Serpent have introduced new hard suspension parts for the Project 4X 1/10 Touring Car. Made in a special harder composite mix, it still very durable, but less so than the standard material. The harder suspension parts work especially good on higher traction surfaces ( carpet and asphalt) as well as under other conditons . The H parts as tuning option will create a more responsive car behavior, as the parts flex less. These hard suspension parts are available as seperate parts as well as a complete set. The parts are indicated with a H ( for Hard) to distinguish them for the standard parts.