What is FCM golf shaft?

The FCM system or Frequency Coefficient Measurement (system), is a Brunswick / Royal Precision invention by Braley (designer of RIFLE FCM) and Kim Braley (designer of Project X -now KBS shafts).

What does 6.5 on a golf shaft mean?

Extra Stiff
Regular – 5.0. Regular Plus – 5.5. Stiff – 6.0. Extra Stiff – 6.5. Extra Stiff Plus – 7.0.

What is rifle FCM?

5.5 is just the flex, the same system is used today. FCM stands for frequency coefficient matched.

How many CPMS are there between each flex?

Typically there will be 10 cycles between shaft flexes. Thus if one shaft registers 250 cpm and another is 270 cpm, there is a 2-flex difference between the shafts regardless of what flex the manufacturer claims them to be.

Is a 6.0 a stiff shaft?

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.

What does 60 mean on a golf shaft?

60 Gram Shafts – Who Are They For? The shafts in the drivers of most golfers are probably in the 60 gram bracket. These shafts are light enough to help with speed yet heavy enough to give that feeling of more stability during the swing. This shaft weight will be beneficial to most golfers out there.

What is the difference between Rifle shafts and regular?

Rifle Steel Shafts The main difference with Rifle shafts is that the steel is smooth from top to bottom and has no steps. The shaft design and construction uses different technologies to provide greater performance and consistency.

How is shaft stiffness measured?

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.

What is CPM frequency?

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.