53mm ECS ball-bearing drive shaft made from world-renowned HUDY Spring metal. This race-quality drive shaft is an extra component for #305309 ECS BB (Ball-Bearing) Drive Shaft 53mm - HUDY Spring metal. The ECS BB (Ball-Bearing) driveshafts offer a considerable performance gain on standard blade-type driveshafts. The friction between the driveshaft plus the outdrive is notably paid, which really helps you to offer a much smoother handling feel, particularly on quick direction modifications, like chicanes. The reduced friction really helps you to increase cornering speeds. The 53mm shafts are suitable for much more open and moving track layouts. They are going to provide notably less initial steering, but better steering in the middle of the component, along with on energy. Repair of these bearing driveshafts is essential, but simple. Develop them while you would your normal ECS driveshafts, however with the following addition; we suggest utilising the Hudy Joint Grease (106213) concerning the small bearings while the outdrives, for a protracted life of components.