RPM A-arms have been designed to be more rigid than stock, yet under extreme situations will give slightly to prevent them from breaking and reduce the energy from those impacts from transferring into the more fragile components of the vehicle, which can be harder and more expensive to replace. The rigidity of the new A-arms will please even the most demanding of racers. RPM Jato A-arms are designed using stock geometry, making them direct, bolt-in replacement parts. Furthermore, they've reduced the clearances around the hinge pins and A-arm mounting areas to help reduce slop in the suspension system, providing better, more consistent camber, caster, toe, and wheelbase settings. RPM Jato A-arms use stock mounting hardware - nothing more to buy. RPM A-arms for the Traxxas Jato are sold in pairs, and are molded in blue or black from our bulletproof blend of top-secret materials for the ultimate combination of strength, durability, & wear-resistance in a lightweight set of A-arms that won't leave your wallet empty! RPM A-arms are the toughest arms you can buy and we back that statement with a lifetime breakage warranty*. RPM A-arms are the last set of arms you'll ever need for your Traxxas Jato!