Butterfly Harimoto Tomokazu Innerforce ALC

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Blade description

Construction and Build

The Harimoto Tomokazu Innerforce ALC is a composite blade featuring a 5+2 construction. It utilizes an “InnerLayer” design where the Arylate-Carbon (ALC) layers are placed closer to the core, rather than directly beneath the outer plies. This configuration, paired with limba outer veneers, results in a distinct “all-wood” feel that prioritizes touch and dwell time over the stiff, rigid sensation typical of outer-carbon blades.

Playing Characteristics

This blade is engineered for high-spin, controlled offensive play, particularly for close-to-the-table looping and counter-looping. Due to its internal carbon placement, the blade maintains a crisp and responsive feel during touch shots and blocking, but it requires active input from the player to engage the carbon layers for maximum speed. It is characterized by high dwell time, which facilitates heavy spin generation on top-spin strokes.

Performance and Recommendations

The blade features a slightly larger head size compared to standard blades, which contributes to a more head-heavy balance and increased stability during defensive and blocking maneuvers. While the blade is highly versatile, it is sensitive to rubber selection. Users note that pairing this blade with softer, slower rubbers can lead to a sluggish response; consequently, it is best suited for players who utilize medium-to-hard sponge rubbers (such as 47-50 degree tensors or hard Japanese/Chinese rubbers) to unlock its full power potential. It is generally recommended for spin-oriented attackers who value consistency and placement over raw, direct speed.

Also Known As

  • Chinese: 张本智和INNERFORCE ALC (slang: 张本alc, 张本内力)
  • Japanese: 張本智和 インナーフォース ALC (slang: 張本ALC)
  • German: (slang: Harimoto ALC)

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Recent Reviews

#1 — August 2026

Probably the best Innerforce I tested so far, mainly because with this one it’s better and safer to block. It’s soft when driving or spinning, but it’s hard enough when blocking—so stable. Backhand dwell time and grip on the ball are amazing, as is the short game and serve receive. Speed is OFF-

#2 — January 2026

Excellent control. I paired it with Dignics 09 °C on the forehand. Loving the control and the power when hitting hard!

#3 — December 2025

Using this blade for one and a half years on a very regular basis, and lately as my main blade. Short game, it feels like an all-wood touch, and when you engage the wood with more power or mid-distance, the carbon activates and you get that nice click sound and feel of other carbon blades. The blade gives me max control and feel, a similar experience I had with the Timo Boll ALC, but softer in touch. It pairs well with medium-hard to hard rubbers. It will balance the arc then. The speed is less than other similar carbon blades, but you will get control in return, which helps with placement. Still definitely no beginner’s blade. You still need some skill, experience, feel, and technique to get control and max out of this blade. Weak point becomes the speed when you play far away from the table. The speed will be less and you are vulnerable for counterattacks if you don’t compensate that lack of speed with your own power. Mid-distance and certainly close to the table, you won’t notice any speed difference comparing to other similar Innerforce ALC blades.

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