RPM front A-arms for the electric versions of the Traxxas Rustler, Stampede, Monster Jam and Slash are built to withstand some of the toughest abuse. Incredibly, we were able to shave some unwanted unsprung weight as well. RPM Front A-arms are nearly 25% lighter than stock versions of the same A-arms, yet the RPM versions are backed with our world-renowned breakage warranty. Additionally, we've increased clearance areas in the outer portion of the A-arms to allow increased droop travel when used in conjunction with RPM oversized bearing carriers (RPM #80372 and #80382). RPM front A-arms for the Electric versions of the Traxxas Rustler, Stampede and Slash are sold in pairs and are available in either black or blue. These A-arms are molded with what is fast becoming an RPM trademark design of angled leading and trailing edges to reduce frontal edge mass and improve the a-arm's ability to ride up and over tall obstacles instead of slamming into them. RPM A-arms are extremely rigid for superior ride and stability over the roughest tracks and terrain.