Butterfly Harimoto Tomokazu Innerforce ALC vs Sanwei Fextra 7: Which Should You Buy?

UltraSpin comparison · 2026-06-13 · blade

Butterfly Harimoto Tomokazu Innerforce ALCSanwei Fextra 7
Our rating8.7/108.3/10
feelsoft, grippy, wood-like with carbon activation on full swingsMedium, woody and well-damped with moderate vibration; controllable offensive feel close to a Stiga Clipper but a touch crisper and not quite as stiff
handleFL/ST/ANFL
plies5 wood + 2 ALC (Arylate-Carbon inner fiber)7-ply all wood (Limba/Ayous)
speedOFF-OFF-
thickness_mm5.96
typeOFF-
weight_g8888

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Choose Butterfly Harimoto Tomokazu Innerforce ALC if: You value high performance and prioritize aggressive offensive play. Rating: 8.7/10.

Choose Sanwei Fextra 7 if: You need forgiving control across versatile playstyles. Rating: 8.3/10.

Butterfly Harimoto Tomokazu Innerforce ALC scores higher (8.7 vs. 8.3), indicating superior overall performance for its intended playstyle.

FAQ

Which is easier for learning to loop?

Butterfly Harimoto Tomokazu Innerforce ALC offers more help due to sponge characteristics.

Which offers the best value?

Sanwei Fextra 7 delivers better value. Sanwei Fextra 7 combines affordability with strong performance.

Which rubber maintains its grip longer?

Both have different longevity patterns handles wear better. Check specific playing conditions in detailed reviews.