Skid & Snap is the main concept in all of the “KATANA” series, but this latest work “KATANA Gengetsukou” is a masterpiece with hidden power that surpasses all previous works. Completed. Using the “KATANA Asymmetric Core”, which has excellent twisting performance among the cores of Radical, this work creates a KATANA that can more strongly embody the impact of the first generation, which can be said to be the beginning of the hit legend of the KATANA series. I put all my effort into it. Among them, the most in-depth study was about matching the potential of the core that can be drawn out through the dynamic core and the corresponding cover stock.