Hot Racing - Progressive 33x160mm Springs for Traxxas X-Maxx Electric Accessories different flight modes in airplane

different flight modes in airplane and helicopter programs

5mm hex wrench for setscrews

no messy gluing required

Adjustable track width : fixed

Spring Length: 68mm

Hot Racing - Progressive 33x160mm Springs for Traxxas X-Maxx Electric Accessories different flight modes in airplaneMulti rate springs allow the optimum spring rate for each application. These multi rate springs are soft at the beginning to soak up the small bumps, but transition to the stiff part of the rate to resist bottoming on jumps and other big hits. Two (2) Black Ex Hard springs Two (2) blue Hard Springs Two (2) Red Med SpringsCold coiled springs are designed to use with these progressive rates spring. High quality spring steel construction Three