What frequency do golf shafts read?
Golf shafts typically read between 200 (low frequency) and 300-plus (high frequency); the lower-end of the scale would be a shaft that flexes a lot, while the high end of the scale are very stiff shafts.
How does a true spec Golf fitter measure the CPM?
A True Spec Golf fitter measures the CPM of a golf shaft. Simply put, CPM stands for “cycles per minute,” which measures the frequency of a golf shaft. To obtain this measurement, a fitter or club builder places the grip end of a golf club into a clamp, then pulls on the tip section of the shaft and releases it to make it oscillate.
What is frequency used for in golf clubs?
Correspondingly, if the player wants fairway woods to match the flex feel of the driver, frequency can be used to determine what shafts to use and how to trim them to match. A matched set of irons will have a similar number of cycles between each club in the set.
What is the CPM of a golf shaft?
A True Spec Golf fitter measures the CPM of a golf shaft. Simply put, CPM stands for “cycles per minute,” which measures the frequency of a golf shaft.
How do you use a golf shaft frequency analyzer?
0:453:42Golf Shaft Frequency - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe end of this golf shaft. Once we secure the weight onto the golf shaft is if it were a club. HeadMoreThe end of this golf shaft. Once we secure the weight onto the golf shaft is if it were a club. Head. You can screw that on. Then we're able to put it into this machine.
How do you measure the frequency of a golf shaft?
Simply put, CPM stands for “cycles per minute,” which measures the frequency of a golf shaft. To obtain this measurement, a fitter or club builder places the grip end of a golf club into a clamp, then pulls on the tip section of the shaft and releases it to make it oscillate.
What is golf shaft frequency?
The frequency of a shaft is the number of cycles per minute a shaft will oscillate when one end is fixed (clamped) and the other end is pulled down with a weight attached to it. Ideally a flex (such as Stiff, Regular, or X-Stiff), should correspond to one frequency number.
How do you know what shaft stiffness to use?
Take a look at the distance you hit your driver. This is a good, but very general, indicator. If you carry you driver 250 yards or more, go with Stiff; 230-250 yards, Regular; 200-230 yards, Senior; less than 200 yards, Ladies. Only the biggest of the big hitters is going to need Extra Stiff.
How do you measure a golf shaft flex?
There are numerous ways to measure shaft flex. The most common way is to clamp the butt end of the shaft, attach a weight to the tip, displace it, and measure the CPM (cycles per minute) or frequency that the shaft oscillates. This can also be done in reverse – clamp the tip and weight and displace the butt.
Is a 6.0 shaft Stiff?
5.0 out of 5 stars 6.0 62g is VERY stiff! Great shaft! The only thing I would say to someone who is looking at this is if you normally play a stiff shaft you should go with the 5.5 62g variant. the 6.0 62g shaft is extra stiff in my opinion.
What are frequency matched shafts?
Frequency matching shafts only measures the butt flex of the shaft and allows the club maker to perfectly match a set of golf clubs. It is up to the club fitter to match a shaft to the golfers swing needs. Golf shaft manufacturing processes, while having improved by leaps and bounds, are still imperfect.
How is golf shaft stiffness measured?
Today, frequency analyzers are commonly used as another way to define the stiffness of a club by clamping the butt end and plucking the head to put it into motion. The frequency analyzer measures these movements and calculates how many cycles per minute (cpm) the shaft would oscillate over the sensor.
What does frequency matched mean?
Frequency matching is a sampling design used in case–control studies to assure that cases and controls have the same distributions over strata defined by matching factors.
What happens if shaft is too flexible?
Having a shaft that is too flexible can also cause the ball to hook uncontrollably, because the shaft bends incorrectly, it will come through with a closed clubface causing the ball to go left, this is because the shaft can't handle your swing speed, and the head is rotating too much.
Will a stiffer shaft help my slice?
If you slice, a softer shaft may help. If you hook, a stiffer shaft may help.
How do you know if your shaft is too stiff?
If your driver's shaft is too stiff, the clubhead may not square with the ball at the point of impact, causing slices and fades. If you can't feel the weight of the clubhead loading through the shaft, it's probably too stiff, and can cause errors and issues associated with accuracy such as these.
What swing speed requires a stiff shaft for irons?
between 90-105 mphWho should use stiff flex irons? The starting point for this is swing speed, if you swing your driver between 90-105 mph then you will probably need a stiff shaft. This will benefit you by delivering great control of your club during your swing and stop you spraying it everywhere.
What does 4.5 shaft flex mean?
senior shaftYes the 4.5 means senior shaft the 70 means the grams and the flex of the shaft that's what the guy from Mizuno told me like 70 is extra stiff the way I understood it is that right or wrong thank you.
What does 6.0 mean on a golf shaft?
StiffRegular – 5.0. Regular Plus – 5.5. Stiff – 6.0. Extra Stiff – 6.5. Extra Stiff Plus – 7.0.
How do I know what driver shaft I need?
