THE (mysterious) AUTOFLEX SHAFT // 370+ YARD DRIVES

[@mattcoulson1560]

Across the world as we watch this video there are R&D guys from various shaft manufacturers ordering this shaft with the intention of cutting it up and finding it's "secrets"!! Brilliant video TXG - very entertaining!

[@allthatgolfkorea]

🤣🤣🤣

[@TheRealWarez]

I enjoy watching Matt swing, but with that little extra shaft flex and the pink on black background... it was as mesmerizing as a Fred Couples swing comp video... that's an accomplishment.

[@allthatgolfkorea]

Love Boom Boom 💥 👌

[@billhenwood4253]

I don’t know a thing about the construction of the AUTOFLEX shaft but I do know that lightweight and very flexible shafts do improve clubhead speed and accuracy. Back in the early 80”s at the original PINSEEKER golf company, we were approached by and inventor that had the same concept. He was a pole-vaulting manufacture that asked us to evaluate his shafts. Everyone thought the guy was nuts but agreed to test both woods and irons. We did extensive on-course testing at Mesa Verde C.C.and collected enough data (this was long before launch monitors) to conclude that the concept worked, especially on irons! As I recall, the distance gain was about 8 yards, tighter dispersion, higher launch and more spin on irons and drivers. We used scratch, mid and high handicappers that ALL saw benefits. We knew they were on to something but we passed. Being a hi-tech niche manufacturer we knew we didn’t have the marketing power to change conventional thoughts on speed vs. flex accepted at the time. I believe that several larger companies tested them but the inventor couldn’t get the funding to go into large scale production. Too bad, it did work. I hope the Korean company can pull it off!

[@terrancefonseca2129]

This has taught me 1 thing. You cannot just go buy a driver with whatever shaft it comes with and get your best out of it. You need to be fitted for what is best for you to perform at your best. You guys look like you are the best at this.

[@InsuranceSpecialist]

This is why you guys are the best, super interesting content, entertaining professional analysis without forcing know it all positions. Great how you are so open with results and analytics

[@IamDaGrouch]

I hear that Korea has very advanced fishing rod technology, which leads me to believe that Autoflex's secret sauce may be based on that. One of the most interesting videos created by this channel!

[@AD-vj3kj]

They do but alot is copied of very high end Japanese rod designs and materials. This has something else.

[@kingjoon]

Most fishing rod tech is put in with bunch of OEM & ODM by Korean companies to high end Japanese fishing rods brands. If anyone interested to purchase contact [e-mail]

[@kingjoon]

According to a person who is in charge of engineering development at Dumina who is also one of founder of the company, claiming that they have jointly developed a new material with KICET (Korean Institute of Ceramic & Engineering Technology) to be exclusively used only for Dumina. A new material used in making shaft that includes mixed materials of titanium, boron and something else which is hidden behind the Korean technology.

[@allthatgolfkorea]

Don't giveaway too much now~ 😄😄👍

[@thefreeagentbowler4383]

I would LOVE to see this testing for a lower swing speed to see the adverse or positive effects it may have on that players swing. Say, a regular dude like me, you know, if you want to shoot a shaft my way....

[@cthompson8405]

Before the Autoflex there was the Autopower shaft. Made by the same company in korea. I own one the black 7x. Has multiple wins on the Asian tours. It would be cool if you guys did an Autopower vs Autoflex.

[@paulkielwasser481]

Love it! Two years ago I was supposed to meet the rep in Florida and do a fitting. My schedule got crazy while I was down there so I never got to try it. So cool to see what it can do! Wow!

[@sterlingjuarez]

I definitely love it when Matty’s over 180!

