MITSUBISHI CHEMICAL

Diamana™ BB

The Diamana™ BB Series, the second model in the 6th-generation family, is designed with a smooth, continuous stiffness profile from butt to tip. This structure provides a natural return of flex that many players seek, while also ensuring solid impact even with high-MOI clubheads.
It offers an ideal balance of distance and stability, supporting a repeatable swing path that delivers both power and consistency.

Diamana™ BB

SPEC

Shaft Name Flex Length(mm) Weight(g) Tip O/D (mm) Tip Length(mm) Butt O/D(mm) Torque(deg) Kick Pt.
Diamana BB 43 R2 1168 43.5 8.60 75 15.15 5.1 MID-HIGH
Diamana BB 43 R 1168 44.5 8.60 75 15.20 5.1 MID-HIGH
Diamana BB 43 SR 1168 46.5 8.60 75 15.25 5.1 MID-HIGH
Diamana BB 43 S 1168 48.0 8.60 75 15.30 5.1 MID-HIGH
Diamana BB 43 X 1168 49.0 8.60 75 15.40 5.1 MID-HIGH
Diamana BB 53 R 1168 50.0 8.60 75 15.15 4.9 MID-HIGH
Diamana BB 53 SR 1168 51.5 8.60 75 15.15 4.9 MID-HIGH
Diamana BB 53 S 1168 53.5 8.60 75 15.20 4.9 MID-HIGH
Diamana BB 53 X 1168 55.0 8.60 75 15.25 4.9 MID-HIGH
Diamana BB 53 TX 1168 56.0 8.60 75 15.25 4.9 MID-HIGH
Diamana BB 63 R 1168 60.0 8.60 75 15.30 3.2 MID-HIGH
Diamana BB 63 SR 1168 60.5 8.60 75 15.30 3.2 MID-HIGH
Diamana BB 63 S 1168 61.0 8.60 75 15.30 3.2 MID-HIGH
Diamana BB 63 X 1168 61.5 8.60 75 15.30 3.2 MID-HIGH
Diamana BB 63 TX 1168 62.0 8.60 75 15.30 3.1 MID-HIGH
Diamana BB 73 S 1168 70.0 8.60 75 15.30 2.9 MID-HIGH
Diamana BB 73 X 1168 70.5 8.60 75 15.35 2.9 MID-HIGH
Diamana BB 73 TX 1168 72.0 8.60 75 15.35 2.9 MID-HIGH
Diamana BB 83 S 1168 80.0 8.60 75 15.30 2.8 MID-HIGH
Diamana BB 83 X 1168 80.5 8.60 75 15.30 2.8 MID-HIGH
Diamana BB 83 TX 1168 81.0 8.60 75 15.30 2.8 MID-HIGH
[MADE IN CHINA / MADE IN JAPAN]

TECHNOLOGY

  • X‑link Tech

    X‑link Tech

    A new matrix resin technology that optimizes composition to form a rigid cross‑link structure. Enhances molding properties by up to 14% in strength, 15% in modulus, and 8% in strain-to-failure compared to conventional resins—unlocking MR70’s full potential.

  • Consistent Feel Design

    Consistent Feel Design

    Minimizes weight differences and butt-diameter variation between flexes in same weight class, and butt diameter differences across 40–80 g specs. Reduces sensory mismatch between weights/flexes, enabling smoother set-up from drivers to fairway woods.

  • New Tip Technology

    New Tip Technology

    Optimizes tip torsion alignment to enhance swing stability from top through downswing for large-head/high‑MOI clubs, delivering efficient energy transmission during impact.

MATERIAL

  • DIALEAD™

    DIALEAD™

    Lightweight, high-modulus pitch‑based carbon fiber used in aerospace; its low thermal expansion ensures dimensional stability for superior reinforcement effect.