This is an optional Axial 14x70mm Shock Spring Set (Soft - 1.75 lbs/in), and can be used with any vehicle that uses the Axial 72-103mm shock set, as well as the Axial XR10.
Features:
New spring rates
Ideal for the Axial XR10
Fits all Axial 72-103mm shock sets
New springs add more tuning options to the already existing spring rates