[@docomo661]

Awesome! You weren't kidding Matt when you said the video was filmed and will be uploaded soon! Great to see this review. Enjoying my SF505 so far =)

[@allthatgolfkorea]

Wow. How did you get one so soon? 😮👍

[@austinling7318]

GENIUS. THEY HAVE APPLIED NON NEWTONIAN FLUID LIKE FIBERS TO THE SHAFT. There is a type of polymer that does it, I just cant remember the name. Essentially the shaft stiffens proportional to how hard you swing it until you overwhelm it. I think the real benefit is they can make the shaft really light but can normalize any force applied within a certain range to maintain the same resulting shaft flex. The mass of the head is overwhelming what the shaft can account for when you accelerate in transition. Freaking genius (if that's what they did). If not then I just had a multimillion dollar idea. I wonder if whatever material they use has some degree of recoil and is adding the clubhead speed when head is light enough.

[@muddyhumber]

This is my thought as well. Check out renoun.com for non-Newtonian polymer in skis. They call it HDT = Hyper Dampening Technology, renoun.com/pages/technology

[@chrismcmillon3873]

Interesting stuff here. I was a playing golf professional turned plastics (polymer) engineer and back to the golf business, because I’m not a fan of money I suppose. Anyways, almost all polymers are non-newtonian. The acting principle in this theory revolves around polymer orientation. The physics behind this is that the more force applied to polymers the more susceptible the polymer is to orient or “get in line”. Another comment her referenced “ketchup” and this is a good visual. Imagine how we have to get ketchup out of a glass bottle. When we hit the bottle we aren’t pushing the ketchup out we are causing the chains to untangle. This is why the last hit, almost all of the ketchup comes out of the bottle. So, using this principle, the harder someone swings the more the polymer chains orient in a way that increases flex. Well, that is the theory postulated here. With that said, polymer orientation is usually reserved for a liquid state. Once, solidified, the orientation is “locked” in a way. Still, heat or other outside agency can influence the polymers to revert back to its natural tangled state. So, I am not sure how this applies to this concept, but I would say that this theory is directional accurate and at the very least the premise behind the technology. Finally, my failed attempt to be a playing professional leading to having to take a job and learning too much about plastics has paid off in a a very “who cares” long comment on KZbin. I had dreams at one point in my life.

[@johnvincent2371]

Random speculation on the "Korean Hidden Technology". I wonder if it's some kind of visco-elastic material like Silly Putty. Under low force it's flexible but under high force it become more rigid. That's why SP stretches when you pull slowly but breaks when you pull fast.

[@gimbalair]

Defo

[@hudsonmackay4206]

Yeah I was thinking some kind of non newtonian material

[@mattyice1665]

@@hudsonmackay4206 "Autoflex. Made with Cornstarch!"

[@goodlife1581]

You’re telling me this shaft is made out of silly putty?

[@ericfrisvold6487]

first that was something similar to what you get in the new Bridgestone balls (higher swing speed produces less spin, lower swing more spin). My mind cant handle the idea of golf shaft marketing including "non-Newtonian" in the description and not being some made up BS.

[@IAM_Reedy]

Interesting. My guess is in the carbon fiber weave. I have seen applications of antheraea pernyi silk fiber and carbon fiber combined into a composite to increase stiffness under a torque load. The thought behind that technology is that the silk will react to the amount of torque applied. Couple that with an epoxy core and you might be onto something. Hard to say if this is what they have done without cutting the shaft and examining it. If they are not using silk they they have applied another similar material to accomplish the similar properties. Definitely cool. Edited for typos. 😊

[@blakebarone1809]

Matt: Hits it 369 yrds Ian: “your efficiency has plummeted” Matt: “ahh, that’s what it is”

[@paulkoppenheffer5323]

Well said. Always cracks me up when Matt smashes it 300 plus and is disappointed. My only chance of hitting it 300 is if the hole is downhill, downwind and I get a great kick off the cart path, or if I hit it twice..

[@M_Oz_]

@@paulkoppenheffer5323 I only seem to hit it 300 when I have a 1 metre put

[@paulkoppenheffer5323]

@@M_Oz_ must be a high MOI putter with a heck of a shaft. Have a great weekend.

