Progress BB4 Driver

Fly with a wave sole!
In the driver head, the head causes impact deformation by the impact of the ball.
BB4 takes advantage of the head deformation caused by the impact to push the ball forward without increasing the amount of backspin, thereby increasing the distance.

As a head, one model with a loft angle of 10.5°.
The angle of the head can be changed depending on how the sleeve is inserted.

It is said to have the most effective range effect at a head speed of 38-42 m/s.
The degree of conformity depends on the amount of backspin and the angle of hitting.
However, the faster the head speed, the faster the separation of the ball, the more separation of the ball from the ball before the head pushes the ball out, and the BB4's unique range effect tends to be weakened.

Accessories: torque wrench, head cover,

thor screw weight standard 6g,
screw weight sold separately
3g and 8g-2,000 yen (tax excluded)
10g, 12g and 14g-2,200 yen (tax excluded).

Loft	10.50（9.5度〜11.5度）
Lie	59.0°（59.0度〜61.0度）
Volume	455cc
Weight	197g
Face Angle	±0°（OP1.0度〜H1.0度）
Material	Face：6-2222S αβ Titanium
	Body：8-111Titanium

※We do not sell parts for the head alone.

You can also select parts that are not listed in the order club options.You can order from the following manufacturers.

Trading Manufacturers

Shaft
Fujikura/Mirsubishi/GraphiteDesign/Roddio/USTMamiya/Triphas/Composite Techno/TRPX/Syncagraphite/Dead or Alive/Gravity/Threering/Sankiplanaria/S-trixx/True Temper/Nippon Shaft/Shimada Golf/KBS/Design Tuning/Stability/Reve/Auto Flex/&etc.

Grip
Golf Pride/Iomic/Elite Grip/STM/No,1/Susas/Winn/Palmax/Cadero/Super Stroke/Masuda Golf/Muziik/Perfect Pro/&etc.