Matrix Radix S 4 Series .335 Graphite Wood Shaft The Matrix Radix S 4 Series .335 Graphite Wood Shaft is a follow up structure to the successful line of shafts introduced in 2011. Radix is Latin for in.base in. or in.root in.. The base for Radix is The HD design, giving Radix the most advanced internal structure in its class. Along with the internal structure, an experimental, variable, tip-to-butt ratio design is introduced with with this shaft. The ratio specs change by flex – ball flight lowers as flex stiffens, adjusting for the progressive needs of progressively harder swingers. Price: $ 135.0 Read More and Buy it here!