[@sterlingjuarez]

The strike pattern during the run of shots with the Autoflex went from low heel to high toe, almost exactly what TM says their TwistFace©️®️™️ is for. It’s a medium weight head, too, maybe follow up with that combo to see what sort of performance you can extract? SIM or SIM MAX, either one, but I imagine you’d be able to tune SIM better.

[@danielcohen3159]

Definitely would love to to see a course video with Matt with that shaft. I wonder if you would see benefits for a 93.6 mph swinger (asking for a friend).

[@zachinutah447]

Best intro music in the business!

[@fholojr]

Like... wow though. Sign me up to try it haha I'd love to see Matt use it during a round and see if he struggles with dispersion out there.

[@Sk82478]

Wow just 😯! This is super cool! I’m totally geeking on this shaft and what it can mean for us going forward in golf! Secret materials!??!

[@lawrencehahn]

Was really hoping you guys would eventually test this shaft! Excited to watch

[@SquirrellyB]

I bought one and can attest to a 10-15 yard pick up. Swing speed prior to Autoflex: 96MPH. After 101 MPH. Huge huge fan.

[@Kylez1212]

I know this is old... but what driver head are you using? And do you know what swing weight you are at? 😊

[@ndmagic99]

Great vid. It’s like the Killer Bee driver from the 90’s which also alleged it had an autoflex shaft

[@hoganfan924]

That was nuts! 130mph CH speed. Wow! Let’s see Ian and some of your slower swingers hit it!

[@dabaumga]

Fascinating stuff! 130 club 180 ball. Bonkers, Matty!

[@ttv_EliteBlazeFN]

This is craziest test think ive ever seen on here how is this shaft even performin at all for matt i mean id def be intrested to see if got someone with slower swing speed to try it what kinda numbers would they get

[@Golfzilla70]

totally agree --- Matty just delivers the club almost perfectly at high speed. Maybe get a single-digit handicapper in there w/ about 100 mph speed, and maybe another one at about a 15-handicap and see before and after results. It would be a lot more telling if there's a big difference or not. For me, going from a 240-250 yard carry to about 260-270 would be HUGE. And i wouldn't hit it far enough to reach trouble anyway :)

[@olekrarup4849]

Agree 👍🏼👍🏼👍🏼

[@ttv_EliteBlazeFN]

Yea i swing comfortably 95mph could push it to 100 but not near as controlled. This is mitch not tiffany lol can't get wifes name off chat. But i love this channel its like watchin a human robot. Bet matt could hit an origanl big bertha from 90s 300 yards

[@user-ee8mm5kp5c]

They have lighter shafts SF405 for slower swing speed. They also have SF405X for those that need extra boost at the same weight. I think they weight like 41g

[@ttv_EliteBlazeFN]

I usually play a 55 to 60 gram stiff flex id prob use th 50 gram one

[@keithtuttle9154]

This reminded me of the Cobra Long Tom that I briefly played, especially the “training aide” thought. After swinging the (48”) Long Tom my regular driver felt more like a fairway wood or even hybrid. The Long Tom was surprisingly good it just isn’t as well rounded a driver these days. I could see myself using it on occasion just to reset things.

[@doublea8888]

Fantastic as always guys... best eq vids on the web..

[@golf007sd2]

Oooooh my....on multiple fronts gents. Ball speed, clubhead speed off the charts...not to mention the impact on one's pocketbook. Veeeeeery interesting. There is surely something there....testing, and more testing is indeed the order of the day. With all that said, when did Matty start hitting this club given all the testing you guys conducted the day of these events? Hence, before or after the best driver tests; the ShalAlange, etc etc..

[@retired8123]

Topic suggestion: with news out Bryson may use a 48 inch shaft at the Masters lets give Matty his shaft in 48" to see how much gains in distance we may expect and how much control is lost... Mostly a fun one with The Masters around the corner

[@NathanTilesTheWorld]

You guys bring LEGIT content. I've been binge watching!

