Yeah Racing have introduced a new 2-side aluminium servo horn for the Traxxas TRX-4. The symmetrical axis servo horn allows the servo horn to have a 23t spline in one side and a 25t spline on the other side. The servo horn is made from high-quality aluminum and features a silver edge finish to give some bling while the clamping design ensures it stays in place even after the main mounting screw became loose. It uses the same geometry as the stock servo horn but thanks to aluminum it is strong enough to deal with the torque generated by brushless servos.
See: Yeah Racing