Callaway · Driver · 2021 · Previous model
Callaway Big Bertha B21 driver
Game improvement, 3.0 of 5 for forgiveness
Callaway's 2021 Big Bertha for golfers who slice: draw-bias weighting inside the head, a low, forward centre of gravity for a high launch with low spin, and a light carbon crown, in 9°, 10.5° or 12.5°. Callaway no longer sells the Big Bertha B21 new, and the Big Bertha (2023) replaced it; Callaway's draw-biased driver today is the Quantum Max D.
3.0 of 5 forgiveness score
$199.99 used at 2nd Swing Golf
In average condition or better: from $249.99
New instead: Callaway Quantum Max D, $649.99 at Golf Discount, checked 2 Nov
Choose it if
- You want some help on mishits, short of the maker's most forgiving head.
- You slice: the head has a draw bias built in.
- You play left-handed: it was made left-handed in 9° and 10.5°.
- You need a softer shaft: it came in Light, the flex Callaway's buying guide calls senior.
- Class
- Game improvement
- Stock lofts
- 9° · 10.5° · 12.5°
- Slice help
- Draw bias built into the head
- Stock flexes
- Regular or stiff
- Hands
- Left or right; left-handed in 9° and 10.5° only.
- Used
- From $199.99 at 2nd Swing Golf, checked 31 Oct
What changed in the Quantum Max D
Both are Callaway's draw-biased 460cc drivers. The B21 builds its draw bias into the head's weighting and sets its centre of gravity low and forward for a high launch with low spin, with a light carbon crown, in 9°, 10.5° and 12.5° (the 12.5° right-handed only), 45.75 inches long. The Quantum Max D, which Callaway sells on maximum forgiveness, puts its weight inside the heel for a slight draw, comes in 9°, 10.5° and 12° in both hands, and has Callaway's Tri-Force face of titanium, polymer mesh and carbon fibre. The Big Bertha (2023) came between them.
No shop we checked sells the B21 new, and used it costs a fraction of a new Quantum Max D. Choose it for a cheap slice-fighting head, with a 12.5° loft for right-handers; choose the Quantum Max D for more forgiveness and the newer face.
| Detail | Big Bertha B21 (previous) | Quantum Max D (current) |
|---|---|---|
| Class | Game improvement | Maximum forgiveness |
| Forgiveness score | 3.0 of 5 | 4.0 of 5 |
| Stock lofts | 9° · 10.5° · 12.5° | 9° · 10.5° · 12° |
| Slice help | Draw bias built into the head | Draw-biased head, built to reduce a slice |
| Stock flexes | Regular or stiff | Regular or stiff |
| Hands | Left or right; left-handed in 9° and 10.5° only | Left or right |
| Price new | No longer sold new | $649.99 at Golf Discount, checked 2 Nov |
| Price used | From $199.99 at 2nd Swing Golf (9°, regular flex, below average condition), checked 31 Oct | From $379.99 at 2nd Swing Golf (10.5°, stiff flex, average condition), checked 31 Oct |
Build a whole bag around it, or check the lofts in the bag you carry.
Big Bertha B21: the questions buyers ask
- Is the Callaway Big Bertha B21 forgiving?
- Moderately. It is Callaway's game improvement driver, with lofts up to 12.5°. It scores 3.0 of 5 on our reading of what Callaway publishes about it; the most forgiving drivers we cover score 4.0.
- Who is the Big Bertha B21 for?
- It suits golfers who want some help on mishits, short of the maker's most forgiving head, with a draw bias built in for a slice.
- Does the Big Bertha B21 come in senior or ladies flex?
- Senior, yes, as Callaway names it: Light, the flex its buying guide calls senior. Callaway listed Light, regular (R) and stiff (S).
- Is the Big Bertha B21 sold left-handed?
- Yes, at 9° and 10.5°; Callaway made the 12.5° right-handed only.
- How much does the Big Bertha B21 cost?
- Callaway no longer sells it new. Used from $199.99 at 2nd Swing Golf, checked 31 Oct. In average condition or better, from $249.99. Prices change; the seller's page has today's.
