Guide
Senior flex vs regular flex
The A flex (senior, also sold as lite or amateur) is not a softer regular. It is a different shaft built for a different swing speed, and it almost always comes lighter. Here is what it changes, the speed where it starts to pay, and every club we cover that ships with it as stock.
What flex is
Flex is how much a shaft bends under the load of a swing. Stock shafts come in five steps: L (ladies), A (senior), R (regular), S (stiff) and X (extra stiff). Makers do not agree on where the lines sit, so one company's regular can bend like another's senior, but inside one maker's stock list the order always holds. The right flex is the one that lets the shaft bend and then unload, snapping the head back to square, at the speed you actually swing. Too stiff and it never fully unloads: the face arrives open and low, the ball flies low and right for a right-hander. Too soft and it unloads early: the face arrives closed and high, the ball flies high and left.
What senior flex changes
Three things, and the shaft's bend is only one of them.
- Bend. The A flex reaches its full bend at a lower load than R, so a slower swing gets the same release a faster swing gets from regular: the face squares, the launch rises, the ball carries.
- Weight. In almost every stock line the A flex comes on a lighter graphite shaft than the regular, typically 50 to 60 grams against 60 to 70 for the regular graphite and 95 to 120 for steel. A lighter club can be swung faster for the same effort, and speed is distance. Of the 56 clubs in the table with a stock A flex, 53 list a graphite shaft; steel senior shafts are rare.
- Launch. Softer and lighter together launch higher. That matters because a slow swing's biggest distance loss is carry: a ball that lands short and runs is a ball that fell out of the sky. The senior build is a launch build first.
What it does not change is the head. A senior version of a game improvement iron has the same head, the same offset, the same sole; only the shaft, and sometimes the grip and the lofts, differ. That is why the makers sell it as a flex option on the same product rather than as a different club.
The speed where it starts to help
Age is a proxy; speed is the measurement. The usual crossovers, which every maker states a little differently:
- Driver swing under about 75 miles per hour, or a 7-iron carrying under about 120 yards: ladies (L) flex.
- Driver 75 to about 85 miles per hour, 7-iron carry 120 to about 140 yards: senior (A) flex.
- Driver 85 to 95, 7-iron 140 to 160: regular.
- Over 95 with the driver: stiff.
Each shaft maker draws these lines a little differently; the shaft flex chart sets their own charts side by side.
Most golfers overestimate their speed and buy a flex too stiff, then wonder why the ball goes right. If you can get on a launch monitor at a shop, one minute of driver swings settles it; if not, the carry distance of your 7-iron on a flat hole is a good enough proxy. A 65-year-old who still carries a 7-iron 150 yards belongs in regular.
Weight matters as much as flex
Because the senior shaft comes light, the whole club comes light, and for many slower swings the weight does more than the bend. A 55 gram graphite shaft in an iron is about half the weight of the steel most regular sets are sold with. If you have lost distance and the ball flight is fine, the first thing to try is a lighter shaft in your current flex; if the flight is low and right as well, go to the A flex with the light shaft. Several makers sell a lightweight build of a whole set (lighter head, lighter shaft, lighter grip) aimed at exactly this; the cues column on the senior clubs page names them. Steel vs graphite shafts lists every forgiving iron set's stock shafts of each kind.
What it feels like, and the two wrong reasons
A senior shaft in the right hands feels like the club is doing more of the work: you feel the head load and release, the ball comes off higher, and you swing easier because you can. In the wrong hands, a fast swinger with an A flex, it feels loose and whippy, the ball starts left and the distance control goes.
Two reasons not to buy senior flex: because of your age, which is not a measurement, and because a club felt "easy" in a shop swing, which is usually the lighter weight talking, not the flex. Two reasons to buy it: your driver speed is under about 85 miles per hour, or your good shots fly low and right and you have not changed your swing.
A five-minute test with clubs you already own
Take your 7-iron to a flat hole or a range with real yardages. Hit ten balls. Note the carry of the six best (throw out the two worst and the two flukes) and the direction. Under 140 yards, or a consistent low-right flight with a decent strike, and the A flex is worth a fitting; over 150 and it is not. If you own a hybrid or a wood in a softer flex than your irons, hit both back to back: the club that launches higher and finishes straighter is telling you where your flex sits.
