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2021 Titleist TSi2 and TSi3 drivers continue the Titleist Speed Project



The new 2021 Titleist TSi2 and TSi3 drivers are all about getting more distance more oftenand the engineering team behind the TSi Series have exhausted every possible avenue to build the fastest, longest, and most consistent drivers they have ever put into the hands of golfers.

But, before we get to what’s new, we have to take a look back. The Titleist TSi Series drivers build on the unprecedented success of the original TS Series, which were kicked off with the introduction of the TS2 and TS3—the first drivers to come from what Titleist calls its “Titleist Speed” Project (in case you were curious what TS stands for). This resulted in Titleist forever changing the way they design and build their drivers, with the TS Series having 20-percent thinner crowns and faces six grams lighter than the previous models.

These changes and engineering breakthroughs immediately thrust Titleist into the conversation around the fastest drivers on the market, and forever did away with the old “they’re really good but not the longest” stereotype.

This “new boundary-pushing Titleist” is no accident either. Since 2008, the golf club R&D department has gone from 13 engineers and designers to over 70—that means more brainpower focused on each individual project, which in turn results in more people time per product category and better golf clubs.  

Titleist’s driver evolution – From “concept” to reality

As much as the conversation around the new TSi2 and TSi3 drivers is about the evolution from the original TS Series, the truth is it really started years before that with the C16 (“C” standing for Concept and 16, its year of release, 2016 ). It was the first time Titleist introduced to consumers what it called a “no holds barred approach to design and materials”—a true “if we build it, they will come” line of clubs. The C16 driver alone debuted with a $1,000 price tag…and quickly sold out.

For Titleist and its team of engineers, it allowed them to remove the reigns of cost and do whatever it takes to push manufacturing and material technologies in search of ultimate performance. Looking back on the C16 driver now, even then they were dropping hints about future designs.

“These clubs are previews of what’s to come. Maybe not in the next generation. Maybe in two generations.” – Titleist on the C16 series.

The C16 driver gave us SureFit adjustable CG (center of gravity) weighting, which became part of the full retail line in within a year with the launch of the 917D3—and here’s the big one: an ultra-thin, ATI-425 Titanium Crown, the first driver to use this super-strong patented material in the golf club space.

Titleist TSi2 and TSi3 drivers

The “i” is for “innovation”

Titleist’s ATI-425 Titanium face

Titleist has enjoyed using extra letters to denote key features of some of its newest models—the most recent is the T100s with the “S” standing for both “strong” and “speed.” The “i” in TSi is no different but it has a few more meanings attached beyond the obvious “innovation.”


Both of the new TSi Series drivers have boosted MOI over the previous generation beyond the traditional heel and toe forgiveness.

Engineers spent a huge amount of time figuring out a way to make the drivers more stable higher and lower on the face to help boost “high-low” MOI to create smaller launch windows and greater spin robustness. Spin robustness is a term we will continue to hear more about since driver faces can’t get any faster (off the middle), per the rules of golf, but enhancing a club’s ability to generate tighter spin robustness creates more consistent numbers and smaller standard deviation from optimal conditions.

The now 2 generations old 917 Series with ARC on sole

This was achieved in previous generations of Titleist drivers with ARC (Active Recoil Channel), to aid shots hit lower on the face, but it required the use of extra material which was able to be eliminated with the launch of the TS. In essence, Titleist engineered it obsolete for use in their drivers.

According to Titleist, the TSi2 has an improved high/low inertia of 13 percent, while the TSi3 comes in at 10 percent. In the world of engineering, single percent advancements are considered a big step so for Titleist to hit double digits on both products should be considered a big leap.

The final part of the inertial story is about shaping—for both speed and altering the internal weight properties of both drivers to make them more forgiving. Shaping is less a technology component and more about the overall design because when it comes to manufacturing a driver head, adjusting the shape doesn’t add cost—engineers call this “free technology.”

The weight saving and reshaping resulted in lower, deeper centers of gravity for both heads, which when taken out into the real world for testing creates more dynamic loft—this is why for the TSi Series drivers the lofts have all been strengthened by 1/2 degree to help maintain proper launch windows.

The reshaping also created a 15-percent reduction in total drag around the head thanks to improved aerodynamics. Truly no detail has been overlooked.


The Tsi2 and TSi3 drivers utilize ATI-425 titanium for the face insert, allowing engineers to once again make the faces thinner to reduce weight while also increasing the overall elasticity for better ball speed retainment. ATI is also known as Allegheny Technologies Incorporated, and you will find their logo has a nice little place on the face of the new drivers.

