Stiffness of the middle part from the tip is strengthened, the shaft behavior is stable, operability and directionality are improved. ? By making the hand part moderately moderate, it realizes a swing without sense of unity that makes timing easier to get and does not feel a delayed swing. From the downswing to the impact it wastefully returning, returning to the ball without loss and achieving strong trajectory.

  • About cutting method of the shaft When using for 1 W, it is basically not necessary to cut the tip. ? Also when using it for FW etc. please adjust the hardness within the range where the insertion length into the hosel + tip cutting does not exceed the parallel length of the shaft tip.
  • Please be aware that inserting into the hosel beyond the parallel length to the shaft tip end, inserting it into the hosel after cutting the tip end of the shaft more than the painted surface may lead to breakage of the shaft.
  • Please be careful because it will cause shaft crack if tightening the shaft too strongly when assembling the club, measuring the frequency, changing the grip, etc.
model Weight 
Tip diameter / Parallel 
Butt diameter (mm) flex Kick 
Shaft length (mm)
BB-5 55 4.3 8.50 / 75 15.10 R2 Medium tone 1168
15.15 R1
57 15.20 S
BB-6 63 3.2 15.15 SR
65 15.20 S
66 15.25 X
BB-7 74 3.0 15.20 S
76 15.25 X
BB-8 84 2.8 15.35 S
85 15.40 X