Item #: 10CALBB21DMLH
Callaway Golf
Callaway Golf LH Big Bertha B21 Driver (Left Handed)

Callaway Golf LH Big Bertha B21 Driver (Left Handed)

Their Price: $499.99 Rock Bottom Price: $329.99
Save $170.00

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At Rock Bottom Golf, your satisfaction is our top priority! If for any reason you are not completely satisfied with your qualifying purchase, you may return that product for full store credit. Look for the 90 Day Performance Guarantee icon for all qualifying products.

Big Bertha B21 Driver

Distance Any Way You Swing It

You could be hitting the ball farther, and that's why we're bringing out the new Big Bertha B21. It's a new formula for distance, built to take the big miss out of your game and invite you back to the fairway.

Features &

  • Unlock Your Inner Distance
    If you want to hit the ball farther, you have to hit it straighter. And to help eliminate your slice or big miss, we've created our first high launch driver with an ultra-low forward CG for low spin. It's a new formula for distance to give you a more consistent ball flight, and more tee shots that find the fairway.

  • Fast Ball Speeds From Our A.I. Designed Flash Face SS21
    We've advanced our A.I. designed Flash Face to promote fast ball speeds across a more expansive area. So you'll still hit it a long way, even when you miss the center of the face.

  • Easy To Hit From Bertha Shaping And Added Draw Bias
    Built to improve your launch angles, and stop your slice. The large Big Bertha head is specifically engineered with internal draw bias weighting for a straighter, longer ball flight.

  • Super Strength Materials For High, Consistent Ball Speeds
    Promotes optimal speed, forgiveness and spin characteristics from a face architecture that's extremely strong and lighter than traditional titanium.

  • Jailbreak + T2C Triaxial Carbon Crown For Ball Speed and Unconventional Forgiveness
    Two internal Jailbreak bars connect the sole and crown to promote fast ball speeds, and the significantly lighter carbon crown allows us to redistribute weight for higher MOI.


Model (*) Loft (*) Standard Length (") Lie (*) Clubhead Volume (CC) Swing Weight
9 Adjustable (8-11) 45.75 60 460 D2
10.5 Adjustable (9.5-12.5) 45.75 68 460 D2
12.5 Adjustable (11.5-14.5) 45.75 60 460 D2

RCH Shaft Specifications

Shaft Flex Shaft Weight (g) Torque Kickpoint
RCH 45 Light 45 High Low
RCH 45 Regular 45 High Low
RCH 55 Light 55 High Low
RCH 55 Regular 55 Mid Low-Mid
RCH 55 Stiff 55 Mid Mid
RCH 65 Regular 65 Mid Mid
RCH 65 Stiff 65 Low-Mid Mid
Callaway Golf
Open Box:
Length & Lie:
Included (Matching)
Mens Left Handed
Tour Velvet 360 Soft 46g
Shaft Material:
Shaft Name:
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Big Bertha B21
New, Factory Sealed
90 Day Guarantee!
(1) Big Bertha B21 Driver
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Product Reviews
By Nate
Great Control from the Teebox
January 12, 2022
This is marketed as the 'anti-slice' driver, but I bought this because I've always used Big Bertha. This driver still has the feel of the classic big bertha and has given me great control from of the teebox. I'm hitting more fairways now than ever with extra distance on top of my previous driver.
  • Adjustable
  • Toe-heavy for natural fade players
  • Looks fantastic
  • Jailbreak
By David B.
New Zealand
B21 is Number 1
November 14, 2021
Without a doubt, this is the best driver I have had in the last decade. Right from the get-go, I gained 15 yards per drive and once I got to grips with it probably longer. Thoroughly recommend this club to anyone trying to improve the driving part of their game.
Also big shout out for Rock Bottom. They promised a date it would arrive and so it did. Also the best price I could find and I searched around a lot. Cheers!!
By Sylvan m.
Ottawa Ontario canada
Best drive for me
September 7, 2021
Reduce my slice quit a bit love this driver
  • Feel / gain distance
  • None
By Murfdiggidy
Great driver
May 23, 2021
Was a bit worried that the shaft was too light but I really like the feel
By Susan
Wake Forest NC
Nice looking driver
April 15, 2021
Got this driver wanting more distance and when I hit it right it did pretty well. I didn�€™t feel worth the extra money as I didn�€™t get much more length than with my Ping G410 Plus so I sold it to my friend who is happy with the club.
By Jim
Callaway B21 Driver
March 5, 2021
As advertised this driver helps eliminate your slice
By Pete
Southern Ilinois
Nice club!
December 31, 2020
Very light. Good sound off the ball. Classy head cover. Drives straight.
By P c.
Great new driver
November 22, 2020
Replaced my M6 with the Big Bertha and I love it. Definitely straighter off the tee and longer. I am 53 years old and it has been a game changer.
  • Very light and easy to swing
  • Pricey