Weight
86g
Thickness
8.2mm
Plies
7-ply
Material
Hybrid
Head Shape
Custom
Balance
Handle-Heavy
Haruvatart JP Round
Butterfly Haruvatart JP Round is a high-speed Japanese penhold blade built for aggressive, fast-paced play. It delivers exceptional offensive power and direct response, making it ideal for advanced players who prioritize speed and powerful attacks. The hybrid construction with carbon layers provides a stiff, hard feel that demands excellent technique and footwork to control its immense power effectively.
This 7-ply hybrid construction features a symmetrical build with outer Koto layers, carbon fiber layers, and a central Kiri core. The carbon placement enhances stiffness and speed, while the wood provides a foundational feel. The structure is designed for maximum power transfer in an offensive penhold format.
TT Sensei Ratings
✦Our expert analysis of this blade's performance characteristics
Haruvatart JP Round is an exceptionally fast blade, designed for maximum offensive output. Its construction facilitates rapid energy transfer, resulting in explosive drives and smashes. Players report it as one of the fastest blades available, making it a potent weapon for ending points quickly from mid-distance and beyond.
Control is moderate, demanding a high skill level from the player. The blade's immense speed naturally reduces margin for error, requiring precise timing and technique. Experienced offensive players can manage it, but beginners and intermediates will likely struggle with consistency. Some variants with different carbon compositions may offer slightly better ball retention.
Haruvatart JP Round provides a very hard, direct feel upon ball contact. This characteristic is typical of speed-oriented composite blades, offering crisp feedback and a powerful, responsive sensation that favors flat hits and drives over soft touch.
The throw angle is estimated to be medium-high, complementing its offensive nature. This helps produce penetrating, arcing shots that clear the net with pace and depth, ideal for powerful loops and smashes.
Dwell time is estimated to be medium. While the hard, fast nature suggests a shorter contact, some construction aspects may allow for slightly longer ball holding compared to pure carbon blades, aiding in spin generation for powerful loops.
The blade is very stiff, offering minimal flexibility. This stiffness is key to its direct power transfer and high speed, but it reduces forgiveness, making it less ideal for players who rely on blade flex for spin or absorbing pace.
Vibration is moderate to high, transmitting a crisp, distinct feedback to the hand. This is common in stiff, power-focused blades and provides clear sensation on solid impacts, though it may reduce subtlety for delicate shots.
Butterfly's renowned craftsmanship is evident in the Haruvatart JP Round. It features premium materials, precise assembly, and excellent build quality. The finish and durability are typical of high-end Butterfly blades, providing confidence in its performance and longevity.
Technology
Haruvatart JP Round utilizes Butterfly's advanced composite layering, strategically placing carbon fiber between wood plies to maximize speed and power. The 'JP Round' shape is specifically engineered for the Japanese penhold grip. While specific carbon types may vary, the construction philosophy focuses on creating a stiff, responsive blade for high-speed offensive play. Some variants in the line incorporate materials like ZL Carbon, known for offering a favorable balance of speed and control.
Pro Players Using This Blade
Kim Taek Soo
While not confirmed as his exact model, the Haruvatart JP Round is often compared to blades used by aggressive professionals like Kim Taek Soo. It shares a similar high-speed, powerful profile suited for an all-out offensive game, but is noted by players for potentially offering more control, making it a modern tool for similar playing styles.
Similar Blades
Butterfly Haruvatart ZL Carbon
The Haruvatart ZL Carbon is a direct variant that uses ZL Carbon technology. This material is known to hold the ball slightly longer than standard carbon, making heavy topspin easier to produce. It offers a similar offensive threat but with a reportedly higher control-to-speed ratio, providing a potentially more manageable feel for players seeking extreme power with slightly more dwell time.