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What IS IT
SPEEDBACK Technology pushes the boundaries of conventional iron shaping to optimize low CG and high MOI, creating Cobra's longest, fastest, and most forgiving iron.
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WHO IT'S FOR
Ideal for 5-25 handicaps with moderate to faster swing speeds seeking a more forgiving distance iron with enhanced feel.
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Why we made it
In early testing, we found drastic performance improvements were possible if we pushed the shape beyond the boundaries of the conventional game-improvement iron. This lead to the introduction of SPEEDBACK Technology - a revolutionary advancement in iron shaping that optimizes low CG and high MOI for true distance with forgiveness.
SPEEDBACK DESIGN
Much like a wide-body kit adds to the stability of a racecar, SPEEDBACK shaping utilizes a belt of steel that adds mass low and wide, creating a lower, deeper CG that maximizes ball speed, launch and carry while maintaining a conventional sole width.
FORGED E9 PWRSHELL FACE
An E9 variable thickeness face design is 1.8mm at its thinnest point, expanding the SWEET ZONE to increase distance on off-center hits. A forged PWRSHELL design features a deep undercut sole with a 1.2mm internal Speed Channel that returns more energy to the ball for higher launch and faster ball speeds.
HIGH MOI DESIGN WITH TUNGSTEN
SPEEDBACK adds more mass low and wide compared to a conventional game improvement iron. 33 grams of tungsten is combined in the heel and toe in the 4-7 iron, increasing MOI for maximum stability, higher inertia, and substantial improvements in ball speed, distance and forgiveness.
BEST IN
CLASS FEEL.
A 3-piece multi-material medallion combines aluminum, TPU (Thermoplastic Polyurethane) and acrylic foam. These lightweight materials damp vibrations to promote a softer, more responsive feel that is not normally found in a game improvement iron.
CNC MILLED
FACE AND GROOVES.
CNC milling is a highly precise manufacturing method that is typically only found in forged player's irons. This process allows us to create perfectly flat faces, and precise lofts and groove shapes in every iron we manufacture.
Progressive
spin technology.
Progressive groove shapes are CNC milled into each face to optimize spin performance in the long irons, mid-irons and wedges.
4-7i
MILLED V-GROOVES
CNC milled V-grooves reduce spin for increased distance and flight time.
8i-PW
MILLED U-GROOVES
CNC milled U-Grooves optimize spin for improved control and accuracy.
GW-SW
WEDGE GROOVES
Tighter-spaced, U-grooves increase spin for improved precision around the green.
Progressive
hosel lengths.
Shorter hosels in the long irons (4-6) lower the CG to increase launch and distance, medium hosels in the mid irons (7-9 iron) create a gradual transition from the long irons and taller hosels in the wedges (GW-SW) raise the CG to promote control and accuracy.
TOUR AFTERMARKET
STEEL SHAFT
KBS TOUR 90 (S, R)
The lightweight design of the KBS Tour 90 makes it ideal for players with moderate to faster swing speeds seeking high launch with added spin to maximize distance without sacrificing control.
PRACTICE SMARTER.
IMPROVE FASTER.
COBRA CONNECT grips feature embedded sensors that work in conjunction with the Arccos Caddie mobile app - the award-winning connected golf system that helps players of all skill levels make smarter, data-driven decisions and shoot lower scores.
Learn More
Automatic Shot Tracking
Receive real-time data for all aspects of your game.
True Club Averages
Select the right club for every shot with SMART DISTANCE insights.
Advanced Analytics
Use detailed performance breakdowns to guide equipment choices, practice & more.
Golf's Smartest Caddy
Trust artificial intelligence to reveal your best strategy tee to green.
CONNECT YOUR
ENTIRE SET.
With your purchase of a set of KING F9 SPEEDBACK irons, you will receive your choice of FREE additional Arccos Caddie Smart Sensors or COBRA CONNECT grips so you can connect your entire bag (from your driver to putter) and experience your first set of Smart Clubs.
Receive game changing insights FREE for 3 months, then subscription rates apply.
How to redeem:
- Purchase a set of KING F9 SPEEDBACK irons.
- Download the Arccos Caddie app on your mobile device.
- Follow the instructions through the Arccos Caddie app to redeem your FREE Cobra Connect grips or Smart Sensors.
