Golf iron shaft cpm chart

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Golf iron shaft cpm chart

Club Custom Fitting available now! Schedule your fitting session with certified professional today! This was a simple device. The flex board allowed the shaft butt to be hooked under a fixture at one end of the vertical board. The tip end then would have a weight hung on it, which caused the shaft to bend into a profile that could be measured against the flex board. So, you got a view of the shaft under stress to see if the butt was firm or the shaft had a weaker tip.

Most importantly, though, the board showed what flex range the shaft fell into, such as if it was a softer ladies Lsenior Aregular Rstiff S or extra stiff flex X.

With the invention of the frequency analyzer machine, the time consuming task of using the flex board was not as important. Now club makers could get a fast, accurate reading of a golf shaft by checking the cycles per minute CPM the shaft would vibrate. A modern shaft frequency analyzer quickly and precisely measures flex type by recording machine-generated vibrations.

The frequency analyzer works by clamping the butt end of the shaft in a fixture and then twanging or plucking the tip end. The tip is bobbing up and down through a light source usually a type of photo-electric eye and produces CPM readings of the shaft.

A cycle is created each time the shaft tip goes through the light beam. A look at how shaft flex used to be determined using a weight and chart essentially. Take a ruler and place 1 or 2 inches of one end on a flat surface like a desktop.

Hold that section down firmly. Let the remaining length hang off the desktop. Twang the ruler tip and you will see the body of the ruler bounce up and down. Note the speed it moves. Now increase the section that you are holding down where it is now about 3 to 4 inches.

Go ahead and pluck the tip end again. A homemade shaft deflection board used to determine golf shaft flex, old school style.

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The frequency analyzer also can tell you if a shaft has a slightly stiffer or softer side to it, depending on which way you orient the shaft in the machine. Due to the manner that steel shafts are manufactured, the tubular steel shafts tend to be very uniform in flex no matter which way you position the shaft in the fixture.

Composite graphite shafts, when manufactured in a professional manner, are also very uniform. Some shaft companies go to the trouble of identifying the location of this spine and mark it for the club maker. What seems to be a continual bone of contention is what to do with the knowledge of where the spine is located. Some folks believe that it should be positioned down the back of the shaft at assembly, while others think it should be oriented on the left or right side of the shaft.

But the USGA does allow club makers to position the shafts a certain way. Here is a basic formula your average golfers can use to determine what kind of flex they should have on their shafts.

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10 Best Golf Shafts 2020

Search our blog. A Guide for essentials when golfing. Featured video. Features Latest Video Deals Events. Custom Fitting Guide Learn More. Tour Pro Contributors Nick Rousey. GolfBoard Preview.Add to this the fact that the shaft flex designation does not represent a single flex, but rather, a range of flexes that have arbitrarily been assigned to a particular flex designation.

For instance, average frequency ranges in steel iron shafts range from approximately cpm for an A-flex shaft to approximately cpm for an X-stiff flex shaft based upon a typical 5 iron. This 70 cpm difference is arbitrarily divided up into ranges and assigned the flex designations we are used to seeing, but bear in mind that the various shaft brands divide this range up differently, and in any case, there is no exact cpm for any particular shaft flex, but rather, a cpm range.

There is a story concerning Jack Nicklaus where he bent his 8 iron his favorite iron during a tournament round. He took it to the tour van to replace the shaft and told the technician that it was a stiff shaft. Upon testing, the technician told Jack that it was, in fact, a regular flex shaft. Jack berated the technician for a few minutes that he should ever question him in the matter of golf so, in the end, the technician put in a stiff shaft.

Jack came back later and complained that the club did not feel right and that the technician had screwed up, so the technician went ahead and replaced the shaft with a regular flex shaft without telling Jack. After winning the tournament Jack came back and praised the technician for a job well done.

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Another point which most golfers do not realize about shaft flex in a conventional varying length set of irons is that, regardless of what the shaft bands state as to flex, every one of the irons in the set has a different flex getting progressively stiffer from the 3 iron to the wedges. Our shafting method is completely different that any other brand of golf clubs in the golf industry in that we do not shaft our golf clubs based upon arbitrary flex ratings, but rather, upon precision balancing.

Once this perfect balance is achieved the concept of shaft flex frequency disappears and the golf club will perform at its peak performance level regardless of swing speed or strength.

