Hot Racing Traxxas Linear Rate Rear Spring Set (3) (Slash/Stampede) SLF63MR268 These are the Hot Racing Traxxas Slash and Stampede Linear Rate Rear Spring Set. These optional rear linear rate springs are intended for the Traxxas Slash and Stampede platforms. This set features three different rate options of rear springs that will allow you to further tune the shocks to your liking and driving style Features: High quality spring steel Color coded for easy identification Perfect fit for the Traxxas Slash and Stampede platforms Three different rate options Specifications: Free Length: 65mm Inner Diameter: 15.5mm Wire Diameter: 1.4mm (Soft), 1.5mm (Medium), 1.6mm (Firm) Turns: 13T Includes: (2) Soft Red springs (2) Medium Chrome springs (2) Firm Blue springs