Golf Glossary
Golf Shaft
In short
The shaft is the long tube between the grip and the clubhead. It transfers your movement to the head and bends slightly in the process. Shafts are made of steel or graphite and differ in weight, length and flex. The right shaft depends mainly on your swing speed.
What is the shaft in golf?
The shaft connects the grip you hold to the clubhead that strikes the ball. At first glance it looks like a simple tube. In fact it is a precisely tuned component. It bends during the swing, stores energy and releases it at impact.
The shaft therefore influences several things: how the club feels, how high the ball flies, how far it flies and how accurate the strike is. A shaft that is too stiff can make the ball fly low and to the right. A shaft that is too soft often lets it fly high and break left. This applies to right-handed players.
Parts of the shaft are the thick end at the grip (butt) and the thinner end at the head (tip). In between the tube tapers. Where it tapers and how thick the wall is determines how the shaft bends.
Graphite and steel shafts compared
Shafts are almost always made of steel or graphite. Both materials have strengths.
Steel shaft:
- heavier, usually about 90 to 130 grams in irons
- consistent properties, good feel for the strike point
- standard in many iron sets, especially for players with higher speed
Graphite shaft:
- lighter, often about 40 to 80 grams
- dampens vibration and is kinder to wrists and elbows
- makes it easier to generate swing speed, especially for slower swings
- standard in almost all modern drivers, also common in woods and hybrids
Graphite is lighter because the material is made of carbon fibres. With less weight the club can be swung faster. That helps players with moderate speed, seniors and players with joint problems. Steel weighs more and is considered more stable and consistent. For players with a fast swing and a good feel for iron play, steel is often the first choice.
The figures are typical ranges, not standards.
Flex: from L to X
Flex describes how much a shaft bends. The usual grades are:
- L (Ladies): very soft, for slow swings
- A (Senior): soft
- R (Regular): medium, the standard for many club golfers
- S (Stiff): stiff
- X (Extra Stiff): very stiff, for very fast swings
A rough guide is your club head speed with the driver:
- below about 120 km/h: L
- about 120 to 137 km/h: A
- about 137 to 153 km/h: R
- about 153 to 169 km/h: S
- above about 169 km/h: X
These limits are not a fixed standard. Each manufacturer sets its own flex. A regular shaft from one manufacturer can be stiffer than a stiff shaft from another. The letter alone therefore says little. Swing rhythm also plays a part. A player with a smooth rhythm often does better with a softer shaft than a player with a jerky start.
Length, weight and other features
Besides flex there are other properties that shape a shaft:
- Length: a driver is usually 45 to 46 inches long, a 7-iron about 37 inches. The Rules of Golf require clubs to be at least 18 inches long. Except for putters they must not exceed 48 inches.
- Weight: it determines swing feel. A shaft that is too heavy tires you, one that is too light makes the swing restless.
- Kick point: this is where the shaft bends most. A high kick point usually gives a lower flight, a low kick point a higher one.
- Torque: this is how much the shaft twists in the swing, measured in degrees. Less torque means less twisting.
Shaft length and lie angle must also match your height and stance. Shafts can be shortened or lengthened. A specialist should do this. The Rules also allow a maximum of 14 clubs in the bag (Rule 4.1b). Each shaft counts as part of its club.
Practical example: the right flex for your swing
A 62-year-old player swings his driver at about 125 km/h. For years he has played a stiff-shaft driver because his playing partners do the same. His shots often fly low and miss the fairway to the right.
A measurement on the launch monitor shows that the shaft is too stiff for this speed. It bends too little and the clubhead reaches impact with too little loft. The player switches to a lighter graphite shaft with senior flex.
The result: the ball launches higher, the slice weakens and total distance rises by around ten metres. On a par 4 of 340 metres the player now drives 175 instead of 165 metres. The numbers are an example, but they show why the choice of flex should depend on measured values and not on pride or habit.
History of the golf shaft
The first clubs had wooden shafts. From about 1820 clubmakers used hickory, which was more durable than ash, apple or beech. Hickory remained the standard for a long time.
In the 1920s hickory was becoming scarce. The USGA allowed steel shafts in 1924 and the R&A followed in 1929. Steel was more stable, more durable and more consistent than wood. Towards the end of the 1920s step-tapered steel shafts became established. That made it possible to tune the bending behaviour deliberately.
Graphite shafts came onto the market in the early 1970s. At first they were costly to make and not always stable. Today they are standard in modern drivers. As a result many players have clubs that are lighter and longer yet remain controllable.
How to choose the right shaft
These steps help with the choice:
- Measure your club head speed with the driver and an iron, ideally on a launch monitor.
- Watch your ball flight. If the ball often flies low and right, the shaft is probably too stiff. If it flies very high and left, probably too soft.
- Check the weight. A shaft that is too heavy tires you in the second half of the round.
- Test several shafts with the same clubhead so that you feel the difference directly.
Typical mistakes are:
- A shaft that is too stiff for reasons of prestige.
- A set of irons with steel shafts although graphite would suit better.
- The wrong flex in the driver because the flex was copied from the iron set.
A fitting takes these decisions off your hands and is often the quickest route to a suitable shaft.
Try it at Golf Lounge
Which shaft suits you is decided mainly by your club head speed. At Golf Lounge Resort Hamburg, TrackMan III measures ball flight by radar, at every bay and in the simulator rooms. The measured values include club head speed, ball speed, launch angle, carry distance and spin. V1 Pro video analysis is available as well. With these numbers you quickly see how fast you really swing, and you can clear up questions about your shaft with specific data.
Frequently asked questions
What is the shaft in golf?
The shaft is the tube between the grip and the clubhead. It transfers your swing movement to the head, bends in the process and releases energy at impact. It is made of steel or graphite. Weight, length and flex influence ball flight, distance and feel.
Graphite or steel shaft: which is better?
Both have strengths. Graphite is lighter, dampens vibration and helps with slower swings. Steel is heavier, more consistent and gives a more direct feel. Modern drivers almost always have graphite. For irons the choice depends on swing speed, joints and personal feel.
Which flex suits me?
Flex depends mainly on your club head speed. As a rough guide with the driver: below about 120 km/h L, 120 to 137 A, 137 to 153 R, 153 to 169 S and above that X. The limits are not a standard, so a test or a fitting with a launch monitor makes sense.
How heavy is a golf shaft?
Graphite shafts often weigh about 40 to 80 grams, steel shafts for irons usually about 90 to 130 grams. These are typical ranges, not standards. Weight affects swing feel and swing speed. A shaft that is too heavy tires you, one that is too light can make the swing restless.
How long may a golf club be?
Under the Rules of Golf a club must be at least 18 inches long and, except for putters, no longer than 48 inches. A normal driver is usually 45 to 46 inches long. A 7-iron measures about 37 inches. For top events a committee may set an upper limit of 46 inches as a local rule.
As of: October 2026