LI - NING AXFORCE BLAST 4U

🧠 On-Court Character & Profile

The Li-Ning AxForce Blast 4U is an absolute power powerhouse in the intermediate segment. Weighing 80–84 grams (4U) and boasting a distinct head-heavy balance, this specific version is designed to put massive mass and momentum behind your overhead shots.

Because it pairs that heavy frame head with a 7.00mm slim flexible shaft, it behaves like a whip. It doesn't require professional-level arm speed or flawless timing to generate steep downward angles—the racket naturally flexes deep during your swing and snaps forward explosively to maximize your raw smash power.

⚙️ Core 4U Specifications

🚀 Key Strengths for the 4U Model

• Pro-Level Tension Support: Thanks to its high-modulus carbon fiber and TB Nano construction, the 4U frame is reinforced to handle custom string tensions up to 32 lbs. This is incredibly high for a flexible intermediate racket, allowing advanced club players to tighten their string bed for sharp placement and crisp feedback.

• The Sonic Boom Advantage: It features Li-Ning's Sonic Boom Impact System, which actively channels air pressure through the frame on high-speed releases. When you hit a clean smash from the back line, it produces a sharp, booming acoustic pop that adds a great psychological edge to your games.

• Forgiving Sweet Spot: The Dynamic Optimum Frame pushes the isometric hitting zone slightly higher up the head. When you are forced into quick defensive blocks or late reflex clears, it minimizes frame twisting and keeps your returns stable.