Yokomo Aluminum Main Chassis for SD1.0/Z/ZS - Y2-002ALThis is an aluminum main chassis used as the standard chassis in SD1. 0. With a thickness of 2. 0 mm, it has high rigidity and enables a stable ride. It also provides increased traction to the front, which gives you more control at the exit of corners and prevents understeer, which can lead to significant point deductions. The black anodized chassis top is also bevelled for a sharper look. It can also be used for YD 2Z ZS.