Gamma RZR Bubba (137) Tennis Racquet

Gamma RZR Bubba (137) Tennis Racquet

This product is currently out of stock and unavailable.

Spec Type: Oversize Specs
Head Size: 137 Sq. Inches
Racquet Length: 29 Inches
Strung Weight: 10.4 Ounces
Balance: 15.4” / 390 mm (HH)
Racquet Stiffness: 65
Beam Width: 22-24-22 mm Tapered Beam
Power Level: High
Swing Speed: Slow
Grip Type: RZR Tac
String Pattern: 18 Mains x 21 Crosses
String Tension: 55-65 Pounds

The Gamma RZR Bubba (137) Tennis Racquet continues the Bubba tradition with a 137 in head size providing outstanding power, fewer mis-hits and the largest sweet spot of any legal racquet in the game. To improve the Bubba’ maneuverability, GAMMA’s Concept Design Team, Black Racquet Labs, applied RZR Advanced Aerodynamics to the classic Big Bubba frame. The challenge was to take the game’s largest legal frame and allow players with slower, shorter swings to maneuver the RZR Bubba with greater ease.  Applying the RZR Advanced Aerodynamics design principles, designers were able to create a faster, more maneuverable frame while maintaining the reach, forgiveness, power and sweet spot of the original Big Bubba.

  • Ideal for beginners and recreational doubles players.
  • Requires 43 feet of string for re-stringing. (Most string packages come in 40ft packs.)
  • Item #: RGRZB


  • RZR™ Advanced Aerodynamics: Unique geometric contoured shapes designed to deflect and streamline airflow around the RZR frame. These shapes provide the least amount of air resistance and drag, greatly enhancing maneuverability and racquet speed on all shots.
  • MCarbon: A composite matrix that increases strength at key points throughout the RZR frame. The result is an optimal combination of stiffness and flexibility that offers maximum power transfer on all shots.
  • Multi-Directional Layering: Carbon sheets are layered in pre-calculated directions to precisely control the fiber angle in each area of the RZR frame. This ensures optimum strength and stiffness throughout the racquet.
  • Minimized Voids: RZR frames are made using a process that removes entrapped air from the composite matrix to minimize voids between fiber layers that can fatigue the structure. Minimized voids result in maximum frame durability and a solid, comfortable feel.


Weight 3 lbs
Dimensions 1 × 1 × 1 in
Grip Size

4 1/8, 4 1/4, 4 3/8, 4 1/2, 4 5/8