The RPM Arrma 4x4 Front Suspension Arm Set offers increased adjustability and improved durability in a lightweight package. RPM added a second shock mount to both the front and rear A-arms to the outside of the stock shock mount, adding adjustability and improving trackability. This outer shock mount lowers the ride height, increasing stability on all surface types. A lower ride height also means faster corner speeds. Molded from RPM's trademark blend of indestructible, engineering grade nylons, you can't get much tougher! RPM also redesigned the shape of the A-arms while retaining stock suspension geometry to help improve survivability for those oops moments.With RPM's stronger materials and improved designs, they are able to cut out unnecessary weight while still offering suspension components that are unparalleled in performance and durability.