The ECS BB (Ball-Bearing) driveshafts provide a significant performance gain throughout the standard blade-type driveshafts. The friction between your driveshaft therefore the outdrive is greatly paid down, which helps offer a much smoother managing feel, specially on fast way modifications, such as for example chicanes. The paid down friction helps to increase cornering speeds. We recommend the reduced 52mm shafts for smaller, more technical songs, in which more initial steering will become necessary. Maintenance of those bearing driveshafts is essential, but quite simple. Build them while you would your normal ECS driveshafts, but with these addition; we recommend using the Hudy Joint Grease (106213) involving the small bearings while the outdrives, for a prolonged life associated with parts.