Serpent Project 4X hard suspension parts
Coming from Serpent and made for the Project 4X touring car are hard composite suspension parts. Available are the interchangeable front and rear hubs, as well as upper and lower arms all of which are made of a stiffer material that improves overall performance on high-bite asphalt and carpet surfaces and when running in hotter ambient temperatures. All parts are marked with an “H” for easy identification and they are available as separate sets or as 8-piece combo kit.
Source: Serpent [serpent.com]