[@hakanwesterdahl9324]

Ive posted it before , Matt could hit 300 yard drives with a broomstick , 🤷🏼‍♂️🏌️🇸🇪💪😂😂 so impressive ! Keep up the good work guys , we learn sooooo much

[@josephclites6971]

Wow...talk about interestingly mysterious...so cool. Great content!!

[@toads807]

Let’s be real. The hot pink gets Matt’s juices flowing. Bit of a placebo effect.

[@Ho3n3r]

The pink definitely gets my shaft stiff.

[@toads807]

According to this review, only as stiff as it needs to be

[@gimbalair]

nah, go back on you tube and watch the korean language vids from May, they guys at the rnage were hitting big numbers with it too and there were black available

[@vwilhelm5788]

It’s provocative, gets the people going.

[@poohbear4130]

Finally I’ve been wondering about these for a while!

[@stevetroiano9902]

Let’s get your slower swing speed player on this ASAP and see how it plays for them. And, hopefully a color change is coming. Pink is just gaudy.

[@mrresearcher4354]

Also comes in rainbow black

[@firesquad6150]

Pink looks so good

[@skylarsteel91]

With this video and Bryson contemplating the 48” driver.... I think we need a video of Matt hitting a 48” big stick

[@keithkatz1350]

You have to see what this does with slow swing speeds. Maybe it's the holy grail for us old guys. 😻🙀😻🙀😻🙀🏌🏌🏌🏌great stuff as always Cheers from NorCal

[@pieman6999]

Would love to see the test through multiple different swing speeds, perhaps expect to see the extra speed hold up but really interested in the dispersion side. Thought provoking content as usual guys, much appreciated, thanks

[@patrickgreenfield1361]

Awesome vid guys, love the outside the box thinking!

[@MrKydaman]

That shaft is like oobleck. Sudden force and it stiffens right up, but it flexes easily at low speeds.

[@cdolson5889]

Great work to show that at least there is "something" there. This isn't Hammer X sword shaft stuff, but some kind of real technology. From what I've heard, the Korean company behind it is no joke either.

[@allthatgolfkorea]

Thank you for your kind words. The company is DUMINA and also make AutoPower shafts.

[@colehardy4794]

I started to get excited until I saw that Matt could carry the ball 315-320 with his own driver and shaft

[@ianstyring9602]

Wonderful video guys. You know you've got us all chomping at the bit for more info on this. I'm now searching for 50g x flex shafts on eBay.....

[@stuartanderson2528]

Matrix 50g black tie for sure.

[@as_Kaasa]

Really fun to see you guys experimenting.

[@bigwill6974]

What Matt alluded to about hitting it worse the more he hit it is familiar to me. I’ve always struggled with lightweight equipment, especially as I get loosened up and more comfortable. It’s a shame, because 20 yards extra carry is 😳 . I’d love to give it a go, but I’m not good enough to be able to handle the lightweight stuff.

[@gregoryh4601]

Iron Matty again at his Best. Thanks for the Video, we all could use more Distance as we get older. I also want to say by watching your videos and watching Matt ,I am hitting my Driver very long. Thanks. Greg of Ohio

[@RealHIFIHelp]

Would be fun to see you guys compare these shafts to Tiger's old x100 steel shaft. I'd like to see those comparison numbers, so we can see how big a difference there is between the new graphite shafts and the year 1995 standard.

[@theboombapp6351]

It would be a huge plus if you guys could promote and talk about how much a fit club can improve strike from Driver to PW. You both have the proof of the benefits, can you talk about why all golfers need to be fit and how much it can sharpen contact and tighten that pattern off the face. IF you want speed, it comes with strike versus anything else.

[@NathanTilesTheWorld]

Incredible video. So fascinating.

[@jonosborne4529]

Wow! Honestly I am lost for words. 🔥

[@alfredtu2]

The fact that you can just pick it up hit good, go to a different club come back and hit it good again.. maybe auto flex is designed for just that hit your tee shot, hit your iron/wedges and come back to driver so it’s easy to hit🤔 more speed and good accuracy since you basically never gonna hit two drivers consecutively.

