RPM tightened the tolerances around the hinge pins, reducing the fore and aft movement of the A-arms at both the inner hinge pin and at the axle carriers by better than 90%. As a bonus, RPM cut 6.5 grams of weight off of each A-arm for a total loss of just under one ounce of weight simply by replacing your stock A-arms with the RPM versions. RPM A-arms carry over their traditional look with 30 degree leading and trailing edges and huge bosses for the shocks and sway bar mounts. RPM A-arms are molded in their trademark blend of incredibly durable nylons and are backed by an industry leading warranty.
Used with permission, copyright 2019 RPM Custom Engineered R/C Products/Horizon Hobby, Inc,. Copyright 2019 Brey Corp. t/a Hobby Works