Callaway Big Bertha (B21) Driver Adjustment Guide + (CHART)

Is the Callaway Big Bertha B21 driver adjustable?

Yes, the Callaway Big Bertha B21 driver is adjustable. The hosel is adjustable and supports eight different settings for the loft and lie angle combination with the same driver.

Table of Contents

How do I adjust the Callaway Big Bertha B21 driver?

To adjust the Callaway Big Bertha B21 driver, you need to adjust the upper cog in order to increase the standard loft by 2°, or lower the loft by 1°.

The Callaway Big Bertha B21 driver set features three drivers that are the Callaway Big Bertha B21, the Callaway Big Bertha REVA and the Callaway Big Bertha B21 LD Spec drivers. All three drivers can be adjusted using their OptiFit hosels. This hosel encompasses two cogs that can move independently. These cogs can be used to set eight different loft and lie angle combinations for a single driver including the standard combination.

On the loft front, the lower cog can be used to opt for the stated or default loft as well as to raise this loft by 1°. Depending on which cog is used to set the loft, the other cog helps to change the lie angle. The two lie angle options are N for a neutral setting and D for a draw setting. The lie angle settings are available on both the cogs.

The Big Bertha B21 comes with a 7g weight in the heel and a 1g weight in the toe. This positioning enables the driver to support a draw as well as straight and long ball flights. These screw weights can be interchanged using the wrench that comes with the driver. The driver is more suitable for a fade and is ideal for neutral games when the weights are swapped. Both these weights can also be replaced by 3g and 5g weights.

Golfers who have played with different settings find that raising the loft causes more ball spin and high ball launch. On the other hand, when the loft is reduced, the ball spin is less and the ball launch tends to be lower.

Callaway Big Bertha B21 driver adjustment chart

The Callaway Big Bertha drivers can be set for a total of four loft options. These drivers can also be set for two different lie angles.

The table given below shows the eight possible settings for each of the three drivers in the Big Bertha series. This will help you adjust your driver according to what helps you get the best out of your game with any of them.

*Driver Name*	*Stated Loft (S)*	Loft Increase (1°)	Loft Increase (2°)	*Lie Angle*	*Lie Angle Setting*
Big Bertha B21	9°	10°	11°	60°	N
					D
	10.5°	11.5°	12.5°		N
					D
	12.5°	13.5°	14.5°		N
					D
Big Bertha REVA	10.5°	11.5°	12.5°	60°	N
					D
	12.5°	13.5°	14.5°		N
					D
Big Bertha LD Spec	9°	10°	11°	60°	N
					D
	10.5°	11.5°	12.5°		N
					D
	12.5°	13.5°	14.5°		N
					D

*Driver Name*	*Stated Loft (S)*	Loft Decrease (-1°)	*Lie Angle*	*Lie Angle Setting*
Big Bertha B21	9°	8°	60°	N
				D
	10.5°	9.5°		N
				D
	12.5°	11.5°		N
				D
Big Bertha REVA	10.5°	9.5°	60°	N
				D
	12.5°	11.5°		N
				D
Big Bertha LD Spec	9°	8°	60°	N
				D
	10.5°	9.5°		N
				D
	12.5°	11.5°		N
				D

Callaway Big Bertha B21 driver OptiFit settings

The Callaway Big Bertha B21 OptiFit settings refer to the settings done on its hosel. This is why the hosel of the driver is referred to as an OptiFit hosel. The steps given below will help you make the different settings using the Callaway wrench.

Fit the Callaway wrench into the screw positioned behind the clubhead of the driver.
Turn the wrench in the anticlockwise direction until you find that the screw has become loose.
Take off the clubhead from its position over the club shaft.
Set the +1 marking on the lower cog in line with the white dash marked on the driver’s OptiFit hosel. The stated loft setting is on this cog. Alternatively, if you want to increase the loft further, you can opt for the +2 marking on the upper cog. You can also use the upper cog to lower the default loft.
Set the lie angle to N for a neutral setting or D for a draw setting using the other cog. You will have to use the upper cog for the lie angle setting if you are using the stated loft or increased it by 1°. On the other hand, if you have increased the loft by 2° or decreased it by 1°, use the lower cog for the lie angle setting.
Make sure that the lie angle setting is in line with the white dash on the hosel as well as the chosen loft setting.
Replace the clubhead such that the white dash marked here is aligned with all the above markings.
Turn the wrench in the clockwise direction to tighten the clubhead and seat it firmly in place.
Stop the turning process when you hear a double-click sound.

Callaway Big Bertha B21 driver draw settings

There are two ways you can set the Callaway Big Bertha B21 driver for a draw. One way to do this is to increase the stated loft. The other way is to opt for the D setting on the hosel. You can also do both settings to get the maximum draw from your driver. The following steps walk you through how to set the Callaway Big Bertha B21 driver for a draw.

Insert the Callaway wrench inside the screw located at the rear of the clubhead.
Rotate the wrench a few times to the right until the screw is loose and you can remove the clubhead.
Align the +1 or +2 marking on the lower cog or the upper cog with the white line on the hosel.
Align the D marking on the lower cog with the loft marking and the white line on the OptiFit hosel.
Put the clubhead back in place with the white line marked on it in line with the earlier markings.
Rotate the wrench the same number of times as you did earlier to the left till there is a double-click sound that signals you can stop the rotating process.

Players have observed that when the Callaway Big Bertha 21 driver is set for a draw by increasing the loft, the clubface gets closed marginally at the time of impact. The draw effect is also more with the +2 setting when compared to the +1 setting.

Callaway Big Bertha B21 driver fade settings

The Callaway Big Bertha B21 driver can be set for a fade by lowering the default or stated loft of the driver. The steps mentioned here guide you on how to set the driver for a fade.

Put the Callaway wrench into the screw that is present at the back of the clubhead.
Turn the wrench counterclockwise a few times until the screw is completely loose so that the clubhead can be slid off easily.
Align the -1 marking on the lower cog with the white dash on the hosel.
Align the N marking on the upper cog with the white dash on the club hosel and the -1 loft marking.
Reseat the clubhead over the shaft making sure that the white dash on it is aligned with the hosel, loft and lie angle markings.
Turn the wrench clockwise until there is a double-click sound that lets you know you can stop the turning action.

The other way to make the Big Bertha driver eligible for a fade is to swap its 7g and 1g screw weights. The 7g weight must be positioned in the toe and the 1g weight must be placed at the heel. Players who have set the Callaway Big Bertha 21 driver for a fade find that the clubface opens fractionally whenever there is an impact.

Callaway Big Bertha B21 driver loft settings

The Callaway Big Bertha driver can be set for an increased or decreased loft for a draw or a fade. The steps highlighted below guide you on how to go about this process.

Insert the Callaway wrench into the screw located on the rear of its clubhead.
Rotate the wrench to the right until you notice that the screw has loosened fully.
Do one of the following loft settings on the driver to increase or decrease the stated loft taking care to ensure that the loft marking and white dash on the hosel are aligned.

Set the +1 mark on the lower cog to increase the loft by 1°. This is the lowest loft possible for the driver.
Set the -1 mark on the upper cog to decrease the loft by 1°.
Set the +1 mark on the upper cog to increase the loft by 2°. This is the highest loft possible for the driver.

Set the driver for a draw with the D setting or for a neutral setting with the N setting.
Put the clubhead above the club shaft with the white dash on the head in alignment with all the above markings.
Rotate the wrench to the right and stop doing this when there is a double-click sound.