[@ianmcgaughey1]

Pretty interesting. I remember messing around with a material in engineering classes in college that got stiffer when you applied a force to it. We made a rod that got stiff when you swing it fast but softer when you swing it slow. I don't remember the name of the material. The military was looking into the same material to armour tanks and Humvees for IEDs. I'd like to know more about the shaft but their website doesn't work.

[@neddebeck9173]

I've been waiting for this!! Heard about the unicorn auto flex recently.

[@Mboogie69]

That was crazy! I would love to test that and I’m not a shaftoid by any stretch of the imagination

[@최점룡]

It's really mysterious result and incredible. But in Korea, I'm the one who h is using this rod and for me, my opinion is very acceptable. What I want to say is, really mysterious.

[@mcalette]

That was extremely interesting!

[@gilbertamthor5098]

Unreal boys! Those are scary numbers and a scary price tag.

[@paulkoppenheffer5323]

crazy stuff. Kind of like Thor's hammer, it can only be wielded by one man and that man is Matt Blau. He is somewhat vikingesque with his swarthy beard, who would dare challenge the man who carries it 343 with a pink shaft. Suffice it to say Matt is secure in his masculinity. Ian, get Matt on a weight gain and workout regimin, get him up to about 265 pounds and fit him with a 48" autoflex shaft and get him smashing it 4 hondo off the tee. All the best and protein shakes for everyone.

[@Golfzilla70]

matt dechamblau :)

[@paulkoppenheffer5323]

@@Golfzilla70 I like it. The bearded bomber

[@carterwhite6777]

Chris Kennedy please realize dechambeau isn’t the longest on tour

[@Golfzilla70]

@@carterwhite6777 wow, ok, who is? I know Matthew Wolff hit it by Bryson a few times at the US Open, but those were lower trajectory runners. For carry distance and ball speed, it looks like Bryson carries trees and traps better than just about anyone (I confess i don't watch massive amounts of golf on TV, and it's an honest question about who is the longest).

[@carterwhite6777]

Chris Kennedy Yeah that makes sense.. actually tony finau has has the highest reported ball speed at 206 mph, and he doesn’t even take the club back all the way

[@joshnusenbaum7687]

This video was mega!

[@fernandobulnes9726]

Reminds me of the D3O material in head youtek tennis rackets. A little bit like a non nucleic liquid that hardens with harder impacts and flexes with softer impacts

[@kirbygameclips7433]

We’re gonna need y’all to have a giveaway for this shaft for sure!

[@TheVillest]

looks like i’m a little late to the game! until this morning i never knew these auto and free flex shafts even existed. would love to see how this performs with a little lower swing speed in the 100-105mph area. it would have to be a major improvement to spend that kind of money on a shaft

[@toolguy1515]

I’d be curious to see this shaft with different head combos and do a fitting around the shaft. I’d bet with the right combo this could be a beast.

[@mvansb23]

All is right in the world north of 180. Make sure to test big Al on this whenever he finally makes it to Canada!

[@jasonwarlond6743]

You need to get Bryson DeChambeau in with his planned 48 inch shaft with this puppy. Could see 400 numbers!

[@En5an3]

fascinating stuff lads. if matty can dial that shaft in..... scary.

[@joeduffy3670]

Would love to see ian test it with his swing speed to see ian gains ,love your videos guys stay safe

[@tartantam1927]

Holy cow that was some striking

[@rogerfleming8358]

Interesting longer and lighter when others say shorter and stiffer 🤔 great video guys 👌🏻

[@TheMajortom75]

Fascinating. Would love to see more testing

[@harrysmiles]

Very interesting results. I'd love to see Mark Crossfield test this to see if he found any difference

[@thechaa3176]

Crazy expensive Crazy numbers Crazy colors Where can I get one?🤓

[@andrew_lee_]

One nice thing to have this shaft is that you can actually share the shaft with anyone..even your wife..