Every club in the table with a stock senior flex
56 of the 111 clubs with a stock flex list ship with an A flex as a stock option; 31 ship in regular and stiff only, and 7 Callaway clubs ship in Light (R2 on its newest clubs), the flex Callaway's buying guide calls senior. By type:
Iron sets with a stock A flex (22)
| Club | Stock flexes | Graphite shafts | Price |
|---|---|---|---|
| Tour Edge Hot Launch C524 | L · A · R · S | Aldila Ascent PL Graphite | $559.99 at Tour Edge, 7 irons, checked 2 Nov |
| Tour Edge Hot Launch Max | A · R · S | Aldila Ascent 55A, Aldila Ascent 55R, Aldila Ascent 60S | $599.99 at Tour Edge, 7 irons, checked 2 Nov |
| Tour Edge Hot Launch Max D Ironwoods | A · R · S | Aldila Ascent 55A, Aldila Ascent 55R, Aldila Ascent 60S | $599.99 at Tour Edge, 7 irons, checked 2 Nov |
| PXG Wildcat | L · A · R · S · X | not published | $749.95 at PXG, 5 clubs (7-iron to sand wedge) at $149.99 each, checked 2 Nov |
| PXG Women's Wildcat | L · A · R · S · X | not published | $749.95 at PXG, 5 clubs (7-iron to sand wedge) at $149.99 each, checked 2 Nov |
| Cobra KING MAX | A · R · S · X | KBS PGI 85, KBS PGI 75, KBS PGI 65 | $999 at Cobra, 7 irons, checked 2 Nov |
| PING G440 | A · R · S · X | PING ALTA CB Blue, PING ALTA Quick | $999 at Golf Discount, 7 irons (4-PW), checked 2 Nov |
| Srixon ZXiR | A · R · S | KBS PGI 80 (stock), KBS PGI 60 (stock) | $1,099.98 at Srixon, 7 irons at $157.14 each, checked 2 Nov |
| Srixon ZXiR HL | A · R · S | KBS MAX 55 (stock), KBS MAX 50 (stock) | $1,099.98 at Srixon, 7 irons at $157.14 each, checked 2 Nov |
| TaylorMade Qi Max | A · R · S | REAX by KBS 75 / 65 / 55 | $1,099.99 at TaylorMade, 7 irons, checked 2 Nov |
| TaylorMade Qi Max HL | L · A · R · S | REAX HL 50 by KBS, REAX HL 45 by KBS | $1,099.99 at TaylorMade, 7 irons, checked 2 Nov |
| TaylorMade P790 | A · R · S · X | Mitsubishi MMT 75, Mitsubishi MMT 65, Mitsubishi MMT 55 | $1,199.99 at TaylorMade, 7 irons, checked 2 Nov |
| Callaway Apex Ai300 | A · R · S | UST Mamiya HDC Recoil Dart 70 | $1,260 at Golf Discount, 7 irons (4-PW), checked 2 Nov |
| PING G740 | A · R · S · X | PING ALTA CB Blue, PING ALTA Quick, UST Recoil Dart | $1,299.99 at PGA TOUR Superstore, 7 irons (5-9, PW, UW), checked 2 Nov |
| PING G Le4 | PING's own lightweight flexes: Ultra Lite or Lite | PING ALTA Le i (irons), PING ALTA Le H (hybrids) | $1,299.99 at PGA TOUR Superstore, 7 irons (6-9, PW, UW, SW), checked 2 Nov |
| Srixon ZXi4 | A · R · S | KBS TGI Tour Graphite Iron (stock), UST Mamiya Recoil Dart 65 (stock) | $1,399.93 at Srixon, 7 irons at $199.99 each, checked 2 Nov |
| Callaway Apex Ai200 | A · R · S | UST Mamiya HDC Recoil Dart 80 | $1,449 at Golf Discount, 7 irons (4-PW), checked 2 Nov |
| PING i540 | A · R · S · X | PING ALTA CB Blue, PING ALTA Quick, UST Recoil Dart | $1,499.75 at Golf Discount, 7 irons (4-PW), checked 2 Nov |
| XXIO 14 | A · R · S | XXIO MP1400 | $1,679.93 at XXIO, 7 irons at $239.99 each, checked 2 Nov |
| XXIO 14 Ladies | L · A | XXIO MP-1400L Carbon, Speeder NX DST for XXIO W (custom LR flex) | $1,679.93 at XXIO, 7 irons at $239.99 each, checked 2 Nov |
| XXIO Prime | A · R | XXIO Prime SP-1300 | $2,274.93 at XXIO, 7 irons at $324.99 each, checked 2 Nov |
| Cleveland HALO XL Full-Face | A (graphite only), R, S | UST Helium Nanocore 60 | Price not published |
Drivers with a stock A flex (15)
| Club | Stock flexes | Graphite shafts | Price |
|---|---|---|---|
| Tour Edge Hot Launch Max D | A · R · S | Aldila Ascent | $299.99 at Tour Edge, checked 2 Nov |
| Tour Edge Hot Launch Max | A · R · S | Aldila Ascent | $299.99 at Tour Edge, checked 2 Nov |