Another crucial thing to consider in your shaft is its weight. Shafts can range anywhere from 40 to 85 grams. Typically, the rule of thumb is that a golfer with a slow swing might use lighter shaft, and he/she would add weight as swing speed increases.
How to find the frequency of a golf shaft?
Most shafts have a marking with the flex (A, L, R, S, or X). This will give you a rough range of what the frequency could be. To find the exact frequency of a shaft, you will want to bring the shaft to a club-fitter who could measure it with a frequency machine.
What is the right frequency for a golf swing?
What's the right frequency for my swing? The right frequency for your swing depends on the speed and acceleration of your swing as well as WHEN you release the club (when you stop accelerating). When we discuss frequency, we start out with the shaft frequency. But what really matters in the end is the golf club frequency as a whole.
What is shaft golf?
But shafts are an element part of your game. The golf shaft connects you with the club head and transfers massive amounts of energy. This energy in combination with the properties of your equipment causes several movements of the club head in different directions during the course of the swing. Because of the complexity of these movements, specifications are used to describe the characteristics of a golf shafts. Here, we'll focus two important specifications: Flex & Frequency
How to launch a golf club?
The most optimal launch occurs when your club head makes impact with the ball in a square position. You can check to make sure your club head is square if you were to draw a line between you feet and the plane of the face of the club is perpendicular with the line at impact. If the face were open or closed, then your swing will likely result in a sideways trajectory. When your club frequency (as a whole, not just your shaft) is too high or too low for your swing, then you may experience loss of speed and distance as well as an off-center trajectory path.
What is frequency matching?
Frequency matching refers to building all the clubs of your set to equally spaced increments of frequency. Longer clubs will have lower frequency, while shorter clubs have higher frequency (because of the time it takes to return back to square). Club-fitters can fine tune the frequency of each club to be appropriately spaced and thus allow the golfer to bring the club back to square at impact, no matter which club they are using in the set.
What is 1/4 of the vibration period of a golf club?
Physics tells us that 1/4 of the vibration period of a club is the time it will take for the club head to return to the square position. Working with a club-fitter who can measure the dynamics of your swing (how and when you release and how fast you swing), can help determine what this time period exactly is, and thus what would be ...
What happens during the downswing of a golf club?
But what really matters in the end is the golf club frequency as a whole. At the start of the downswing, you are accelerating the club to gain speed. During this period, the shaft will bend, causing the club head to lag behind your hands and body.
Why is frequency matched golf club good?
The advantage of a frequency-matched set of clubs allows a golfer to swing each club in their bag with the same tempo to achieve maximum clubhead velocity at impact for ideal ball flight.
How to measure symmetry of shaft?
It can be used to measure the symmetry of a shaft by comparing the CPM reading around the shaft’s circumference in 6 equal 30° planes. When the CPM varies 3 cycles or less the shaft is considered to be symmetrical.
What is a Digiflex vise?
The DigiFlex system utilizes a constant pressure clamping vise that has been a hallmark for the accuracy of the DigiFlex Frequency Meter for years. The clamping vise comes with both an interchangeable shaft clamp and a tapered-contoured grip clamp for measuring the frequency of raw shafts or gripped clubs regardless of the grip durometer or size.
What is the CPM of a Digiflex 2.0?
DigiFlex 2.0 Frequency Meter reads and displays values from .5 CPM to 30,000 CPM. The display is customized to the customer’s personal or business name.
What is a frequency meter?
The machine used to measure frequency is a Frequency Meter, offered by Mitchell Golf as the DigiFlex 2.0 Frequency Meter. First introduced in 1994, the DigiFlex Frequency Meter has set the standard in the golf industry for accuracy and reliability.
What is a Mitchell 2.0?
Mitchell Golf’s DigiFlex 2.0 Frequency Meter. The machine used to measure frequency is a Frequency Meter, offered by Mitchell Golf as the DigiFlex 2.0 Frequency Meter. First introduced in 1994, the DigiFlex Frequency Meter has set the standard in the golf industry for accuracy and reliability. The DigiFlex 2.0 uses a laser beam to accurately ...
Who invented the rate of oscillation of a shaft?
Dr. Joe Braly introduced club makers to using the rate of oscillation of a shaft (frequency) to understand its stiffness. In the 80’s he did research on the PGA tour. He used a frequency instrument to measure the shafts used by the tour players. From this research, he developed a formula for the stiffness of ratio of the different irons in the set. The ratio he found was 4.3 CPM (cycles per minute) per one half inch of length of club.
Who first discussed shaft oscillation frequency?
The concept of using shaft oscillation frequency was discussed in the 1968 book, “Search for the Perfect Swing” by Alastair Cochran and John Stobbs. “Search for the Perfect Swing” is one of the first explorations of golf technology.
What was the PCS equalizer?
They established a standard primarily focused on one of the instruments. Software knows as “The Equalizer” was sold to PCS members. It came with a calibration stick that was used to standardize the readings to a common denominator across instruments. During its dominance as a club makers organization the PCS did not promote discussion of alternative shaft stiffness systems. Nor did it inform its membership that the shaft designers and manufacturers primarily used EI for understanding shaft stiffness.