To add some additional background, ATI is a massive specialty materials company headquartered in Pittsburgh, PA, with sales that surpassed $4 billion dollars in 2019. Materials they have designed are used in medical devices, jet engines, nuclear submarines, wind turbines, deepsea mining, military aircraft bodies, and other defense applications.

The ATI-425 titanium is manufactured in their state of the art factory in Pittsburgh, and compared to the conventional titanium alloys used in golf, offers a six-percent higher yield strength, four-percent higher tensile strength, and most importantly a 30-percent higher ductility. Titleist is currently the only company using ATI-425.

This titanium material allows Titleist engineers to design thinner, faster faces since it can handle higher stress while remaining extremely durable. This leads to higher COR/CT around the entire face while still keeping within compliance of the rules. It’s a fine line to walk, but when you’re pushing limits of performance, you need to look for every advantage.

The other advantage Titleist has on the manufacturing side is engineers don’t cut corners. Every head is tested for CT multiple times in multiple locations through the process—this leads to some of the tightest tolerances in the industry and ensures that the driver in your hands is at the limit. It’s no different than how Titleist treats clubs on the other end of the spectrum by measuring the grooves of every single Vokey wedge that comes out of production.

The final part of “impact” is of course the moment of impact and acoustics. The new Titleist TSi drivers have already been described as being “solid soft” (which I realize is an oxymoron). They have a nice pitch that lets you know you hit it well, but the overall tone is softer and more elongated rather than sharp. It’s not an easy thing to achieve when you have a thin-wall constructed object hitting another solid object traveling over 100 mph, but to get a good idea, here is our own Johnny Wunder hitting a TSi3.

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@titleist TSi3 Sounds

A post shared by Johnny Wunder (@johnny_wunder) on


This is where we bring together the new materials and the redesigned aerodynamic shape and add in a few more pieces of new and improved technology.

SureFit weighting goes all the way back to the C16, which was the first Titleist driver to offer an adjustable center of gravity. Since then, Titleist has continued to refine the technology, and the TSi3 represents by far the best system to date for both golfers and fitters alike for a number of reasons.

First, let’s talk about fitters. The original SureFit was the perfect “set it and forget it” system, but it also meant that if you had to check how the driver was set up, you had to look very closely at the small port. Then you had to pull the cap off, get out your weight kit, adjust, and then finally reinstall the cap. I’m willing to bet Titleist had to ship out a few replacement caps to golfers that lost them during the adjusting process.

The new system eliminates the need to remove any cap and instead replaces the old port with a new set five-position track. The driver comes stock with an eight-gram weight with additional weights available in two-gram increments up to 12 grams and down to four. This makes dialing in head weight and ball flight tendencies much easier than before and improves the overall fitting process.

Now for golfers. Beyond the much great ease of adjustability, the biggest issue some found with the configuration of the TS3’s sole was the way the SureFit port stuck out from the sole and created some resistance in the backswing—it was a comment both from regular golfers and some of Titleist’s tour staff. It seems like a minor issue, but when you’re about to launch a golf ball 300 yards down a fairway, it’s pretty important to feel comfortable making a backswing.

And there we have it, new face, new sound, new shape, and new weighting system to make the TSi Series drivers the best Titleist drivers to date—but wait there’s more! 

New featured & premium featured shafts

With Titleist’s position as a premium golf brand, it is officially eliminating the word “stock” from its vocabulary and replacing it with “featured.”

At Titleist, we are a premium brand and the TSi series woods are a premium performance product. For that reason, we only use real deal aftermarket shafts – not make for “stock shafts.”

Yes, it’s just a name change, but it demonstrates just how far Titleist is willing to go to differentiate itself from its competition—even when it comes to its off the rack featured shaft offerings which include

Beyond the featured shafts, Titleist is also offering what it is calling premium featured shafts in partnership with Graphite Design. This allows golfer access to Graphite Design’s top-three shaft brands for a reduced price compared to previous generation drivers.

  • TOUR AD – DI: Weight- DI 5,6,7,8. Launch- Mid/High. Spin: Low | Flex: X, S
  • TOUR AD – XC: Weight- XC 5,6,7,8. Launch- Low/Mid. Spin: Low | Flex: X, S
  • TOUR AD – IZ: Weight- IZ 5,6,7,8. Launch- Low/Mid. Spin: Low | Flex: X, S

All Graphite Design shafts are manufactured in Japan to the highest quality standards, and offer unmatched stability and feel by using aerospace quality carbon fibers and cutting edge technology.

