This is the GPM Racing Arrma aluminum rear knuckle arm.
This product includes :
Rear Knuckle Arm-2pcs
Stainless Steel Round Head Screw 3x20-2pcs
Product major function & usage:
Stabilize rear lower arms and rear upper tie rods
1. Aluminum 6061 T6 is light material with high tensile strength for great durability during extreme RC action.
2. Precise bearing position minimizes the gap so the rear wheel joints can rotate smoothly, making the wheel more stable.