What is PCS in golf?
Inspired by the research done by the Braly’s, a club makers organization, the PCS, endorsed and taught frequency based club making to its many, many members. it was a time when shaft design was not as complex as it currently is and when frequency instruments were one of the few tools available to club makers for measuring shaft stiffness.
What is equalizer software?
It came with a calibration stick that was used to standardize the readings to a common denominator across instruments. During its dominance as a club makers organization the PCS did not promote discussion of alternative shaft stiffness systems.
Is shaft frequency used in stiffness?
Shaft frequency is not of much use in evaluating shaft stiffness. The problem for club makers and fitters who recognized the importance of shaft profiling was that there was not an affordable EI instrument until I designed and manufactured one. They used the frequency instruments they had. As with all technologies, instruments and expertise evolves. Frequency profiling and frequency rating of shaft stiffness were an attempt by club builders to reverse engineer shaft knowledge not shared by the shaft companies. Affordable EI instruments have closed the knowledge gap between the shaft engineer and the club fitter.
Who owns Royal Precision shaft?
The Royal Precision shaft company was purchased by True Temper and with that purchase was the numeric stiffness rating patent. Here is a look at how that system is currently applied.
What does a true spec golf fitter measure?
A True Spec Golf fitter measures the CPM of a golf shaft.
How many cpm should an 8 iron have?
Typically, according to True Spec, irons should have about 4 cpm difference per half inch. That means if your 7-iron measures 304 cpm, then your 8-iron should be 308 cpm.
How effective is CPM?
So, C PM is truly effective when comparing shafts within the same family or model. By matching CPM, or “frequency matching,” club fitters and builders can ensure that a certain shaft matches the frequency reading of another similar shaft. Let’s paint a scenario to illustrate how CPM can be used properly. Say you’re getting a club fitting and you’re ...
Is CPM a true flex?
Many believe that CPM is actually the true flex of a shaft, but after speaking with the expert fitters at GOLF.com’s sister company True Spec Golf, that’s not entirely the case. Every shaft company makes shafts differently, and the flexes those companies display are different, too.
Can CPM match shafts?
In conclusion, CPM can be a very effective way to match shafts, but not as effective in determining true flex.
Is CPM a good way to measure flex?
That being the case, CPM isn’t a perfect way to measure flex. “ [CPM] will put you in the right area of the stadium, but not the right seat,” Briand syas. “If you’re comparing shafts that have the same balance point and the same flex point, then the cycle comparison for flex is fairly accurate.”.
What is the X stiff range?
X-stiff – This is the range where most high-level players fall. If you’re swinging the driver above 105 mph, it might be time to get some X stiff shafts in your set.
What is the average speed of a senior swinger?
Senior – Slower swingers fall into this category. Between 72 and 83 mph signifies you need to be hitting senior flex.
Can you extrapolate your swing speed to driver?
You should consider that your swing speed for your irons might not extrapolate perfectly to driver (and vice versa), so while a certain flex might be right in some clubs, that might not be the case in others.
Is True Spec Golf affiliated with 8AM?
Our friends over at True Spec Golf shared some data with us that illustrates the shaft that’s right for you based on your swing speed throughout the bag. ( True Spec and GOLF.com are affiliates of 8AM Golf ).
What is L A R S X in golf shafts?
There is no industry standard as to what is L A R S X in a golf shaft. The club builder can use a frequency meter to test the oscillations of a raw shaft with a weight consistent with a driver weight or heavier iron head. This measurement is a baseline to match flexibility with a golfers swing characteristics.
Is there a standard for MFG?
That's the thing. There is no real standard. Each mfg has their own. You can probably find some charts to give you a general idea though.
Is frequency useful for shafts?
Using frequency to compare different weight and length (not to mention profile) shafts in driver s for example is pretty much useless. When it comes to building clubs, there is only one flex to consider - the one that fits the player. What that specific flex category (such as R, S, X etc) or indeed CPM that may be is irrelevant.
Is frequency a relative shaft flex?
Frequency is often confused with relative shaft flex but essentially they are two different things.
That Bob Guy
To get the best representation of shaft frequency, and be able to compare the frequency against numbers on the FM Precision/Brunswick chart, is it advisable to use a gripped shaft, or not. It appears that there is ~15 cpm between gripped and not. Sound about right?
That Bob Guy
Sounds like I've opened a Pandora's box. Blows my mind. Why would the chart show clubs up to 48"?
That Bob Guy
Sounds like I've opened a Pandora's box. Blows my mind. Why would the chart show clubs up to 48"?
That Bob Guy
Sounds like I've opened a Pandora's box. Blows my mind. Why would the chart show clubs up to 48"?
That Bob Guy
Tom Wishon uses more points for his profiling measurements: 11", 16", 21", 26" 31", 36" and 41" (5 inch increments). If you want to cut that down you might try 10" or 12" increments.
rybo
So when you were doing fittings how did you determine what shafts (ie different manufacturers and models) for a particular golfer to try?