How to read a club spec sheet like a fitter

Every club and shaft ships with a spec sheet, a small table of numbers that most golfers skip straight past on the way to the price. That table is the club, described honestly. Learn to read it and you can cut through marketing copy in about thirty seconds, the same way a fitter does. Here is what each number means and how much weight to give it.

Loft and lie: the direction numbers

Loft is the angle of the face relative to vertical, and it is the biggest single influence on launch and spin. Two things worth knowing. First, stamped loft and actual loft can differ, since manufacturing tolerances are real. Second, iron lofts vary widely between models, so comparing your 7 iron to someone else's by the number on the sole tells you very little. Compare lofts, not labels.

Lie angle is the angle between the shaft and the ground at address, and it is the most underrated number on the sheet. A lie angle that is wrong for you tilts the face left or right at impact, which quietly bends your start lines. If your irons miss one direction with good contact, look here before blaming your swing.

Length and swing weight: the feel numbers

Length is self-explanatory, but its side effects are not. Longer clubs swing faster in theory and hit the center of the face less often in practice. For most golfers, contact quality beats theoretical speed every time.

Swing weight measures how head-heavy a club feels when you swing it, expressed on a letter-number scale like D2. It is not the total weight of the club. Two clubs can weigh the same on a scale and feel completely different in motion. When a club feels "whippy" or "like a sledgehammer," swing weight is usually the number responsible. It also shifts when you change grips, lengths, or add tape, which is why builds need to be done deliberately.

Shaft weight, flex, torque, and kick point

Now the shaft table, where the jargon gets thickest.

Weight, in grams, is the most dependable spec on the sheet. It shapes tempo, sequencing, and how much of the club you can feel during the swing. Small changes here produce noticeable differences.

Flex is how much the shaft resists bending, labeled with letters like R, S, and X. Here is the honest part: those letters are not standardized. One brand's stiff can measure close to another brand's regular. Treat flex as a rough sorting bucket, not a precise measurement, and never buy on the letter alone.

Torque, in degrees, is how much the shaft resists twisting. Lower torque tends to feel firmer and more stable; higher torque tends to feel smoother. Kick point, sometimes called bend profile, describes where along its length the shaft bends most. Lower kick points tend toward higher launch, higher kick points toward lower launch. Both are real, and both are tendencies rather than promises, because how a shaft behaves depends on the swing loading it.

How a fitter actually reads the sheet

Order of operations matters. A fitter reads weight first, because it affects everyone. Then flex and bend profile together, as one picture of how the shaft loads. Then torque as a feel refinement, and swing weight as a build detail to get right at assembly. Loft and lie run in parallel as the direction and launch controls on the head side.

What a fitter never does is read one number in isolation. A spec sheet is a system, and the golfer is the missing variable in every row. You can practice on real data anytime: every shaft in our catalog lists its full spec table, weight, torque, and bend profile included, with no decoding required.

The sheet tells you what the club is. It cannot tell you what you need, because you are not on it. That is the job of a fitting, where your delivery, tempo, and contact get measured against those numbers instead of guessed at. Learn the language, then bring your swing in and let the two meet. That is when the table starts making sense.