JS-12 II is designed with a lightweight 6.6mm shaft, which is 8% lighter than the previous 6.8mm shaft and also reduces the wind resistance by 2.9%. The strength of the frame is also improved by 17.5% with the help from NANOFORTIFY TR+ material.
The single-pass grommet hole construction creates less friction between strings, this effectively reduces tension loss, while extending string life.
PYROFIL carbon fiber and its composites, are advanced high-performance materials from Japan. The characteristic of high intensity bonds ultra-light offer racket excellent shock-absorption and enhance handling in every single game.
Built on the strengths of the NANO FORTIFY TR, the NANO FORTIFY TR+ is engineered with an advanced, more durable carbon-fiber that is firm but offers pleasing resilience and hand-feel.
Introducing highly resilient and durable glass fiber into the multilayered design of the frame to provide better elasticity and comfort during hitting.
Designed by computer simulation and aided with the adoption of injection moulding technique, this revolutionized handle style allows the shaft to move more freely, which can not only make swings smoother but also improve overall handling experience.
String tension LBS
Weight / Grip Size
4U / G5
The material property of PYROFIL greatly enhances the overall elasticity. What’s more, the FREECORE synthetic handle technology is integrated into the high-end Speed series racket for the very first time, making the hitting more stable and comfortable.
JS-12 II has an eye-catching painting, matches perfectly with the streamline watermark sticker, and even delivers a stronger sense of speed. The style setting of “easy swinging and comfortable hitting” further makes it a distinctive Speed racket. Having been through years of growth and evolution, as well as the integration of material and technology, JS-12 II not only bears the spirit of speed, but also ignites our inner passion!