51mm extra-strong ECS drive shaft for 2mm pin made from world-renowned HUDY Spring Steel™. This race-quality drive shaft is a spare part for #305334 ECS ES (Extra Strong) Drive Shaft 51mm - HUDY Spring Steel™.
With the ECS drive shafts, wheel vibration and noise are decreased to a minimum, steering is increased, and cornering speed and smoothness are noticeably increased.