Cobra Radspeed Irons Review

Your golf experts: Jordan Fuller & John Marshall.
Updated June 8, 2023. This article was thoroughly audited by multiple golf experts and coaches for its accuracy. You can read more about our rigorous testing protocol here.

Cobra’s King Radspeed irons are ideal for the mid to high handicapper looking to generate fast ball speeds that translate into increased distance from the fairway and tee box.

With exceptional distance from the long irons, and tall shot arc from the short irons, the Cobra Radspeed irons provide well-rounded benefits to your game that can absolutely help lower your scores.

In this Cobra Radspeed irons review, I’ll take a closer look at the iron’s best features, how these golf clubs performed on a launch monitor, and how they can help you perform better on the course.

Cobra Radspeed Irons Review

Best Distance Irons for High Handicappers

Cobra Golf 2021 Men's Radspeed Iron Set
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Specs (4-PW)

  • Loft: 19°-42.5°
  • Lie: 62°-65°
  • Length: 36″-39.25″
  • Weight: D1, D2


  • High launching flight with extended carry
  • Low spin with the long irons
  • The scoring clubs offer soft feel with high spin


  • Lacks finesse and workability of advanced iron sets

Specs and Stock Information

The stock steel shaft for the Cobra irons are the KBS Tour 90, while the stock graphite shaft are the UST Recoil 460 ESX for the Cobra Radspeed irons. The iron shafts are available in regular and stiff shaft flex.

The Lamkin Crossline (58+) Connect stock grip comes standard on the Radspeed iron set.

The Radspeed iron set is also available in several varieties, including the variable length irons I’m reviewing here, also there’s one-length irons under the Radspeed umbrella, and a combo set that includes the Radspeed hybrid.

Cobra Radspeed Irons Features

Radial Weighting Technology

The radial weighting offers a nice mixture of low CG, strong ball speeds, and impressive stability through the impact zone. The 10-gram and 3-gram weights are used in each Radspeed iron to optimize performance.

3D Printed Medallion

The 3D printed medallion offers a strong foundation for the club head that saves weight to boost distance and improve feel. Because it’s 3D printed, the irons are lightweight and feel faster than other irons using composite materials.

Carbon Fiber Topline

The unique dark carbon fiber strip along the top line covers the wider sole, helping you get a clean look at the golf ball without the distraction of a clunky club head. The top line also gives the irons the appearance of forged irons along with its outstanding feel.

Cobra Radspeed Irons In-Depth Review


I’ve always struggled with the chaos of color and sharp lines from Cobra’s design team and the King Radspeed iron set doesn’t deviate much from their previous iron offerings. The golf club uses neon green at its heart along with dashes that resemble something similar to Morse Code.

For the sake of rounding out this Cobra Radspeed irons review, I’ll admit that there’s something unique about the elongated design filled with splashes of chrome, hard edged laser-etched lines, flecked with neon green, charcoal, and black.


On solid strikes that find the sweet spot, these irons feel great and instill a confidence that few clubs in this price range can deliver.

When it came time to hit off-center strikes to test forgiveness for this Cobra Radspeed irons review, I found the Cobra clubs responded beautifully with regard to minimizing vibration and delivering smooth, immediate feedback.

Even on thin shots, the feel of the irons didn’t suffer or cause undue vibration to work its way back to my hands.


Each golf club in this set delivers a smooth, crisp sound. Although the head design leans a bit to the large side, the sound isn’t affected because of the composite 3D printed material attached to the rear of the face.

Although I was worried they may sound thick and chunky, they surprisingly did not after my time with these irons.

In the end, the Radspeed irons provide a sophisticated sound that produces a healthy, clean noise at impact. I was more than pleased with how these clubs sounded after a few trips to the range.


To start the evaluation for my Cobra Radspeed irons review, I immediately took the irons out to the range to hit a quick array of shots. I was impressed right away by how the irons felt in my hands.

With its balanced weight, I could tell the Cobra King Radspeed irons would be enjoyable to hit and after a few swings, I was pleased to find out that I was right. The strong lofts produce a penetrating flight that soars off the club face with a zip that I really enjoyed duplicating on swing after swing.

With the long irons, I noticed right away on the range they offer low spin with penetrating flight. If you have trouble choosing the right club on longer iron shots, the Radspeed irons offer dependable flight that delivers consistent yardages.

The golf ball literally vaults off the face like a springboard. Distance isn’t a problem with these clubs, and if you are looking for accuracy with a helping of length, the Radspeed irons will serve you right.

If I have a chief complaint about the King Radspeed set, it comes from its lack of workability. While most mid to high handicap players might not care about workability, they should because the ability to shape shots allows the clubs to maintain their usefulness over time.

But for casual players, the Radspeed iron set provides more distance, more spin, and tighter dispersion that helps you hit your target zones with more regularity.

What do other golfers think?

On Amazon, 58 reviewers gave the Cobra Radspeed iron set a 4.6/5-star rating with 85% giving the set a perfect score. Golf Digest awarded the Cobra Radspeed irons the coveted Gold Medal in their Game-Improvement category.

What Golfers Like

  • Low center of gravity for high launch
  • Softer feel with exceptional responsiveness
  • Outstanding stopping power on greens
  • Very forgiving on off-center strikes

What Golfers Don’t Like

  • Lower flight with mid-range spin rates
  • Strong lofts sacrifices ball flight

Our Verdict

For my Cobra Radspeed irons review, I really wanted to see if the set provided more distance and more spin than previous Cobra offerings such as the Speedzone irons. While the Radspeed certainly delivered more length over previous models, I was far more impressed with the design of these clubs including the thinner topline and how the design helps save weight.

The clubs offer stronger lofts that boost distance, a benefit for high handicappers. They also provide excellent forgiveness and maintain ball speed on mis-hits toward the toe.

I was generally pleased with how the ball lifted from the club face, although that’s typically standard with a GI iron such as this one.

If you are looking game improvement irons that produce high, straight results with a healthy scoop of forgiveness, the Cobra Radspeed irons are the best choice!