Shaft Flex, Length, Lie and Loft for Used Clubs

A used club is a head you cannot change attached to specs you sometimes can. Lie and loft on most irons can be bent by a shop, adjustable woods can be reset with a wrench, and shafts can be swapped. Flex and length are the specs most likely to be wrong for you and the most expensive to fix, so they deserve the most attention before you buy.

Choosing flex: what the published guidance says

Flex charts tie shaft stiffness to swing speed, but the published rules of thumb do not line up exactly, so treat them as starting points rather than answers.

• Golf Monthly: most casual players fall into regular or stiff; golfers with a smoother tempo and driver speeds under about 75 mph will likely do better with a senior flex; golfers swinging above about 105 mph generally need extra stiff.
• Wikipedia's summary of common practice: senior or A flex for roughly 70 to 79 mph, regular for roughly 80 to 94 mph, stiff and extra stiff for players above about 100 mph, with some makers offering a stiff-regular or firm flex for the 90 to 100 mph range.
• Tempo and transition matter as well as speed. Ping's Co-Pilot fitting tool recommends shafts based on transition (smooth, neutral or abrupt) as well as swing speed or carry distance.

Two cautions. First, flex labels are not standardized across brands, so one maker's stiff can play differently from another's. Second, Golf Monthly's fitting editor argues that the launch and spin labels printed on shafts are a poor guide for many players and that the shaft that delivers the center of the face most consistently is the one to keep. If you are between flexes, the shaft model and weight you already like are better guides than the letter.

Length: the spec that changes everything else

Length affects where you strike the face, how upright the club sits and how heavy the head feels. GOLF.com notes a 3-wood is usually around 43 inches while drivers average around 45 inches. Ping lists its G430 Max driver at 45 3/4 inches with its standard shaft and offers a 46-inch high-launch build aimed at slower swingers. Standard is model-specific, so compare a listing's length against that model's published standard, not against another club.

Shortening or lengthening a club is a shop job, but it is not neutral: it changes swingweight and, per Golf Monthly's rule of thumb, roughly a degree of lie for every half inch.

Lie angle: why direction depends on it

Lie is the angle between the shaft and the sole. Golf Monthly explains that when the toe or heel sits up at impact, the face points left or right of where the leading edge appears to aim, an effect it calls face plane tilt that grows with loft. That is why wedges are the most sensitive clubs to lie. A wrong lie can also make the heel or toe dig first and twist the face.

• A simple home check from Golf Monthly: draw a vertical line on a ball, hit it, and look at the mark on the face. A vertical line suggests the lie is about right; a tilted line suggests seeing a fitter.
• GOLF.com notes that lie and loft do not drift in storage, but hitting repeatedly off mats over concrete can bend iron heads.
• Most forged and many cast irons can be bent; Callaway, for one, offers lie and length adjustment as a paid service through authorized retailers.

Loft: same number, different club

The number on the sole is not a loft. Ping sells its G430 irons in standard, Power Spec and Retro Spec lofts: its 7-iron is listed at 29 degrees standard, 27.5 in Power Spec and 31 in Retro Spec. A used 7-iron could be any of those. If you are adding a single iron or wedge to an existing set, ask the seller for the loft stamped on the club or measured, and check that it gaps sensibly with your other clubs.

Adjustable sleeves: what they can and cannot change

Adjustable hosels on drivers, fairways and hybrids rotate the head on the shaft to change loft, lie and the face angle you see at address. Golf Monthly's breakdown: TaylorMade uses a 12-position sleeve with a 2-degree range up or down, where lowering loft opens the face at address and the standard setting is the flattest lie; Ping's 8-position sleeve adjusts loft by up to 1.5 degrees and has a flat setting up to 3 degrees flatter; Callaway's two-cog design gives four loft options and two lie settings; Titleist's sleeve-and-ring system gives 16 settings in 0.75-degree steps; and Cobra's FutureFit33 system offers 33 settings. On a used TaylorMade Stealth 2, Titleist TSR2 or Ping G430 Max driver, the markings on the sleeve tell you which setting the seller left it in, so ask for a photo. Our headcovers, hosels and wrenches guide covers compatibility and tools.

Adjustability has limits. A TaylorMade tour rep told Golf Monthly that its sleeves could only get a fairway wood to 57 degrees of lie for a player who needed 56, which is why some tour players prefer bonded hosels that can be bent further. For most golfers buying used, though, GOLF.com's advice is that an adjustable wood is the easiest way to get closer to a fit without a fitting.

Stock vs aftermarket, tipped and cut

A stock shaft is the one a manufacturer installs off the rack; an aftermarket shaft is bought separately. GOLF.com warns that some stock shafts are made-for versions that share a name with a premium aftermarket model, so the label alone does not tell you which you have.

Tipping means trimming the shaft at the clubhead end before installation. GOLF.com explains that fairway wood shafts are typically trimmed more from the tip than driver shafts, which stiffens them to suit a heavier head, and that some makers publish tip-trim instructions; its example is Mitsubishi recommending 0.75 inch of tipping for a Diamana RB going into a 5-wood. Trimming from the butt end instead mainly shortens the club. True Temper publishes trimming guides on its shaft spec pages. If a listing says "tipped" or "cut down", ask how much was removed and from which end, because it changes how the shaft plays and whether it can go back to full length.

Swingweight basics

Swingweight is a balance measurement written as a letter and number, such as D2; a higher reading means the head feels heavier. Ping lists its G430 Max driver at D3 and its G430 irons at D0 through the 8-iron, rising toward the wedges, and notes that graphite-shafted irons run 2 to 3 points lighter. Anything that changes length, head weight or grip weight moves it. GOLF.com notes that a shorter shaft lowers swingweight, and Golf Monthly notes lead tape on the head raises it. A cut-down club with a heavy grip can feel noticeably light, which is a common reason a bargain club feels wrong.

When to get fitted before buying used

• If you do not know your flex, length and lie, GOLF.com recommends at least talking to a PGA professional or fitter to get a baseline before shopping, even if the answer is standard.
• If you are buying irons or wedges, where lie and loft matter most and adjustable sleeves do not exist.
• If your swing or strength has changed. A Fairway Jockey executive told GOLF.com that shaft flex and lie are tuned to a swing at a point in time and the fit can degrade as the golfer changes.
• If you are considering an expensive aftermarket shaft. Golf Monthly's view is that there is no real way to know the right shaft without an expert.
• If a fitter recommends specs, ask why. Golf Monthly's account of club-fitter practices suggests making sure you are shown options and that the reasons for the final specs make sense.