What we say...
Cobra's King F9 Speedback Driver is the first of its kind to combine both an aerodynamic head and low centre of gravity
A few years ago, Cobra’s drivers were arguably more famous for their crazy colour schemes than their generous tech. This year’s Cobra King F9 Speedback combines the best of both.
Inspired by supercars and claiming the best aero package the brand has ever made (dubbed “aeroficiency”), Cobra say the F9 Speedback is the first driver ever to deliver an aerodynamic head and and low centre of gravity. What does that mean? A faster clubhead, combined with less spin, which equals more distance.
There are three pieces to the distance formula – speed, low spin, high launch. According to Cobra, two of them have never been put in a driver at the same time.
“There’s always been a conundrum about being able to produce an aerodynamic driver or a low CG driver,” adds Miraflor. “They’ve never been done together, and that’s what we’ve worked on for the last two years.
“Last year’s F8 was all about accuracy, with the first CNC milled face in a driver. All the Cobra drivers over the years have been very forgiving. All that stays – but F9 is specifically about distance.”
Cobra King F9 Speedback Driver: What you need to know
Cobra’s 360 Aero Technology utilises lightweight polymer crown trips and titanium sole trips positioned relative to the direction of airflow around the F9 Speedback clubhead, further helping to reduce drag.
Strategically placed “PWR Ridges” are designed to enhance aerodynamics and add rigidity to the carbon crown structure, creating more energy return and more power to the ball to maximise speed and distance. Fowler told Cobra it frames the ball better, while the engineering benefit is that it stiffens the carbon structure. It’s also another aero aid, like the bonnet of a sports car.
As in previous Cobra clubs, everything in the Cobra F9 Speedback range for 2019 features Cobra Connect Powered by Arccos, the award-winning connected golf system that helps players of all skill levels make smarter, data-driven decisions. Electronically embedded sensors in the grip automatically record the distance and accuracy of every shot so golfers can track their improvements round-to-round.
The yellow and black colour scheme in the Cobra King F9 Speedback driver will take centre stage, but there’s a second colour called avalanche too. It’s almost the colour of snow – not quite pure white.
Watch: Best 2019 Low Spin Driver Test
Cobra F9 Review: TG Verdict
If there was any perceived performance gap between the biggest brands' drivers and Cobra, the gap has slammed shut in 2019. The F9 truly is top drawer, and a very solid performer as both a low spin or forgiving driver, thanks to its movable weight tech. It looks great at address, isn't decked out in bright colours on the crown and it sounds fantastic.
It's also the least expensive 2019 premium driver, which for us hands down makes it the best value for money driver in 2019. That doesn't mean to say F9 is a budget option – it's not. Irrespective of how much you're happy to spend on a new driver, if you're looking at the biggest selling 2019 models from Ping, Callaway and TaylorMade, you should have the F9 on your shortlist, too.
Cobra F9 Speedback: Key Tech
Speedback aero design
Miraflor says: “The yellow areas are the really aerodynamic bits of this driver. Our aerodynamicists taught us you can have a blunt face that caused high wake systems, where the air separates from the clubhead, or you can have a shape like an aeroplane wing that’s very aerodynamic.
"So we started by rounding and softening the edges on the front – that’s 75 per cent of the aero benefit right there. Then we raised the skirt area at the tail end, which also raises the crown, and now it looks more like the cross section of the wing of an aeroplane. Now it’s aerodynamic.”Watch: Driver Test - F9 vs G410 vs M6 vs Epic Flash
Miraflor says: “A low CG driver like our King LTD was very fast off the face, with low spin and high launch – bit it wasn’t the most aerodynamic because it had a blunt, tall face. In order to lower the centre of gravity in the F9, we created a multi-material structure down low that houses a 14g tungsten weight.
"That and the aero package are the keys to this product. When you raise the skirt it raises the CG, so we had to develop the largest crown we’ve ever made. It’s so large it actually wraps around the body. But it’s so light it saves us more weight. It’s 13g lighter than a titanium crown and 4g lighter than the carbon crowns of our competitors. It saves us weight which we moved lower in the head, to lower that CG.”
CNC milled face
Miraflor says: “We’ve had a lot of momentum this year from our CNC milled face, which allows us to be very precise – five times more precise than polishing.”
Precision milling allows engineers to achieve more precise face thickness and tighter tolerances compared to the manual hand polishing method used on traditional drivers, resulting in improved bulge-and-roll curvatures and a face that is 3% thinner and 10% lighter.
For the first time, with the precision of CNC milling, Cobra’s E9 Speed Tuned Technology optimises the bottom roll curvatures on the face of each F9 Speedback driver to tune launch and spin for different swing speeds and attack angles.
REVIEW: Cobra King F9 Speedback initial feedback
"We knew it was good, from testing and internal player testing, but we also did some testing with everyday golfers, with their own driver versus an F9 with the same loft and shaft type,” says Miraflor.
"We had 58 testers, average handicap 14, average age 52, and 88% of these golfers hit the F9 further, 30% by over 10 yards. The average was 7.8 yards longer than their gamer. How did they get it? An average of 1.9mph ball speed faster, they launched it higher and spun it less. Compared to our own F8 driver, in our own testing, the F9 was almost nine yards longer."
REVIEW: Rickie Fowler on the Cobra King F9 Speedback driver
"We used a lot of things for inspiration with this club," said Miraflor. "We studied the fastest things on the planet – planes, race cars – and the latter especially. And the red reminds us of the brake calipers.
“Rickie said it’s ‘business up top, party on the bottom’. He loved the look. I introduced it to him at the Players in May in five different colours, because we wanted him to have a say in the look. He’s really into his cars – he’s just bought a new Porsche GT2 RS – and I explained the rear ends of those cars all have diffuser systems to improve airflow, and their weight is down low to help them stick to the road.
"Both things help them go faster, and he got it straight away. He actually asked for a plate for the back that says ‘Too Fast for You’ that people can see on TV!"
- RRP: £349
- Lofts: 9°, 10.5°, 12°
MyFly8 lets you choose eight loft settings (and 3 draw) to fine-tune trajectory and launch conditions while Smart Pad ensures a square clubhead at address.
- Shaft options:
High-launch/mid-spin: Helium 50 (5F3 – in Reg or 4F2 – Lite)
Mid-launch/mid spin: Fujikura Atmos Tour Spec Blue 6 (X-Stiff, Stiff, Regular)
Mid-launch/low spin: Project X HZRDUS Smoke 60 (6.5 – X-Stiff; 6.0 – Stiff); or the Fujikura Atmos Tour Spec Black 7 (X-Stiff, Stiff).
- Grip: Each driver comes equipped with a new Lamkin Crossline (58+) Connect.