But what about a TSi4…and a TSi1?

This is the million-dollar question, and unlike with the previous generation, Titleist has been a little more open about discussing future line add-ons.

The TSi4 has already been spotted on the USGA conforming list, and in the bag of at least one PGA Tour player, while the TSi1 has not yet been spotted. The likely reason is the TSi1 will be a club designed to cater to golfers at the lower end of the speed spectrum much like the TS1, and since there aren’t any tour players swinging under 90 mph with their driver, there isn’t any rush to get it on the USGA conforming list until closer to its official release date—rumor has sometime in the spring of 2021.

But since both of these clubs are designed for the smallest portion of the fitting bell curve, the chance is if you are in the vast majority of golfers looking to get fit into a new TSi series driver, the TSi2 and the TSi3 is going to offer you an ideal platform to optimize performance and consistency.

TSi driver specs, price, and availability

Titleist TSi2 driver

The TSi2 driver will be available in 9, 10, and 11-degree lofts in both right and left-handed with an 8-degree head available through custom order in right-hand only.

Titleist TSi3 driver

The TSi3 driver will be available in 8, 9, and 10-degree lofts in both right and left-handed with an 11-degree head available through custom order in right hand only. 

The stock lengths for both drivers is 45.5″, and the grip is the Golf Pride Tour Velvet 360 grey flat cap.

Both drivers are priced at $550 with featured shafts (see above options); the premium featured shafts are an additional $200, totaling $750.

The new 2021 Titleist TSi2 and TSi3 drivers will be available for custom fitting beginning today, October 15th, 2020 through Titleist authorized dealers, fitting centers, and at Titleist Thursday events being held nationwide. They will be at retail on shelves starting November 12th.

To find an event, or book a TSi driver fitting with a Titleist Product Specialist visit the website here.


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Ryan Barath is a club-fitter & master club builder with more than 17 years of experience working with golfers of all skill levels, including PGA Tour players. He is the former Build Shop Manager & Social Media Coordinator for Modern Golf. He now works independently from his home shop and is a member of advisory panels to a select number of golf equipment manufacturers. You can find Ryan on Twitter and Instagram where he's always willing to chat golf, and share his passion for club building, course architecture and wedge grinding.



  1. Pingback: GolfWRX Members Choice: Best driver of 2021 – GolfWRX

  2. Rich

    Oct 18, 2020 at 3:52 pm

    I don’t chase new clubs anymore, but I might have to take the TSi3 as a replacement for my 917D3.

    Because of the USGA’s limit on COR, there really isn’t a lot more distance available through innovation. But there is still an opportunity to boost distance on mis-hits, and this line seems to want to do that by using a different material on the face that allows them to increase the COR near the perimeter of the clubface by making it thinner–yet retaining durability.

    Most of your improvements these days have to do with fitting. I don’t know whether this club’s variability will be right for any particular golfer. For example, you can move the CG left and right to affect ball flight left and right, but you can’t move the CG up and back. You can also affect swing weight by swapping out 4g of weight (or adding 4g). Finally, you can do some loft and lie adjustments. Are these the variables YOU need to adjust? If not, keep shopping.

  3. Wag

    Oct 16, 2020 at 12:26 pm

    Not a single precedent of successful driver launches before this one! Unprecedented success!!!!

    Throwing that term without an abundance of caution these days, are we?

  4. Jbone

    Oct 15, 2020 at 10:36 pm

    Still can’t match my 905S

  5. dat

    Oct 15, 2020 at 4:02 pm

    Pricing is out of line for performance.

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2021 GolfWRX Holiday Gift Guide: Golf gifts for the Clothes Horse



It’s that time of year again, GolfWRX members, the moment we start filling our wish lists with the golf gear we want this holiday season.

The GolfWRX Holiday Gift Guide was created to ensure that our readers give (and hopefully receive) the very best golf gifts on the planet. These gift ideas will suit any budget, and each item was hand-picked by our staff.

In an effort to provide more value and tailored recommendations, we’re presenting our guide as a series this year, targeting “the purist,” “the gearhead,” “the value seeker,” “the golfer looking to improve,” “the clothes horse,” and “the big spender.”

