Equipment
Three Callaway GBB Epic drivers appear on USGA Conforming Club List
Three new Callaway drivers have appeared on the USGA’s Conforming Club List: the GBB Epic, the GBB Epic Star and the GBB Epic Sub Zero.
Callaway isn’t commenting on the new Great Big Bertha (GBB) drivers at this time, so we can’t officially confirm or deny any details about the new drivers. We do anticipate that one or more of the driver models could be in play this week at the Hero World Challenge in the Bahamas, however, where they will be permitted for us. We also can point out a few things based on the USGA’s black-and-white photos.
GBB Epic
GBB Epic Star
Based on the photos, it appears the GBB Epic and GBB Epic Star are virtually identical, with the exception being the lack of an adjustable hosel on the GBB Epic Star.
Both drivers appear to use a technology called “Jailbreak,” which is highlighted on the front of the driver’s sole. The technology is rumored to connect the sole and crown of the drivers, adding reinforcement that improves energy transfer.
On the other end of the sole is a sliding weight that enables golfers to select a draw, fade or neutral trajectory bias. There are also what seem to be carbon fiber inserts on the soles of all three driver models. Carbon fiber is lighter than titanium, and its use presumably enhanced the ability of Callaway engineers to optimize the weighting of the driver heads for improved performance.
GBB Epic Sub Zero
Instead of a sliding weight track, the GBB Epic Sub Zero has two adjustable weights — one on the front of the sole, and one on the back. That reminds us of Callaway’s XR ’16 Sub Zero driver, which is the company’s current ultra-low-spin driver. It design targets better golfers, and was used in 2016 by Phil Mickelson.
The Sub Zero got its name from its center of gravity position (CG), which Callaway says is below the neutral axis line, or “sub zero.” The XR ’16 Sub Zero uses a what Callaway called a Carbon Triax Crown, an extremely thin, lightweight composite material on the top of the driver that the company said enabled its sub zero CG location.
What are GolfWRX Members saying about the new drivers? Join the discussion in our forum.
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- Chris Kirk what’s in the bag accurate as of The Open Championship.
Driver: Callaway Paradym Ai-Smoke Triple Diamond (9 degrees)
Shaft: Fujikura Ventus Blue 6 TX
3-wood: Callaway Paradym Ai-Smoke Max (15 degrees)
Shaft: Fujikura Ventus Blue 8 TX
Irons: Callaway Apex Pro (3), Callaway Apex MB (5-9)
Shafts: Fujikura Ventus Blue (3), Project X LZ 125 6.5 (5-9)
Wedges: Callaway Opus (46-10S @47, 50-10S, 56-12S), Callaway Jaws Raw “S6” (58)
Shafts: True Temper Dynamic Gold S200
Putter: Odyssey Metal X Milled 9HT
Grips: Golf Pride Tour Velvet
Ball: Titleist Pro V1x
More photos of Chris Kirk’s WITB in the forums.
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- Keith Mitchell what’s in the bag accurate as of the 3M Open. Obviously, Mitchell is deciding between putters for the week. More photos from the event here.
Driver: Mizuno ST-Z 230 (9.5 degrees)
Shaft: Mitsubishi Diamana WB 73 TX
3-wood: TaylorMade Qi10 (16.5 degrees)
Shaft: Mitsubishi Tensei 1K Blue 90 TX
7-wood: Titleist TS2 (21 degrees, C1 SureFit setting)
Shaft: Mitsubishi Tensei CK Pro Blue 90 TX
Irons: Mizuno Pro 225 (2), Mizuno Pro 225 “KM-92” (4-9)
Shafts: True Temper Dynamic Gold Tour Issue X100
Wedges: Mizuno T24 (46-08S @47, 50-07S @51), Titleist Vokey Design WedgeWorks Proto (60-T)
Shafts: True Temper Dynamic Gold Tour Issue S400
Putter: TaylorMade Spider Tour
Grip: SuperStroke Zenergy Pistol GTR+
Putter: TaylorMade Spider Tour Z
Grip: SuperStroke Zenergy Pistol GTR+
Putter: TaylorMade Spider Tour
Grip: Golf Pride Pro Only
Grips: Golf Pride Victory Cord
Ball: Titleist Pro V1
See the rest of Keith Mitchell’s WITB in the forums.
