Gamma RZR Bubba 137 Racquets

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TW Racquet Experts
Selecting the right racquet and string for your game can be a difficult task. When you consider the tremendous amount of racquets available, and pair them with the even larger selection of strings on the market, you are looking at a mountain of combinations! Here at Tennis Warehouse, we want to make the selection process a bit easier for you. That's why we have a talented group of Racquet Experts on staff to help each player find the right racquet and string combination for their play style. Call or email us with your questions, and a Racquet Expert will be happy to point you in the right direction!

Toll Free: 1.800.799.9230


Hours: M-F 6am-6pm, S/S 9am-6pm


Ordering racquets: Select from the options below to customize your racquet. We string according to your specifications. Follow the instructions below for selecting a string and be sure to enter tension.

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*If the string you want is not in the menu, select "String not in this menu" and on the next page type the name of the string into the stringing instructions. The price of the string will be added to your order once processed.

Stringing information for Gamma RZR Bubba 137 Racquets: Tension range 50 to 65 pounds, optimum 58 pounds. For best overall performance, we recommend stringing with a synthetic gut, multi-filament or natural gut string.

Gamma updates the king of super oversize racquets. With its extended 29 inch length, you cannot get more reach legally. The 137 square inch headsize gives the RZR Bubba a massive sweetspot with very little off-center shock. Ideal for players with shorter strokes, Gamma uses the RZR Advanced Aerodynamics technology to make this one easy to swing. With the extended length, large stringbed and high swingweight (412 RDC), this racquet has all the ingredients for raw power. Surprisingly, for all its pop, our TW playtesters discovered exceptional control from the baseline, even when they swung big. And swinging big was no problem for our testers because this one definitely plays lighter than its beefy swingweight. With its extra length, the RZR Bubba provides major leverage on serves with easy access to spin and pace. Volleys feel extremely stable and powerful, with enough reach for defensive stabs and enough power for easy put-aways. Beginners in search of a very user-friendly racquet or older players who may have lost a step should definitely give this one a serious look.

Note: Due to the super oversize head, please order 2 sets of string.

Strung Specifications

Head Size:
137 sq. in. / 883.87 sq. cm.
Length: 29in / 73.66cm
Strung Weight: 10.4oz / 294.84g
Balance: 7 pts HH
Swingweight: 412
Stiffness: 64
Beam Width: 22mm / 24mm / 22mm /
Composition: 100% Graphite
Power Level: High
Stroke Style: Compact
Swing Speed: Slow
Racquet Colors:
Black/ White
Grip Type: RZR Tac
String Pattern:
18 Mains / 21 Crosses
Mains skip: 7T,9T,11T & 9H
One Piece
No Shared Holes
String Tension: 50-65 pounds

GAMMA RZR racquets were designed reduce drag allowing more acceleration and speed in the natural swing. The rounded radius surfaces, Tapered Bridge Beam and Low Profile Bumper allow the RZR to easily displace and channel air around the frame regardless of the angle of attack, improving racquet head speed on every shot.

Other Items to Consider

  • Wilson Pro Overgrip 12-pack $12.95

    Add a 12 pack of Wilson Pro Overgrips to your Racquet purchase for just $12.95. You Save $3.

  • Add a Zepp Tennis Sensor & Racquet Mount to your order for $99.00.

Other racquets from this series

Gamma RZR Bubba 117 Racquets
Gamma RZR Bubba 117 Racquets
Price: $194.99
Gamma delivers a smaller and more surgical Bubba. This one swings fast, but does not skimp on comfort, stability or power.