You can liken it to a precisely balanced bull whip where there is a perfect transfer of power along its length from the butt to the tip regardless of the strength of the person using it. Our 1 Irons have been played by professional golfers and long-drive champions with extremely high swing speeds and are played by senior men and women golfers with very low swing speeds.

The results of our studies and testing over the past two decades have shown that our shafting method produces the highest level of performance for any golfer. It might be interesting to note that we have never had a comment of our shafts feeling stiff or weak in over 20 years. The only comments that we receive, and we receive them daily, are that our clubs just feel right.

If an iron is shafted without regard to its inherent flex plane the shaft will try and rotate around its axis to a position of stability during the swing which creates an oscillation of the shaft and club-head.

golf iron shaft cpm chart

This oscillation results in the club-head literally wobbling through impact. When the shaft is correctly oriented in respect to its inherent flex plane it will resist twisting to any other position when placed under load and will remain stable through impact. It is as if the club-head is riding on rails through the impact zone. Why is it that we are the only golf club manufacturer who uses this approach to shafting?

Simply stated — cost versus profit. However, our goal has always been to produce the highest performance golf clubs in the industry, and we will always do whatever it takes to achieve this goal.Each shaft manufacturer and some equipment manufacturers have tests that each shaft must pass in order to be released for sale.

Other tests are for informational purposes only and give consumers an idea of certain shaft properties like launch, spin, and feel. Each shaft manufacturer has their own specific set of weight tolerances for each shaft family, model, and flex.

So a 6M3 could range from grams and still pass the quality assurance test. Most aftermarket shafts are within this type of tolerance. Unfortunately, there are no standards in the industry as to how CPM is determined as far as the length of clamp used. Regular flex, 6M3 is We use a 5 inch clamp, grip off, to do our shaft evaluation testing. We use a gram weight for wood shafts and a gram weight for hybrid and iron shaft testing.

We determine the highest CPM rating for each shaft in a test group. Again, there really are no industry standards when it comes to calculating torque.

Graphite Shafts vs Steel Shafts in Irons - Ping i200 Heads

While it is a very consistent way for us to measure torque, our methodology gives torque ratings that are slightly higher than those published by the manufacturers.

Every shaft has a unique set of properties that determine how the shaft performs under load and how it feels during load downswing and at impact.

The type of shaft profiles have literally exploded in the last several years as manufacturers try to get a competitive advantage by designing shafts with different performance characteristics.

These characteristics may also influence the trajectory low to high and spin rate low to high of the shaft. The most common type of shaft profile is the EI Elasticity Index. This is a measure of how elastic the shaft is at a particular point on the shaft. Other shaft profile measurements are based upon CPM cycle per minute at specific points along the shaft. Another measure, which we use, is how much force it takes to bend a shaft a particular distance at various points along the shaft.

Each of these types of measurements will yield a type of shaft profile that will be very similar but will have different specific values at each point of the test. Each shaft, regardless of type steel, graphite, hybrid or composite will exhibit a slightly different stiffness measure at a point on the shaft depending upon its orientation to the measuring device.

For example, a shaft may have a CPM reading of cpms in one orientation and when the shaft is rotated 90 degrees, the CPM reading may bea difference of 5 CPMs. We measure the difference in the load at a particular point on the shaft and the difference between the high and low load.November Golf Club Fitting.

Thanks to help from GolfWorksyou can DIY your swing speed, determine your starting shaft flex, then fine-tune it by finding your transition and release. Remember, this relies on your carry distance with whatever you use for yards, not total distance. That's important! You can't trust roll-out, because the conditions of the course changes:. For example, there's a course near me that has some of its holes lower than the rest of the course, next to a river.

That stretch of three holes has typically wetter, slower fairways- even when it's the middle of July! All you really need is somewhere to hit golf clubs. If it's on the course, set up on the yard marker and try to land the ball on that spot. If you're on the range, use their markers to help you out. It helps if you have something like a Voice Caddy SC to give you an idea of your distance, but not everyone has that as an option.

Golf shafts can be expensive; don't get the feeling you're wasting your money by utilizing the info from this shaft flex chart! Justin Blair is the founder of Green Lantern Golf. If you wanna know more, check out my About Page! Wishon drivers and irons, Inazone wedges for lefties! Please log in again.

