Item #: 14COBF9DMRH
Cobra Golf
Cobra Golf- King F9 Speedback Driver

Cobra Golf- King F9 Speedback Driver

Their Price: $449.99 Rock Bottom Price: $349.99
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At Rock Bottom Golf, your satisfaction is our top priority! If for any reason you are not completely satisfied with your qualifying purchase, you may return that product for full store credit. Look for the 90 Day Performance Guarantee icon for all qualifying products.

King F9 Speedback


The KING F9 SPEEDBACK™ Driver is the first of its kind to achieve true optimization of aerodynamics and low CG, making it the fastest and longest COBRA driver.


For the first time, revolutionary Speedback™ Technology combines the benefits of a highly aerodynamic clubhead shape with a low, deep CG, to deliver the Ultimate Formula for Speed.


CNC Precision Milled Face

The industry’s only CNC milled driver face delivers our thinnest, hottest face repeatedly on every driver we manufacture.


360 Aero™

Polymer crown trips and titanium sole trips are positioned relative to the direction of airflow around the clubhead to reduce drag for faster clubhead speeds.


Ultralight Carbon Fiber Crown

King F9 Driver Tech

Golf's first-ever carbon wrap crown design delivers a larger carbon fiber area and saves 4 grams compared to a traditional carbon fiber crown.


E9 Speed Tuned™ Technology

E9™ and Dual Roll™ technologies are optimized for each driver loft, while CNC milling creates precise bulge and roll curvatures to improve driving accuracy and distance on off-center hits.


Front/Back Adjustable CG

An adjustable weight system allows you to move the CG forward or backward to help you fine-tune launch and spin characteristics to improve your distance.


MYFLY8® With Smart Pad™

8 easily adjustable loft settings help you manage trajectory and fine tune launch conditions to maximize distance while Smart Pad keeps the face square regardless of the loft setting.


Premium Aftermarket Shafts

UST Helium

Designed for golfers seeking a lightweight shaft with extreme stability. Helium is ideal for moderate to medium swing speeds seeking a high-launch and mid-spin profile.

Project X HZRDUS Smoke 60

The HZRDUS Smoke is a midweight shaft ideal for mid to high swing speeds seeking maximum playability and control in a mid-launch and low-spin profile.


The ATMOS Tour Spec Blue is a midweight shaft ideal for medium to high swing speeds seeking a mid-launch to mid-spin profile.

FUJIKURA ATMOS Tour Spec Black 7

The ATMOS Tour Spec Black features a stouter and heavier profile ideal for high swing speeds seeking a low-launch and low-spin profile.



Driver Loft (*) Lie Angle (*) Length (") Swing Weight
9 7.5*-10.5* (.5* Increments) 59.5 45.25 D3
10.5 9*-12* (.5* Increments) 58.5 45.25 D3
12 11*-14* (.5* Increments) 57.5 45.25 D2

Cobra Connect™


Cobra Connect Powered By Arccos™ features electronically enabled grips that work in conjunction with the Arccos Caddie app, allowing users to track their stats and improve their game.

Cobra Golf
Open Box:
Length & Lie:
Included (Matching)
Mens Right Handed
Lamkin Crossline Connect - Black
Shaft Material:
Shaft Name:
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King F9 Speedback
New, Factory Sealed
90 Day Guarantee!
(1) King F9 Speedback Driver
2 Day
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Product Reviews
February 19, 2020
I'll be 61 in a few months. 3 years ago I drove the green on a 308 yard par 4. 3 rounds in with this Cobra I drove the green on a 336 yard par 4. It'll GO!!
ProsDistance Fairways Sound Looks
ConsCost.... if you get it anywhere but Rockbottom!
New Jersey
Best sounding driver
January 27, 2020
Quite possibly the best sound in a driver. Yes it's subjective, but I don't anyone would say this is not good sounding. And excellent performance too, but I feel like performance can be more particular with customization. I'm enjoying it as lot. Only gripe is that I don't love the look of the sole. But I think it looks great from address. Exceptional price on RBG. Really can't beat this value.
ProsPrice Sound
ConsLook of sole
By Corey
Cobra F9 - Good Driver
January 26, 2020
Distance - Good
Forgiveness - Decent
Appearance - Good
Sound - Good
Overall - Happy

Upgraded from stage one TM RBZ Driver, no change in distance but may need to optimize the weights and loft. Forgiveness seems better but difficult to tell. I'm overall satisfied and will need to go to the range to toy with settings.
By Raymond
El Paso Texas
January 26, 2020
This driver is the bomb. I used to be a Callaway user. But now have switched to Cobra. Thank you RBG
ProsIF you want 10 yards more this driver will give to you if you swing properly.
By Ralph
Miami, FL
Great Performance
January 12, 2020
From the very first swing I knew it would be love! Between the new head design and the Helium shaft I am hitting longer and straighter. I have to adjust my line from my normal fade because everything is going straight!
By Tom
New York
A great club, an even better value!
January 6, 2020
Played my first round with the F9 today, hitting 2-3 on every tee so about 30-35 shots total. This club is fantastic, it lives up to the reviews I had seen before buying it. I had never had a Cobra club before, but was excited to try it out based on the price and how its compared to the high-end models from 2019.

I played in 40 degree weather with wet ground and I was right at if not beating my old Ping G30 on its best day in terms of distance and accuracy. I played in in the +1 degree Draw bias setting, which helped keep my fade a little straighter. I can't wait to get this thing in warm weather to see what it can really do.

In short: This club is an incredible value based on what a driver costs nowadays. Don't waste your money on the high-end models, this club is just as good for a fraction of the price. Cobra has earned themselves a new fan.
By Grant
NW burbs Chicago
Love Cobra
January 4, 2020
Adjustability is good, and the head packs a pop.
ProsLove the way the club looks at set up.
ConsI think a different shaft would be to my advantage.
By Marco
PDX, Or.
New driver
January 4, 2020
Out driving my buddies by 10-20 yds, what else needs to be said...
By Dan
New Jersey
Very solid!
January 3, 2020
Have had the club a few weeks, and taken it to the range and the course, the low spin nature of this driver has added 15-30 yards to my drives (assuming a good strike). I clearly have been hanging on to my 18 year old great big bertha way too long, and it turns that there is difference in golf technology in almost 2 decades. The only thing i wish the club had was a weight that could slide from side to side to promote a hook or fade.
ProsDistance, forgiveness.
ConsNo ability to move weights from the shaft to the toe to promote a hook or fade.
By Paul
Lugoff, South Carolina
Great Driver
December 12, 2019
Upgrade from f6.