GOSENGOSEN

Strike A Shuttlecock on The CentroidStrike A Shuttlecock on The Centroid

GRAVITAS

GRAVITAS

Development of badminton racket by shuttlecock orbit.

1. Analyzation of the mechanism of deforming the shuttlecock from initial speed to final speed.

¢ª Analyzation of impact zone (Sweet Spot) by shuttlecock¡Çs initial velocity.

2. Shaft orbits after impacting the shuttlecock.

¢ªDeveloped the shaft (Flex and torque) which is suitable for the player's hitting speed.

MAJOR FEATURE OF GRAVITAS SERIES

Impact Zone Design Concept - Ryoga Assault Dive System
0.001sec

Shuttlecock speed becomes fastest after bounding the feather part.

0.003sec

Shuttlecock speed starts slowdown as 75% from initial speed. Overall shuttlecock is deflated, but feather runs over enlargement and shrink.

0.004sec

Cork part is upward and shuttlecock does not rotate while maintaining the speed.

0.010sec

Cork part is downward; and the shape of shuttlecock becomes stable shape.

0.012sec

Shape of shuttlecock restores and it rotate as anticlockwise, after that speed starts slowdown.

¢¨N=116times

TESTED BY Photoron
HEAVY STRIKERHEAVY STRIKER

GRAVITAS 8.0-SXGRAVITAS 8.0-SX

BLACK GOLD

TOP HEAVY 4U DESIGN + RIGID SHAFT FOR POWER PLAYER.

  • GRAVITAS 8.0-SX image1
  • GRAVITAS 8.0-SX image2
  • GRAVITAS 8.0-SX image3
  • GRAVITAS 8.0-SX image4
GRAVITAS 8.0-SX image5
Model number BGV80SX
Length Whole length 675mm
Grip length 200mm
Face area 51.62SQ inch
Thickness of frame at 12 o¡Çclock 11.5mm
Thickness of frame at 3 & 9 o¡Çclock 11.0mm
Thickness of frame at 6 o¡Çclock 10.5mm
External diameter (Shaft) 6.70mm
Grip size G5
Weight 82-84G
Frame Shape OG SQUARE
Design ASSAULT DIVE SYSTEM
Material PYROFIL BY MITSUBISHI CHEMICAL
Shaft Flex 8.0mm
Flex No. SX (STIFF EXTRA STIFF)
Flex point Middle
Material PYROFIL BY MITSUBISHI CHEMICAL
Grip Material Wood
Characteristic of racket Characteristic FOR SMASH
Flex STIFF
¢¢¢¢¢¢¢¢¢¢¢£¢¢
Swing balance (measured by GM31) TOP HEAVY
¢¢¢¢¢¢¢¢¢¢¢£¢¢
Stringing Stringing pattern M22 ×C21
Recommended tension 20-28LBS
Maximum tension 30LBS
Recommended string G-TONE 5/ G-TONE 9
Color Black Gold (BG)
Target player Men¡Çs Intermediate/Advanced
Lady¡Çs Advanced
Country of origin China
Model number BGV80SX
Length
Whole length 675mm
Grip length 200mm
Face area 51.62SQ inch
Thickness of frame at 12 o¡Çclock 11.5mm
Thickness of frame at 3 & 9 o¡Çclock 11.0mm
Thickness of frame at 6 o¡Çclock 10.5mm
External diameter (Shaft) 6.70mm
Grip size G5
Weight 82-84G
Frame
Shape OG SQUARE
Design ASSAULT DIVE SYSTEM
Material PYROFIL BY MITSUBISHI CHEMICAL
Shaft
Flex 8.0mm
Flex No. SX (STIFF EXTRA STIFF)
Flex point Middle
Material PYROFIL BY MITSUBISHI CHEMICAL
Grip
Material Wood
Characteristic of racket
Characteristic FOR SMASH
Flex STIFF
¢¢¢¢¢¢¢¢¢¢¢£¢¢
Swing balance (measured by GM31) TOP HEAVY
¢¢¢¢¢¢¢¢¢¢¢£¢¢
Stringing
Stringing pattern M22 ×C21
Recommended tension 20-28LBS
Maximum tension 30LBS
Recommended string G-TONE 5/ G-TONE 9
Color Black Gold (BG)
Target player
Men¡Çs Intermediate/Advanced
Lady¡Çs Advanced
Country of origin China
ALL-AROUNDERALL-AROUNDER

GRAVITAS 7.0-SRGRAVITAS 7.0-SR

WHITE BLUE

MID BALANCE 4U DESIGN + 6.7mm SLIM SHAFT FOR ALL-AROUND PLAYER.

MID BALANCE 4U DESIGN + 6.7mm SLIM SHAFT FOR ALL-AROUND PLAYER.

