The original XRAY ECS Drive Shaft with 2.5mm pin equalizes the price between your drive shaft thin wheel. With a genuine 2-piece joint regarding the axle even though wheel, the same extreme wheel turning angle is divided into two shallower views without joint binding. Meaning at the same cornering price, the internal wheel wont bind or vibrate. Drive through part is more stable, more accurate, and a lot more simple to push. The ECS Drive Shafts help in addition with improved landing after jumps. Using the ECS drive shafts, wheel vibrations and sound are reduced to minimal, steering is increased, stability of car is increased and cornering rate and smoothness are somewhat increased as well. Important option component.