Traxxas GTM Shock Spring. These optional springs give ...
you the ability to tune the suspension on your TRX-4M rock crawler. Traxxas offers a wide variety of spring rates for the GTM shocks to provide almost limitless tuning possibilities. Package includes ...
Under light-duty driving, the progressive rate springs soak ...
up the small bumps as a softer spring would, but when the conditions get rough and the jumps get big, the progressive rate springs step up to the challenge by getting firmer ...