  • GRAVITAS 7.0-SR image1
  • GRAVITAS 7.0-SR image2
  • GRAVITAS 7.0-SR image3
  • GRAVITAS 7.0-SR image4
GRAVITAS 7.0-SR image5
Model number BGV70SR
Length Whole length 675mm
Grip length 200mm
Face area 51.62SQ inch
Thickness of frame at 12 o¡Çclock 9.5mm
Thickness of frame at 3 & 9 o¡Çclock 9.3mm
Thickness of frame at 6 o¡Çclock 10.5mm
External diameter (Shaft) 6.70mm
Grip size G5
Weight 82-84G
Frame Shape OG SQUARE
Design ASSAULT DIVE SYSTEM
Material PYROFIL BY MITSUBISHI CHEMICAL
Shaft Flex 8.5mm
Flex No. SR (STIFF REGULAR)
Flex point Middle
Material PYROFIL BY MITSUBISHI CHEMICAL
Grip Material Wood
Characteristic of racket Characteristic FOR ALL AROUND
Flex REGULAR STIFF
¢¢¢¢¢¢¢¢¢£¢¢¢¢
Swing balance (measured by GM31) TOP HEAVY
¢¢¢¢¢¢¢¢¢£¢¢¢¢
Stringing Stringing pattern M22 ×C21
Recommended tension 20-28LBS
Maximum tension 30LBS
Recommended string G-TONE 5/ G-TONE 9
Color White Blue (WB)
Target player Men¡Çs Intermediate/Advanced
Lady¡Çs Intermediate/Advanced
Country of origin China
Model number BGV70SR
Length
Whole length 675mm
Grip length 200mm
Face area 51.62SQ inch
Thickness of frame at 12 o¡Çclock 9.5mm
Thickness of frame at 3 & 9 o¡Çclock 9.3mm
Thickness of frame at 6 o¡Çclock 10.5mm
External diameter (Shaft) 6.70mm
Grip size G5
Weight 82-84G
Frame
Shape OG SQUARE
Design ASSAULT DIVE SYSTEM
Material PYROFIL BY MITSUBISHI CHEMICAL
Shaft
Flex 8.5mm
Flex No. SR (STIFF REGULAR)
Flex point Middle
Material PYROFIL BY MITSUBISHI CHEMICAL
Grip
Material Wood
Characteristic of racket
Characteristic FOR ALL AROUND
Flex REGULAR STIFF
¢¢¢¢¢¢¢¢¢£¢¢¢¢
Swing balance (measured by GM31) TOP HEAVY
¢¢¢¢¢¢¢¢¢£¢¢¢¢
Stringing
Stringing pattern M22 ×C21
Recommended tension 20-28LBS
Maximum tension 30LBS
Recommended string G-TONE 5/ G-TONE 9
Color White Blue (WB)
Target player
Men¡Çs Intermediate/Advanced
Lady¡Çs Intermediate/Advanced
Country of origin China
GAME MAKERGAME MAKER

GRAVITAS 6.0-LAGRAVITAS 6.0-LA

WHITE PINK

WIDE FRAME WITH FLEXIBLE SHAFT FOR GAME MAKER.

  • GRAVITAS 6.0-LA image1
  • GRAVITAS 6.0-LA image2
  • GRAVITAS 6.0-LA image3
  • GRAVITAS 6.0-LA image4
GRAVITAS 6.0-LA image5
Model number BGV60LA
Length Whole length 680mm
Grip length 200mm
Face area 54.97SQ inch
Thickness of frame at 12 o¡Çclock 10.7mm
Thickness of frame at 3 & 9 o¡Çclock 11.0mm
Thickness of frame at 6 o¡Çclock 11.5mm
External diameter (Shaft) 6.70mm
Grip size G6
Weight 80-82G
Frame Shape OG SQUARE
Design ASSAULT DIVE SYSTEM
Material PYROFIL BY MITSUBISHI CHEMICAL
Shaft Flex 10.0mm
Flex No. LA (LADIES AVERAGE)
Flex point Middle
Material PYROFIL BY MITSUBISHI CHEMICAL
Grip Material Wood
Characteristic of racket Characteristic FOR CLEAR / RALLY
Flex SOFT
¢£¢¢¢¢¢¢¢¢¢¢¢¢
Swing balance (measured by GM31) EVEN
¢¢¢¢¢£¢¢¢¢¢¢¢¢
Stringing Stringing pattern M22 ×C21
Recommended tension 20-24LBS
Maximum tension 26LBS
Recommended string G-TONE 5/ G-TONE 9
Color White Pink (WP)
Target player Men¡Çs Beginner/Intermediate
Lady¡Çs All level
Country of origin China
Model number BGV60LA
Length
Whole length 680mm
Grip length 200mm
Face area 54.97SQ inch
Thickness of frame at 12 o¡Çclock 10.7mm
Thickness of frame at 3 & 9 o¡Çclock 11.0mm
Thickness of frame at 6 o¡Çclock 11.5mm
External diameter (Shaft) 6.70mm
Grip size G6
Weight 80-82G
Frame
Shape OG SQUARE
Design ASSAULT DIVE SYSTEM
Material PYROFIL BY MITSUBISHI CHEMICAL
Shaft
Flex 10.0mm
Flex No. SX (STIFF EXTRA STIFF)
Flex point Middle
Material PYROFIL BY MITSUBISHI CHEMICAL
Grip
Material Wood
Characteristic of racket
Characteristic FOR CLEAR / RALLY
Flex SOFT
¢£¢¢¢¢¢¢¢¢¢¢¢¢
Swing balance (measured by GM31) EVEN
¢¢¢¢¢£¢¢¢¢¢¢¢¢
Stringing
Stringing pattern M22 ×C21
Recommended tension 20-24LBS
Maximum tension 26LBS
Recommended string G-TONE 5/ G-TONE 9
Color White Pink (WP)
Target player
Men¡Çs Beginner/Intermediate
Lady¡Çs All level
Country of origin China
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