LENGTH: 675 mm
WEIGHT / GRIP SIZE: 3U / G4, G5 4U / G5
STRING TENSION LBS: 3U ≦30 lbs 4U ≦29 lbs
FRAME MATERIAL: High Resilient Modulus Graphite + TERS + HARD CORED TECHNOLOGY
SHAFT MATERIAL: High Resilient Modulus Graphite + PYROFIL + TERS + 6.8 SHAFT
RACKET RESPONSE INDICATOR: 
FEATURE
A new Speed racket engineered with the advanced Twin Epoxy Resin System (TERS), JS-12 comes with stiff frame and resilient shaft, offering easy controllability for net shots and massive force for sweeping movement, most suitable for fast players.
TECHNOLOGIES
The single-pass grommet hole construction creates less friction between strings effectively reducing tension loss while extending string durability.
Innovative technology combining the two popular frame structures SWORD and AERODYNAMIC, the AERO-SWORD can efficiently reduce air resistance while allowing a faster and greater hitback
PYROFIL carbon fibre and its composites are advanced high-performance materials from Japan. The characteristics of high intensity bonds ultra-light offers excellent racket shock absorption and enhances control.
Inspired by military helicopters, multi-layered structure made by carbon fibre and composites are used to minimize material size, reinforce handling feel and performance at a critical standard.
Engineered with US-imported aerospace-level materials, the Twin Epoxy Resin System (TERS) stiffens the frame further, provides the best elasticity and achieves holeless compact structure through automatic ventilation. TERS enables efficient force transmission and keeps amazingly stable and sturdy controllability during fast attacks and defence.