58mm ECS ball-bearing drive shaft made out of world-renowned HUDY Spring metal. This race-quality drive shaft is one more component for #305306 ECS BB (Ball-Bearing) Drive Shaft 58mm - HUDY Spring steel????. number of 2. The ECS BB (Ball-Bearing) driveshafts provide an essential performance gain inside the standard blade-type driveshafts. The friction between driveshaft once the outdrive is repaid, which allows you to definitely offer a smoother maneuvering feel, specially on quick method modifications, specially chicanes. The paid down friction enables you to increase cornering costs. Repair among these bearing driveshafts is important, but easy. Develop them whenever you would your normal ECS driveshafts, but with another addition; we suggest utilising the Hudy Joint Grease (106213) betwixt your small bearings combined with the outdrives, for a protracted life of this components