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At the 2021 3M Open, Cameron Champ hoisted the third trophy of his PGA Tour career thanks to a final-round 5-under 66.
Enjoy the highlights below, and then check out the gear Cameron Champ had in play three years ago.
Driver: Ping G425 LST (10.5 degrees @9) (14g CG shifter in neutral) Buy here.
Shaft: Mitsubishi Tensei AV Raw White 75 TX (45.25 inches, tipped 1.5 inches, D6+)
Irons: Ping i500 (3, 4) Buy here, Ping iBlade (4-PW) Buy here.
Shafts: True Temper Dynamic Gold Tour Issue X7
Wedges: TaylorMade MG Hi-Toe Raw (52, 56, 60) Buy here.
Shafts: True Temper Dynamic Gold Tour Issue S400
Putter: Ping Prototype PLD Anser 4 Buy here.
Ball: Srixon Z-Star XV Buy here.
Grips: Golf Pride Tour Velvet Align 58 (+3 wraps)
WITB Time Machine is presented by 2nd Swing Golf. 2nd Swing has more than 100,000 new and pre-swung golf clubs available in six store locations and online. Check them out here.
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Chris Kirk WITB 2024 (July)
Chris Kirk what’s in the bag accurate as of The Open Championship. Driver: Callaway Paradym Ai-Smoke Triple Diamond (9 degrees)...
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Driver: Titleist GT2 (9 degrees) Shaft: Accra Tour Z5 65 M5 3-wood: Titleist GT2 (13.5 degrees) Shaft: Mitsubishi Tensei 1K...
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westphi
Dec 4, 2016 at 12:56 pm
When is this going to be released in stores?
Red Regal
Nov 29, 2016 at 6:42 am
Callaway the new Taylor Made with so many releases.
PapaBear
Nov 29, 2016 at 2:46 am
Haven’t been this excited since the Cobra 370U was released!
KJ
Nov 28, 2016 at 9:02 pm
A lot of the comments, so true. I buy a new driver amount every 3 years. I typically buy a model that’s one year old and half the price of the original in very good shape.
erlybrd
Nov 28, 2016 at 6:27 pm
What? Looks just like 915 D4 head!!
Blade Junkie
Nov 28, 2016 at 3:31 pm
Another bottle of Snake Oil please Bartender !
B. Parsons
Nov 28, 2016 at 1:16 pm
The Korean YouTube video showed these in detail. I’m sure cally will try their best to have it pulled, but it’s still out there. Search for it on naver or another Korean search engine.
Dave R
Nov 28, 2016 at 12:21 pm
What I can’t believe it more new drivers, what will they think of next
Jordan
Nov 28, 2016 at 11:14 am
Wait, they’re coming out with an adjustable 915 driver? Color me intrigued…
Guy
Nov 28, 2016 at 11:49 am
Thats what I was thinking when I saw it.
Clay
Nov 28, 2016 at 10:30 am
I can’t believe no one has speculated that the bonded hosel design was made for Tiger. Are the “Tiger is buying TM” rumors so strong that no one wants to start a new rumor about Tiger signing with Callaway? Fine, I will start the rumor. The GBB Star is made specifically for Tiger and will not go to market. I have zero evidence but I know some people that know some people that robbed some people and they said it is true.
Michael
Nov 28, 2016 at 9:33 am
The Epic Star has my attention. Will this be a non-adjustable model that is in the $399 range? Would they want to compete with possible Fusion sales?
cgasucks
Nov 28, 2016 at 9:04 am
Jailbreak technology!??! What is that?? Does it mean if you pay someone to “unlock” it you remove the USGA COR restriction!??!
Desmond
Nov 28, 2016 at 9:23 am
You need to read the EPIC thread
Desmond
Nov 28, 2016 at 9:24 am
… or just the descriptions above. Works wonders.
Fozzie Bear
Nov 28, 2016 at 8:50 am
Oh, Mizuno Fast Track is back. 🙂
DB
Dec 2, 2016 at 12:49 am
Man, I just saw a Mizzy Fast Track at GolfMart for like $30.
If Callaway says this technology is a game changer then I’m going back to get that Mizuno tonight!