RC M-07 Concept D Parts Reinforced Suspension Arms (2)These are carbon fiber reinforced nylon plastic D parts (suspension arms) for the M 07 chassis. They exhibit stiffer flex characteristics compared to the standard plastic parts found in the standard kit. These suspension arms are ideal to use on high grip surfaces. Features: M 07 Concept D Parts Sprues x2 Compatible with M 07 Concept chassis. Carbon fiber reinforced parts improve chassis rigidity, and performance on high grip carpet and asphalt