The YIKONG YK4082 Upgrade Parts Brass Rear Cups are designed for the YIKONG YK4082 and YK4082 V3 RC Car. Made from durable brass, they add weight to the rear axle, helping improve traction and stability when climbing, crawling, and driving on uneven terrain. The kit includes 2 rear cups and matching mounting screws for a quick and easy installation. It is a simple upgrade that requires no modification to the original vehicle.