You know the golfer looking to get better by his/her closet full of every infomercial training aid and a pursuit of forgiveness that would put the most penitent sinner to shame.

Here are our best recommendations for “the clothes horse” in your life.

Jordan ADG 3 – $140

Taking the iconic style of the Jordan 4 and incorporating that with the performance levels of a golf shoe, Nike has created the Jordan ADG 3. A sneakerhead’s dream for golfers, the shoe comes in three different color schemes and features Zoom Air as well as the classic Jordan wing-shaped upper eyelets that are designed to cushion and support your feet on and off the course.

Buy here.

G-T PrimeGreen Cold.Rdy Hoodie – $90

Hoodies are the in-thing at the moment on the golf course, and considering Spring/Summer isn’t exactly just around the corner, now is the time to join the movement! The Cold.Rdy hoodie from Adidas features a built-in stretch for a full range of motion on the course, as well as ribbed details to give an extra-comfortable feel. Keep warm in cool conditions with Cold.Rdy by utilizing the drawcord on the hood for total protection on the course.

Buy here.

FootJoy Premiere Series Tarlow – $190

No golf collection is truly complete without a set of FootJoy’s, and the company’s Premiere Series Tarlow provide a premium, hand-selected, soft full-grain leather with luxurious calfskin details. The shoes also feature soft, supple sheepskin linings and lightweight performance materials, and with the brand’s new VersaTrax+ technology, aim to deliver unparalleled traction and stability in every playing condition and surface.

Buy here.

G/Fore Back 9 Bully Trucker Hat – $45

Show off your back 9 credentials with this ‘Back 9 Bully’ trucker hat from G/Fore that features a breathable mesh and tech interlock, as well as an athletic sweatband and an adjustable snapback closure.

Buy here.

Muni-Kids’ I’m Under Part T-Shirt – $30

Show off the ultimate golf flex in this comfortable t-shirt from Muni-Kids, a Portland-based streetwear label inspired by municipal golf culture. The shirt comes in a white color scheme and features a comfortable dual blend of 60% combed and ring-spun cotton and 40% polyester.

Buy here.

LinkSoul Anza Flora Print Polo – $89

LinkSoul’s Anza Flora print polo is available in two color schemes – ink heather and chai heather – and features a blend of cotton, poly and lycra in design to provide golfers with the perfect amount of comfort and fit.

Buy here.


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2021 GolfWRX Holiday Gift Guide: Golf gifts for the Value Seeker



It’s that time of year again, GolfWRX members, the moment we start filling our wish lists with the golf gear we want this holiday season.

The GolfWRX Holiday Gift Guide was created to ensure that our readers give (and hopefully receive) the very best golf gifts on the planet. These gift ideas will suit any budget, and each item was hand-picked by our staff.

In an effort to provide more value and tailored recommendations, we’re presenting our guide as a series this year, targeting “the purist,” “the gearhead,” “the value seeker,” “the golfer looking to improve,” “the clothes horse,” and “the big spender.”

You know the value seeker by his/her eschewing of anything that will put a significant dent into the wallet while still getting the most from their game, this includes equipment, practice tools, or anything else you might find filling out a golf bag – maybe even the golf bag itself.

Here are our best recommendations for “the value seeker” in your life.

Tour Edge Hot Launch C522, E522 drivers – $249.99

You can read all the tech details of the C522 (competition spec) and E522 (extreme spec) Hot Launch metal woods in our launch piece. But the most important point here for the Value Seeker is Tour Edge continues to deliver the best bang for your buck in the business.

Buy here.

Haywood Golf Signature Irons – $675

“Carefully crafted, consciously priced” – Haywood Golf’s signature irons are a two-piece hollow body design that incorporates a soft 431 stainless steel body welded to a hardened heat-treated 17-4 stainless steel face. The irons feature high launch characteristics and have proved a big hit with golfers, with progressively reduced offset designed to provide added forgiveness (more about the company here).

Buy here.

GoGoGoSport GS24 rangefinder – $70

70 bucks with a Black Friday discount? The Value Seeker loves that. Measuring range from 5 to 650 yards, with +/- 1m high accuracy and 6x magnification. The flagpole locking function supports a distance up to 150 yards (flagpole only) and 250 yards (aim the flag when it’s unfolded)

Buy here.

Kirkland Signature 3-piece wedge set – $169.99

The Kirkland Signature 3-piece golf wedge set dropped last year (read our launch piece here) and has provided players with a quality wedge set at a super affordable price. At just $169.99, golfers can have a 52 degree GW, 56 degree SW and 60 degree lob wedge, all with milled face technology without having to break the bank.

