ST Racing Concepts STH103165 Carbon Steel "Big Bone" Universal Driveshaft Set for The HPI Blitz (1 Pair)

This is an optional ST Racing Concepts Heat Treated Carbon Steel "Big Bone" Universal Driveshaft Set, and is intended for use with the HPI Blitz short course trucks. Universal driveshafts are often the first upgrade for many racers, but for years universal driveshaft design and material have remained the same, despite the drastic change in power from brushed motors and nickel cell batteries to the more powerful LiPo/Brushless combination. ST Racing Concepts has studied all the components used in traditional universal shaft's, with a focus on improving the material and design. The material is critical and equally important is the heat treatment process. After months and months of prototype testing different materials and increments of heat treating, ST Racing believes they have developed a better finished product. First the universal driveshaft bones have increased in diameter for more durability. They also used the same carbon steel material for the axles, which featur...