How the 3.0 adds up
The forgiveness score is our reading of what Callaway publishes about the head, from 1 to 5. It is not a test result. How every score works.
| Part | Points | Why |
|---|---|---|
| Head | 3 | A game improvement driver head, not the most forgiving kind Callaway made. |
| Forgiveness score | 3.0 | of 5 |
Draw help, lofts, flex and hand don't change the score. They decide which version fits you, and the picks for a slice or a slow swing use them.
Specification sheet
| Maker | Callaway |
|---|---|
| Model | Big Bertha B21 |
| Model year | 2021 |
| Type | Driver |
| Class | Game improvement |
| Handicap range the maker states | – |
| Offset | – |
| Sole | – |
| Moment of inertia (MOI) | – |
| Face technology | A.I. designed Flash Face SS21, for fast ball speeds across a larger area of the face; two internal Jailbreak bars; T2C triaxial carbon crown |
| Construction | A 460cc head with a carbon crown, two Jailbreak bars behind the face, draw-bias weighting inside the head and a 60° lie. 45.75 inches, on Callaway RCH shafts from the 45-gram class up. |
| Stock steel shafts | – |
| Stock graphite shafts | Callaway RCH 45, Callaway RCH 55, Callaway RCH 65 |
| Stock flexes | R (regular), S (stiff) |
| Stock lofts | 9° · 10.5° · 12.5° |
| Hands | Left or right; left-handed in 9° and 10.5° only. |
| Men's or women's | Men's |
| List price when new | $499.99 (2021 model); not a price today |
| Price at Callaway | – |
Compare with other game improvement drivers
No matching clubs. Clear the search or loosen the filters.
| Lofts | Slice help | Hand | Where to buy | |||||
|---|---|---|---|---|---|---|---|---|
Mizuno JPX ONE (2026) | 3.0 | Game improvement | 9° · 10.5° · 12° | – | R · S · X | RH · LH | $450 at Mizuno checked 2 Nov | |
Callaway Quantum Max (2026) | 3.0 | Game improvement | 9° · 10.5° · 12° | Draw setting on the adjustable weight | R · S · X | RH · LH | $649.99 at Golf Discount checked 2 Nov | |
Callaway Quantum Max Fast (2026) | 3.0 | Game improvement | 10.5° · 12° | – | not published | RH · LH | $699.99 at Golf Discount checked 2 Nov | |
| 3.0 | Game improvement | 9.5° · 10.5° · 11.5° | – | R | RH · LH | $799.99 at XXIO checked 2 Nov | ||
| 3.0 | Game improvement | 9° · 10.5° · 12° | – | A · R · S | RH | $299.99 at Tour Edge checked 2 Nov | ||
TaylorMade Kalea Gold (2024) | 3.0 | Game improvement | 11.5° · 13.5° | – | L | RH | $499.99 at TaylorMade checked 9 Oct | |
| 3.0 | Game improvement | 10.5° · 12° | – | L | RH | $699.99 at Golf Discount checked 2 Nov | ||
| 3.0 | Game improvement | 10.5° · 11.5° · 12.5° · 13.5° | – | L | RH | $799.99 at XXIO checked 2 Nov |
Order: Most forgiving in this class first, then price. Use the arrows to sort. A dash means the maker does not publish it.
See all drivers on the most forgiving driver page, or compare this club side by side. Waiting for a sale? The Black Friday golf club deals page has the price to beat on every club we price.
Sources
The specification comes from these pages; open the maker's page before buying, because prices and shaft options change. Check the exact shaft and hand at the shop before ordering.
- Callaway's specifications, archived copy of 14 Apr 2021
- Callaway's specifications, archived copy of 8 Dec 2021
- Callaway's specifications, archived copy of 29 Jul 2025
- Callaway's page on availability, archived copy of 17 Jun 2026
- 2nd Swing Golf's used listings (checked 31 Oct)
- Pre-owned: seen at 2nd Swing Golf from $199.99 (checked 31 Oct)