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Cobra King F9 Speedback ONE Length Steel Irons

£499.00£699.00

Introducing the Cobra King F9 Speedback ONE Length Steel Irons. The KING® F9 SPEEDBACK™ ONE Length™ irons are engineered to simplify your game by reducing variables in your swing to increase accuracy and consistency.

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Cobra King F9 Speedback ONE Length Steel Irons

About Cobra King F9 Speedback ONE Length Steel Irons

Introducing the Cobra King F9 Speedback ONE Length Steel Irons. The KING® F9 SPEEDBACK™ ONE Length™ irons are engineered to simplify your game by reducing variables in your swing to increase accuracy and consistency.

This product is also available to order in different specs. Book in for your custom fitting today!

Each ONE Length iron is designed to match 7-iron length and weighting to deliver consistent feel, trajectories and distance gapping through the set.

WHO IT’S FOR

Ideal for 5 to 25 handicaps with moderate to faster swing speeds seeking a forgiving distance iron with great feel. ONE Length allows you to swing every iron like it’s your trusty 7-iron.

WHY WE MADE IT

The Cobra ONE Length irons are inspired by the revolutionary swing philosophy pioneered by Bryson Dechambeau on Tour. A ONE Length configuration allows you to use one repeatable setup and swing through the set, resulting in more consistency and accuracy.

Features

ONE LENGTH. ONE SWING.

Cobra King F9 Speedback ONE Length Steel Irons

Engineered using matching 7-iron length and weight specifications, a ONE Length configuration simplifies your game by reducing variability in your setup and swing for increased consistency.

Cobra King F9 Speedback ONE Length Steel IronsCobra King F9 Speedback ONE Length Steel Irons

WIDER SOLE WIDTHS

Wider soles in the 4-6 irons lower the club’s center of gravity to deliver hybrid-like distance, launch and forgiveness with iron-like precision.

Cobra King F9 Speedback ONE Length Steel Irons

PROGRESSIVE SHAFT WEIGHTING

Premium aftermarket KBS shafts in three different weights (KBS Tour 80 in the 4-6i, KBS Tour 90 in the 7-9i, and KBS Wedge in the GW-SW) optimize launch, feel and trajectory through the set.

Cobra King F9 Speedback ONE Length Steel Irons

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.

Cobra King F9 Speedback ONE Length Steel Irons

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.

Cobra King F9 Speedback ONE Length Steel Irons

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.

Cobra King F9 Speedback ONE Length Steel Irons

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.

Cobra King F9 Speedback ONE Length Steel Irons

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.

Cobra King F9 Speedback ONE Length Steel Irons

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

Cobra King F9 Speedback ONE Length Steel Irons

CNC milled V-grooves reduce spin for increased distance and flight time.

8I-PW
MILLED U-GROOVES

Cobra King F9 Speedback ONE Length Steel Irons

CNC milled U-Grooves optimize spin for improved control and accuracy.

GW-SW
WEDGE GROOVES

Cobra King F9 Speedback ONE Length Steel Irons

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.

Cobra King F9 Speedback ONE Length Steel Irons

Shafts

Fujikura ATMOS 6 ONE Length
ModelFlexShaft WeightKick PointTrajectorySpinTip Diameter
Fujikura ATMOS 6 ONE LengthStiff66gMidMidMid0.370
Fujikura ATMOS 6 ONE LengthRegular63gMidMidMid0.370
Fujikura ATMOS 6 ONE LengthLite62gMidMidMid0.370
KBS Tour 80
ModelFlexShaft WeightKick PointTrajectorySpinTip Diameter
KBS Tour 80Stiff100gMid-LowMid-HighMid0.370
KBS Tour 80Regular100gMid-LowMid-HighMid0.370
KBS Tour 90
ModelFlexShaft WeightKick PointTrajectorySpinTip Diameter
KBS Tour 90Stiff102gMid-LowMid-HighMid0.370
KBS Tour 90Regular95gMid-LowMid-HighMid0.370
KBS Wedge
ModelFlexShaft WeightKick PointTrajectorySpinTip Diameter
KBS WedgeStiff120gMid-LowMid-HighMid0.370
KBS WedgeRegular110gMid-LowMid-HighMid0.370

Cobra King F9 Speedback ONE Length Steel Irons – Technical Specs

STOCK SET COMPOSITION – 7 Clubs

Steel: 5-GW

Graphite: 5-GW

IronLoftLie
Angle
Offset
(mm)
COBRA CONNECT Length
(Graphite & Steel)
Standard Length
(Graphite & Steel)
Graphite
Swing Weight
Steel
Swing Weight
RH/LH
419.5°65.0°6.037.50″37.25″C9D1RH/LH*
522.5°64.5°5.137.50″37.25″C9D1RH/LH*
625.5°64.0°4.237.50″37.25″C9D1RH/LH*
729.5°63.5°3.237.50″37.25″C9D1RH/LH*
834.0°63.0°2.637.50″37.25″C9D1RH/LH*
939.0°62.5°2.037.50″37.25″C9D1RH/LH*
PW44.0°62.0°1.537.50″37.25″C9D1RH/LH*
GW49.0°61.5°1.037.50″37.25″C9D1RH/LH*
SW54.0°61.5°1.037.50″37.25″C9D1RH/LH*

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