Reinforce SI

Reinforce SI occupies a sweet spot in the offensive speed category. It's not an uncontrollable rocket, but provides more than enough pace for assertive attacking play. The inner carbon placement ensures power is readily available when you swing through the ball, yet the blade maintains a manageable feel that prevents shots from flying long. Many players find its true speed potential is fully unlocked when paired with dynamic rubbers, creating a setup that's fast yet remarkably predictable.

Control is where this blade truly shines. Players consistently praise its exceptional accuracy and predictability, rating it among the best in its class. The wood-dominated feel on touch shots allows for delicate placement and heavy spin, while the strategic carbon integration ensures stability even on powerful strokes. This high level of control builds confidence, letting you focus on tactics and shot selection rather than wrestling with the blade, making it ideal for players who value consistency in their rallies.

Reinforce SI offers a medium feel that beautifully bridges wood and carbon sensations. On light contact, it presents a comfortable, almost woody feedback with good ball sensation. As impact increases, the response becomes crisper and more direct, revealing the carbon's presence without becoming overly stiff or harsh. This balanced feel provides excellent communication for all types of strokes.

It produces a medium-high throw angle, ideal for offensive looping and driving. The arc helps shots clear the net safely with good margin, while the inherent power ensures the ball carries deep into the opponent's court. This makes it excellent for generating heavy, topspin-oriented attacks.

Dwell time is a standout feature. The blade is engineered to hold the ball slightly longer, especially on brush-looping and spin-oriented strokes. This extended contact makes it easier to load the ball with heavy spin and provides a forgiving margin for error, greatly enhancing control during offensive rallies and service returns.

The blade possesses a medium level of flexibility. It has enough give to aid in spin generation and a catapult effect on loops, but remains stable and direct for blocks and drives. This flexibility contributes to its well-rounded character, allowing it to adapt to both finesse and power play effectively.

Vibration is present at a moderate level, offering useful feedback without being distracting. You can feel a clear sensation of ball contact, which aids in touch shots and helps gauge the quality of your stroke. It's not a dead feel, nor is it excessively buzzy, striking a good balance for players who appreciate feeling their shots.

Yasaka maintains its strong reputation for quality with the Reinforce SI. The construction feels solid and durable, with clean finishes and consistent play characteristics. Its JTTAA approval is a mark of adherence to recognized manufacturing standards. While specific longevity ratings are scarce, the overwhelmingly positive user feedback regarding performance and feel points to a well-made product that offers reliable performance over time.