Updated
A club that feels heavy in your hands does not necessarily have the heaviest head. Head mass, total club mass and swingweight describe different things, and the shaft, length and grip affect the finished club too. Before ordering a replacement weight or adding material to a head, decide which measurement or playing sensation you are trying to change and establish the current build.
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Guide checked: 8 September 2026. This guide uses the linked manufacturer and retailer information. We have not carried out hands-on product testing. Specifications describe the identified models; confirm the selected variant before ordering.
| Term | What it describes | Typical buying mistake |
|---|---|---|
| Head weight | Mass of the head or identified assembly | Comparing bare and assembled heads |
| Total weight | Mass of the complete club | Assuming it describes head-heavy feel alone |
| Swingweight | A balance measurement on a specific scale | Treating a letter-number value as grams |
Table of Contents
Start with the complete club
The GolfWorks equipment glossary describes a swingweight scale as a golf-specific balance measuring system. That is different from putting a club on an ordinary scale to read its total mass. Two clubs can have similar total weights while distributing that mass differently. Conversely, a similar swingweight reading does not prove that two clubs will feel identical during a swing.
Write down the playing length, shaft, grip and any removable head-weight specification before comparing clubs. Clarify whether a quoted head weight includes the adapter, screw or other fittings. A few missing components can make a supposed like-for-like comparison misleading. For a used club, ask what has been altered since its original build rather than assuming the manufacturer's standard figures still apply.
Know what a replacement weight is intended to change
Titleist's SureFit guide provides model-specific weight information and discusses head-weight preference as part of fitting. The practical point is that weight options belong to an identified system. A gram value alone does not establish whether a part fits, whether its screw is correct or where its mass will sit within a different head.
Use only a part confirmed for the exact club and follow the manufacturer's installation instructions. A weight advertised for a similar product family is not enough evidence of compatibility. Keep the original component labelled so the baseline can be restored. If the head has a damaged thread, a screw that will not seat or an uncertain repair, arrange an inspection instead of forcing an adjustment.
Change one variable during a trial
A change in head weight may alter how a club feels to you, but the useful question is how you deliver the finished club. Compare contact and shot pattern as well as your immediate impression. A head that feels easier to sense during a rehearsal is encouraging only if that sensation supports the shots you want. Keep an ordinary range of swings in the trial.
Avoid changing the grip, shaft length and head weight together unless a fitter is deliberately building a new specification. Otherwise you lose the ability to identify which change produced the result. Start from a recorded baseline, test one planned variation and return to the baseline when needed. Do not interpret a single longer shot as proof that an extra-heavy or extra-light head is optimal.
Consider how repairs alter the balance
Regripping and reshafting can change more than appearance. A grip with a different mass, a change in playing length or a different shaft balance profile can alter the completed club's measurements. Tell the repairer which aspects of the old club you want to preserve. Ask for the final specification rather than requesting a particular swingweight number without the rest of the context.
For an iron set, look at consistency through the clubs rather than trying to make every head weigh the same. The clubs have different lengths and roles. If one iron suddenly feels unlike its neighbours, inspect its actual components and any past repair before adding weight experimentally. A professional comparison can identify a mismatched grip or shaft that a head-weight purchase would not address.
Make adjustments serve a specific purpose
Before buying parts, be able to finish the sentence: I want to change this because a controlled trial showed this result. That may mean a more repeatable contact pattern or a preferred sense of balance. It should not mean copying an unknown tour player's number. Their complete build and delivery may differ from yours in several important ways.
The custom fitting guide explains how to prepare an equipment appointment. Bring the club in its current condition and a record of previous changes. Head-weight adjustment can be a useful fitting tool when the parts, baseline and result are understood; it becomes guesswork when grams are treated as a shortcut to extra distance or automatic control.
Sources and specifications
Distinguish head mass from the feel of the whole club
Head mass, total club mass and swingweight describe different things. Ask a fitter to assess the complete club and your actual strikes before changing weights. Use only compatible manufacturer-approved weights and the model’s instructions.