Kevlar Triax is designed to reduce ovalling on the Motore Speeder VC6.0. What that means is throughout the swing and at contact the shaft will maintain it's circular shape. What this actually does increase stability of the head during impact.
Fujikura Motore Speeder VC 6.0 Optifit 2 Shaft Reviews
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Customize Fujikura Motore Speeder VC 6.0 Optifit 2 Shaft
Customize Fujikura Motore Speeder VC 6.0 Optifit 2 Shaft