XRAY X4 ECS BB Drive Shaft 58mm. These optional drove shafts are made from HUDY spring steel and intended for the XRAY X4. Package includes two drive shafts.
The ECS BB (Ball-Bearing) driveshafts offer a significant performance gain over the standard blade-type driveshafts. The friction between the driveshaft and the outdrive is greatly reduced, which helps to give a much smoother handling feel, especially on fast direction changes, such as chicanes. The reduced friction helps to increase cornering speeds.
NOTE: It is recommended to use Hudy Joint Grease (HUD106213) for prolonged life.