Buy here.

Whoop 4.0 – $30/month (+$30 to join)

How about having a personalized digital fitness and health cost all for an annual price of $360? Used by many Tour pros, including Justin Thomas and Nelly Korda, the Whoop 4.0 comes free with your membership and provides real-time feedback on your sleep, training, recovery, and health, plus in-app coaching features golfers and athletes optimize performance.

Through the Whoop app, you’ll be able to receive personalized insights and actionable feedback based on your unique data, behaviors, and goals — with a strain ‘coach’, sleep ‘coach’ as well as a behavioral journal to make sure you are at your optimal condition to start shooting low rounds.

Buy here.

Stitch SL1 Golf Bag – $208.80

With a current reduction of $140, value seekers won’t want to miss their chance of owning the Stitch SL1 golf bag. Weighing in at just 57 oz, the bag is designed using Stitch touring fabric in design for durability, lightweight as well as water resistance. 

Perfect for those that travel or players that walk the course, the SL1 bag is a minimalist’s dream with limited storage and a single strap for a vintage feel.

Buy here.


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2021 GolfWRX Holiday Gift Guide: Gifts for the Gearhead



It’s that time of year again, GolfWRX members, the moment we start filling our wish lists with the golf gear we want this holiday season.

The GolfWRX Holiday Gift Guide was created to ensure that our readers give (and hopefully receive) the very best golf gifts on the planet. These gift ideas will suit any budget, and each item was hand-picked by our staff.

In an effort to provide more value and tailored recommendations, we’re presenting our guide as a series this year, targeting “the purist,” “the gearhead,” “the value seeker,” “the golfer looking to get better,” and “the big spender.”

You know the gearhead by his/her tired eyes from scouring the GolfWRX forums late into the night and his penchant for bringing two bags to the course—the gamer set and a bag full of demo clubs and shafts.

Here are our best recommendations for “the gearhead” in your life.

TaylorMade MySIM2 – $629.99

What’s better than a TaylorMade SIM2 (top 5 in GolfWRX’s Members Choice)? How about one in custom colors? Five different options for personalization including the aluminum ring, topline paint, and more.

Buy here

1withGolf bag – Varies

What gearhead wouldn’t want — nay, need — a custom golf bag? And when it comes to the combination of customization and quality, we can’t recommend 1withGolf enough.

A personalized and customized golf bag makes for a super cool, special, and memorable holiday gift. 1withGolf has over 135 color combinations for you to choose from and has the fastest turnaround in the industry.

Besides custom bags, their Xpress 3.5, Xpress 4.0, Xpress 14-way stand bags, and Z-100 15-way cart bags are all lightweight and of great quality with sleek design. They are full of consumer-friendly features to provide extra comfort on the course.

Buy here

Cobra King GrandSport-35 – $349.99

What screams gearhead in 2021 more than “3D printed putter?” Cobra’s King GrandSport-35 is 3D printed and folds in Sik’s DLT face to complete this ingredient-intensive gearhead stew. Yum!

Buy here

Rapsodo MLM – $499.99

Rapsodo’s MLM is the only launch monitor that uses the power of your iPhone or iPad to provide immediate feedback on launch data, instant video replay and active shot trace. Recognized by industry leaders for its pro-level accuracy for shot distance, ball speed, club speed, shot shape, smash factor, launch angle, and launch direction, the MLM is uniquely positioned and priced and merits a long look as you weigh your launch monitor options.

Buy here 

Fujikura Ventus – $350

Winner of GolfWRX’s Member Choice for best shaft and one of the most-played wood shafts on the PGA Tour, the Fujikura Ventus hype train rolled on in 2021 — and for good reason: Velocore is no joke in terms of dispersion control, particularly on off-center hits. Black, Blue, and Red target three distinct ball flights and deliver on all three fronts.

Buy here

Vokey WedgeWorks T Grind – $199

The T Grind is a Voke original, inspired by work with a former Titleist Brand Ambassador, fine-tuned by the master craftsman and Aaron Dill. The characteristics reflect the great hands of the inspiration; this is a low-bounce wedge with a narrow crescent surface. Unique from the L Grind, this wedge has a wider back flange, which creates unique playing characteristics and allows for a lower measured bounce, in addition to the narrow bounce surface.

Buy here


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