Download Arccos Caddie:
Specifications
STOCK SET COMPOSITION - 7 Clubs
- Steel: 5-GW
| Iron | Loft | Lie Angle |
Offset (mm) |
COBRA CONNECT Length (Graphite & Steel) |
Standard Length (Graphite & Steel) |
Graphite Swing Weight |
Steel Swing Weight |
RH/LH |
|---|---|---|---|---|---|---|---|---|
| 4 | 19.5° | 62.0° | 5.4 | 39.50" | 39.25" | C9 | D1 | RH/LH |
| 5 | 22.5° | 62.5° | 4.6 | 38.75" | 38.50" | C9 | D1 | RH/LH |
| 6 | 25.5° | 63.0° | 3.9 | 38.00" | 37.75" | C9 | D1 | RH/LH |
| 7 | 29.5° | 63.5° | 3.2 | 37.50" | 37.25" | C9 | D1 | RH/LH |
| 8 | 34.0° | 64.0° | 2.6 | 37.00" | 36.75" | C9 | D1 | RH/LH |
| 9 | 39.0° | 64.5° | 2.0 | 36.50" | 36.25" | C9 | D1 | RH/LH |
| PW | 44.0° | 65.0° | 1.5 | 36.25" | 36.00" | D0 | D2 | RH/LH |
| GW | 49.0° | 65.0° | 1.0 | 36.00" | 35.75" | D0 | D2 | RH/LH |
| SW | 54.0° | 65.0° | 1.0 | 35.75" | 35.50" | D1 | D3 | RH/LH |
Shafts
| Model | Flex | Shaft Weight | Kick Point | Trajectory | Spin | Tip Diameter |
|---|---|---|---|---|---|---|
| Fujikura ATMOS 6 | Stiff | 66g | Mid | Mid | Mid | 0.370 |
| Fujikura ATMOS 6 | Regular | 63g | Mid | Mid | Mid | 0.370 |
| Fujikura ATMOS 6 | Lite | 62g | Mid | Mid | Mid | 0.370 |
| Model | Flex | Shaft Weight | Kick Point | Trajectory | Spin | Tip Diameter |
|---|---|---|---|---|---|---|
| KBS Tour 90 | Stiff | 102g | Mid-Low | Mid-High | Mid | 0.370 |
| KBS Tour 90 | Regular | 95g | Mid-Low | Mid-High | Mid | 0.370 |
Grips
COBRA Lamkin Crossline (58+) Connect - Black
Customer Reviews 7 item(s)
- F9 irons
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Review by PapaRutz - 3/17/2019Rating Went and got fitted to these F9 irons and after hitting about 10 different brands and models it came down to these irons being by far the best for me. I came out of Mizuno 900 Hot Metals and was consistently hitting the F9's, 15-20 yards farther and a tighter dispersion. Can't wait to get them in.
- F9 Inspired Improvement
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Review by john - 3/16/2019Rating Hi. I had an old set of Fly Z irons. I went to my local Pro fitter looking for a new 3 Wood, he noticed my irons didn't fit me and advised irons first. I tried all the main brands as I have no 'go to' manufacturer. The F9 was head and shoulders easiest to hit long and accurate and i am a 12 handicapper. After 6 weeks and 5 round I love them even more, reassuring, easy to hit, predictable long distances and fairways look bigger! Just brilliant. Ordered the 5 iron last week to replace a Hybrid. Just love em.
- Just Love These F9s
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Review by Johnny Bakewell - 3/9/2019Rating Hi. Traded in my old Fly Zs for a new set of clubs. Tried out a lot of irons at my custom fitting and came away with F9s. Just love them, solid soft contact off the face, they go miles and I can control them. Let me get away with clippers and toe shots too. Fantastic irons for me and I’m off 12. I’m going to add the 5 iron and sand wedge to the set as they will improve my long and bunker game I’m convinced now! Enjoy
- Amazing irons
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Review by SC - 2/19/2019Rating I purchased the F9 irons after doing a comparison against 5 other brands. I received my custom fitted set this week and as in the store, after my first couple of rounds, I am getting an additional 15-20 metres per club and some up to 25 metres. But the most amazing this has been even when I mis hit a shot, it’s still goes a good distance and is fairly accurate. I am an 11 handicaper and have shot 77 and 75 with my first two rounds using them. The clubs feel fantastic and are so easy to make good contact. Thoroughly recommend them to anyone thinking of upgrading.
- Amazed
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Review by J.R. - 2/9/2019Rating Went back to golf galaxy after getting fitted for the new M6 irons. Wanted to go make sure of my fitting one final time before purchasing. I was offered to try the F9 to compare. Boy was I glad I didn’t buy the M6’s. My average with the M6 7 iron was 158. My average with the F9 was flying 180 and with 200 after roll out. I was taking dead aim at a 156 yard pin and crushing it over the green. I’ve never hit any cobra club in my life and bought a set 4-PW on the spot. Can’t wait to get them in.
- Love em
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Review by Crush - 2/6/2019Rating Tried them at the store, first they looked a little different and felt weird but I also had bad shoes on for swinging a club. A week later went back to store with good shoes. Tried a number of other brands and finally said let me try the f9 again. Was hitting almost 10 yards further than my average, CONSISTENTLY. clubs arrived yesterday and went and hit them today and hitting 5-10 yards farther consistently and my dispersion is way smaller. Love them!!!
- new golfer
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Review by mael - 1/28/2019Rating good for new golfer