[@rufussthoo4083]

OK. OK, we have to see Ronnie swing one of these. I'd be dead keen to see if a slower swing speed got the same advantages (+5 mph ch speed and 20 yards) without the disadvantage of the worsened dispersion (on the basis that a given degree of off-line-ness means less wayward over a shorter distance). Please, please ask Ronnie to give it a go.

[@chynz330]

As an Asian I can give you a hint.. cornstarch sprinkled in with a touch of msg.

[@Real28]

EMMM ESSSSS GEEEEEEEEEE Approved by Uncle Roger

[@JL-qo7cs]

Is this similar to the lag club that Adam Bazalgette promotes?

[@adamhartman4312]

Now what if you go with this shaft but at 44 or even 43.5 will it close the dispersion and still give a decent increase in speed? Maybe also add more head weight or a heavier grip

[@user-fn3zh8nw4f]

On their site they show just the CPM ( 210 ) of the “stiff” model indicating for a swingspeed of 95-120 mph , but they have X and XX model also , I’d like to see the choice of a 100 mph swingspeed player, because for 750 dollars + expeditions and eventually taxes without a fitting is an hard choice . Stiff or X ? A stiff can be tip cut to obtain more CPM .

[@ItsDJOBie]

Absolutely would like to see more tests with this shaft.

[@josephtamulonis9200]

Seems like the shaft plays well with a lighter head and weight more in line with the shaft. Is there a driver head more on the lighter side that is also draw bias with more weight in the heel, maybe like an ST200 or ST200X?

[@canyonaro]

Mavrik Max

[@michaelsteventon7649]

Wow just Wow, where can I buy one of these shafts? UK

[@trevorvanrensburg4979]

Please can Matt do a 'How to drive a golf ball' lesson!! PLEEEEASE!!

[@MrMikejam23]

Great video. I'd like to see this test in a low/med/high handicap Golfers hands.

[@Husker_]

I’d be curious to see you compare it to a senior flex or regular flex shaft with the same length and weight.

[@chrishartman5383]

great video. Agree with a comment below, would be great to see "Mr. Average Matty" hit this at 95mph.

[@bryceerickson6096]

I think if its a good cold swing club it would work really well around the course. Hit it put it away for your next couple shots then get back to it on the next hole.

[@tuxediomafia]

You guys need to test this on the course for real results. Even though its stupid expensive, it definitely performs, and I am very curious to see it on the course also.

[@michaelwilliamson9054]

Would love to see, autoflex shaft, quantum control ball, drive loft at 7 degrees from the Bryson test you did. 390 yards!!!

[@zacharymilos392]

Long drive guys might be interested in this.... Kyle Berkshire already rocks an R flex, I wonder if something like this gives him that extra few mph club speed.

[@nmitch73able]

Recently I saw Joe miller LD guy saying that the new LD shafts are nowhere near as stiff as they used to have to be. Interesting!

[@GolfNut10]

I’ll be watching for Bryson and his bright pink driver shaft soon 😉🤣🤣

[@joegarza1835]

Imagine if Bryson gamed this shaft? And I’ve heard he wants to test out a 48 inch driver to get even further distance. Just crazy but excited to see.

[@kingjoon]

Joe Garza I’ve heard that they contact him but we’ll see if Bryson shows any interest 🙏

[@glennwisse6271]

Very interesting shaft. At $775 though I thought it would be better in consistency. Great review.

[@zachfabrize6399]

Wondering if you guys could please review the pxg driving irons

[@lancedonny3043]

How about a slower swinger? Could be the right shaft for more yards without the big dispersion issues?

[@MM-zb9kc]

Would love to see this in a lower weight with a slower swing speed. Also does the lighter shaft weight make the head feel heavier? I know you said the OEM says to try and keep it at D1 or D2 but wouldn’t most clubs today be close to that with 60 or 70ish gram shafts they come with?

[@ArmiIngratta]

Great video guys!!!

[@wally6193]

Ian, can you give us the different head weights and swing weights that you used on the Mav?