“A 235cc adjustable mini driver -- a tee-shot alternative for players who fight the big head or want a control club off the deck. Niche but genuinely useful; the modern mini-driver revival is more refined.”
Released in 2015 as Callaway's answer to golfers who wanted more forgiveness and control than a full driver but more distance than a 3-wood, the Big Bertha Mini 1.5 packed a 235cc head -- 35% larger than the XR fairway wood shape it borrowed from -- into an OptiFit-adjustable body. A Forged Hyper Speed Face Cup and Forged Composite crown kept it light enough to swing fast, while a cambered Warbird sole helped it play well off both tee and turf. It arrived years before mini-drivers (Cobra Aerojet, Titleist GT2) became a recognized category, and quietly disappeared without a direct Big Bertha successor.
No forum cult and no scarcity story, but reviewers (Plugged In Golf, Golf Monthly, National Club Golfer) were consistently positive about its versatility off the tee and from the fairway -- praise usually reserved for cult clubs. It predates the 2020s mini-driver boom by roughly half a decade and never got credit for it; Callaway didn't keep a mini-driver in the Big Bertha lineup afterward.
Golfers who struggle with a full-size driver's swing weight or dispersion, better players wanting a control tee shot into tight par-4s, or anyone wanting a versatile tee-and-fairway hybrid-driver. Not for someone chasing maximum carry distance off the tee -- a modern 460cc GI driver will out-drive it.
Launched alongside Callaway's full-size Big Bertha driver reboot of 2014-15, part of the same 'more forgiveness, less penalty' pitch across the whole line that year. Sources differ on the stock shaft: Callaway's own launch materials and most contemporary reviews (Plugged In Golf, GolfWRX) list the 65g Mitsubishi Kuro Kage Silver TiNi at 44 inches as stock, while some catalogs list a Fujikura Speeder graphite -- likely a documented aftermarket/upsell option rather than the true base spec. Its spiritual successors are the Cobra Aerojet and Titleist GT2 mini-drivers of the 2020s.
The 235cc head is roomy for a 'mini' but still notably smaller than a 460cc full driver, so MOI and off-center forgiveness trail true game-improvement drivers. The Forged Hyper Speed Face Cup and cambered Warbird sole (borrowed from Callaway's fairway wood playbook) resist digging and keep ball speed up on mis-hits better than a typical fairway wood of the era, landing it between a forgiving 3-wood and a max-forgiveness driver.
Calibrated across the whole catalog — a tour blade scores low here on purpose; it means control, not ease.
Complete used examples typically sell for roughly $60-$130 in 2026 depending on shaft and condition -- it never became collectible, and steady but modest demand comes from players specifically hunting the mini-driver format rather than Callaway/Big Bertha collectors.
Reading is one thing — hitting is another. Book a bay and see the numbers for yourself before you buy anywhere.
