible Risers Risers from the following brands are not compatible with the baseplates of these trucks. Arbor, Diamond, Dooks, Girl, Independent, Loaded, Paris, Rayne, Sector 9 Sizing Reference Note - Every skate truck brand represents their sizing a little differently, so it's easy to get confused. Take a look at this graphic and then reference the size chart. Specs Size 8.0 axle 8.25 axle 8.5 axle Thunder Size: 147 Hi 148 Hi 149 Hi Hanger (mm): 137.0 143.7 149.8 Board Range (in): 7.75 - 8.25 8.0 - 8.5 8.25 - 8.5 Height (mm): 49.78 52.3 52.3 Weight (g): 317.2 342.7 348.6