The login page will open in a new tab. After logging in you can close it and return to this page. Share 0. Tweet 0. Club Used for Yards. Expected Shaft Flex.

Understand Golf Shaft Stiffness Ratings

Yes, it can help you find your next golf shaft flex! It's simple, really! You can't trust roll-out, because the conditions of the course changes: Early morning: expect less roll-out, because of dew Later in the evening: expect more roll-out, because the grass is dry After a rain: expect less roll-out Even courses with varying topography's can have different conditions in a given round!

This golf club shaft flex chart eliminates the guesswork. It can get confusing trying to figure out what shaft flex you should be playing. Everyone seems to think "S" Find out with this chart! About the author. Justin Blair. You may also like. Check out the Green Lantern Golf Store!Selecting the right flex for your golf club shafts is key to getting the most out of your clubs.

Generally, the faster your swing the speed, the stiffer the shaft you will need. Visit a golf store or fitting professional to have your swing evaluated.

golf iron shaft cpm chart

A professional will be able to assess your swing and speed and recommend the proper flex. Extra-stiff flex may be used by golfers who consistently hit the ball yards off the tee.

This shaft is generally reserved for professional golfers. Stiff flex may be used by golfers who consistently drive the ball yards. This is one of the two most popular stiffnesses and is usually used by mid-low handicappers.

Regular flex may be used by golfers who consistently drive the ball between yards and is also a very popular selection. This stiffness is appropriate for mid-high handicappers.

Senior flex may be used by golfers who consistently drive the ball between yards and is a popular selection with older, male golfers. Ladies flex may be used by women and those who consistently drive the ball less than yards. This is the softest flex available.

golf iron shaft cpm chart

Chi is a professional journalist who has covered sports for more than 20 years at newspapers all over the United States. She has covered major golf tournaments and the NFL as well as travel and health topics. Chi received her Bachelor of Arts in professional writing from Carnegie Mellon University and is working toward a master's degree in journalism.

The five flex categories of shafts can help a golfer get the most out of his or her clubs. About the Author. Photo Credits golf clubs image by itsallgood from Fotolia. Related Content. Types of Golf Club Shafts. Types of Flex in Golf Shafts.

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Selecting Correct Flex Golf Clubs.Post a Comment. The way to measure by this chart. The Flex should be A flex. The flex for it should be Regular Flex. Frequency is the measurement of the butt stiffness stiffness at the grip end of a particular shaft. For years custom clubfitters have used butt frequency as the measurement tool to compare the specific stiffness between various shafts. The shaft is placed into a frequency analyzer and oscillated either up and down or side to side.

A counter on the analyzer calculates the cycles per minute CPM. The higher the CPM reading, the stiffer the shaft and visa-versa. However, butt frequency does not take into account the tip design of a particular shaft. Therefore it is critical to identify the type of ball flight you desire to achieve and find a shaft with proper tip characteristics to optimize trajectory. However, there is "No Standard" measurement in Golf. Posted by KangC at AM. No comments:.

golf iron shaft cpm chart

Newer Post Older Post Home. Subscribe to: Post Comments Atom. My Blog Helpful? Why New Clubs hits the ball Further? View my complete profile.Unless you are a former Customer or someone i already have a PM dialog with, i want reply to tech questions on PMs. Rich Text Editor. To edit a paragraph's style, hit tab to get to the paragraph menu.

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Discussion New and Improved Shaft Chart. What to search discussions comments questions answers polls groups.

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What have you purchased since lockdown? Posted: Jul 18 PM. Comments Howard did all the work. I'm just the messenger. But since you're offering, I'll take a Bud Lite. We really need to have this pinned!! Howard Jones is a gentleman and a scholar. WITB Link. Posted: Jul 19 AM. Thanks very much!!! Nice chart Posted: Jul 19 PM. Posted: Jul 20 AM. Howard Jones asked me to help him post his new and improved shaft chart. Click the chart to enlarge. PKMillerJr wrote:. X strait in, will be 6.

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Its only a chart to fit the need for e certain Cpm strength due to club speed and parameters from the players swing who adjust from club speed. Very helpful Chart says soft-stepping Project X is the equivalent of one full flex. Any idea where black gold regular flex would fit on that chart?

Excellent info!!!


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