Callaway Big Bertha Driver compatible shafts

The Big Bertha Driver uses the Callaway OptiFit 2 adapter (Callaway connector system), OptiFit 2 (Rogue to Quantum, 2017 to present) (0.335" tip).

Check your shaft

Type the model your shaft is currently in (or was pulled from) to see whether it fits the Big Bertha Driver.

My shaft is in a

Sleeve interchange

Researched cases where a sleeve from another generation of this same brand does or does not fit this head.

Sleeve family	Verdict	Notes	Source
Callaway OptiFit 3	Does not fit	Driver-generation OptiFit 2 (or OptiFit 4) sleeve is not interchangeable with the fairway-generation OptiFit 3 sleeve (callaway-optifit-3-fairway): GolfWorks sells these as separate, distinctly-numbered parts (CA0020/CA0029 for drivers, CA0024 for the 2019-2025 fairway generation), and CA0024's own page describes itself as 'a Smaller and lighter version of the original... Opti-Fit driver/fairway adaptor,' i.e. physically distinct from the current driver part despite the shared mechanism family.	Inferred from aftermarket sleeve part coverage, cross-checked across suppliers.
Callaway OptiFit 4	Does not fit	Driver-generation OptiFit 2 sleeve (2 cogs, 8 positions) is not interchangeable with the fairway/hybrid/mini-generation OptiFit 4 sleeve (4 machined pieces, 7 positions).	Inferred from aftermarket sleeve part coverage, cross-checked across suppliers.

Shafts that drop in from another head

A shaft pulled from any of these heads carries a sleeve the Big Bertha Driver accepts, so it drops straight in, no reshaft.

Any 0.335 inch tip shaft can be built for this hosel by a club builder; the sleeve, not the shaft model, is what decides whether a used pull drops in.

Shafts from other brands

Sleeve adapters are brand specific. A shaft pulled from a different brand's head carries that brand's sleeve, not this one, so it needs the sleeve swapped by a club builder before it fits this head.