| Cobra OPTM MAX-K | A · R · S · X | MCA Kai'li Dark Waves Blue 60, MCA Kai'li Dark Waves White 60, MCA Kai'li Dark Waves Red 50, Project X Denali Blue 60 Frost CB 60 | $399 at Cobra, checked 2 Nov |
| Cobra OPTM MAX-D | A · R · S · X | MCA Kai'li Dark Waves Red 50, MCA Vanquish 40 | $399 at Cobra, checked 2 Nov |
| Cobra OPTM X | A · R · S · X | MCA Kai'li Dark Waves White 60, MCA Kai'li Dark Waves Blue 60, MCA Kai'li Dark Waves Red 50, Project X Denali Black Frost 60, Project X Denali Blue 60 Frost CB 60 | $399 at Cobra, checked 2 Nov |
| Srixon ZXi MAX | A · R · S | Mitsubishi Kai'li Dark Waves Red CB 50 (stock in the configurator), Project X Denali Red 5 (shaft published in the Specs table) | $399.99 at Srixon, checked 2 Nov |
| PING G440 MAX | A · R · S · X | PING ALTA CB Blue 50, PING Tour 2.0 Chrome 65, PING Tour 2.0 Black 65, Mitsubishi Tensei 1K Black 65, Project X Denali Red 50, Project X Denali Red 60, PING ALTA Quick (HL build) | $447 at Golf Discount, checked 2 Nov |
| PING G440 SFT | A · R · S · X | PING ALTA CB Blue 50, PING Tour 2.0 Black 65, PING Tour 2.0 Chrome 65, Mitsubishi Tensei 1K Black 65, Project X Denali Red 50, Project X Denali Red 60, PING ALTA Quick (HL build) | $447 at Golf Discount, checked 2 Nov |
| Titleist GT1 | L · A · R · S · X | Fujikura Air Speeder Next Gen (35/40), Mitsubishi Tensei 1K Blue (55/65/75), Project X Denali Red (40/50/60), Graphite Design Tour AD DI (premium), Graphite Design Tour AD UB (premium), Graphite Design Tour AD VF (premium) | $449 at Titleist, checked 16 Oct |
| Wilson DYNAPWR Max+ | A · R · S | UST Mamiya Lin-Q Power-Core Blue | $499.99 at Wilson, checked 2 Nov |
| PING G440 K | A · R · S · X | PING ALTA CB Blue 50, PING Tour 2.0 Chrome 65, PING Tour 2.0 Black 65, Mitsubishi Tensei 1K Black 65, Project X Denali Red 50, Project X Denali Red 60, PING ALTA Quick (HL build) | $647 at Golf Discount, checked 2 Nov |
| Srixon ZXi RKT MAX | A · R · S | Mitsubishi Kai'li Dark Waves Red CB 50 | $649.99 at Srixon, checked 2 Nov |
| TaylorMade Qi4D Max | A · R · S · X | Mitsubishi REAX 50 High Rotation Red, Mitsubishi REAX 50 Mid Rotation Blue, Mitsubishi REAX 60 Low Rotation White | $649.99 at TaylorMade, checked 2 Nov |
| TaylorMade Qi4D | L · A · R · S · X | Mitsubishi REAX 50 High Rotation Red, Mitsubishi REAX 50 Mid Rotation Blue, Mitsubishi REAX 60 Low Rotation White, Mitsubishi REAX 40 Mid Rotation Blue | $649.99 at TaylorMade, checked 2 Nov |
| Titleist GTS2 | A · R · S · X | Mitsubishi Tensei 1K White RIP (65/75/85), Mitsubishi Tensei 1K Blue RIP (55/65/75), Mitsubishi Tensei 1K Red RIP (45/55/65), Project X Titan Black (60/70/80), Graphite Design Tour AD DI (premium), Graphite Design Tour AD VF (premium), Graphite Design Tour AD FI (premium) | $699 at Golf Discount, checked 2 Nov |
Fairway woods with a stock A flex (7)
| Club | Stock flexes | Graphite shafts | Price |
|---|---|---|---|
| Tour Edge Hot Launch Max D | A · R · S | Aldila Ascent | $179.99 at Tour Edge, checked 2 Nov |
| Cobra OPTM MAX | A · R · S | MCA Kai'li Dark Waves Red 50 | $269 at Cobra, checked 2 Nov |
| PING G440 MAX | A · R · S · X | PING ALTA CB Blue 65, PING Tour 2.0 Chrome 65, PING Tour 2.0 Black 65, PING Tour 2.0 Chrome 75, PING Tour 2.0 Black 75, Mitsubishi Tensei 1K Black 75, Project X Denali Red 60, Project X Denali Red 70, PING ALTA Quick (HL build) | $297 at Golf Discount, checked 2 Nov |
| PING G440 SFT | A · R · S · X | PING ALTA CB Blue 65, PING Tour 2.0 Chrome 65, PING Tour 2.0 Black 65, PING Tour 2.0 Chrome 75, PING Tour 2.0 Black 75, Mitsubishi Tensei 1K Black 75, Project X Denali Red 60, Project X Denali Red 70, PING ALTA Quick (HL build) | $297 at Golf Discount, checked 2 Nov |
| TaylorMade Qi4D | L · A · R · S · X | Mitsubishi REAX 65 FW, Mitsubishi REAX 55 FW, Mitsubishi REAX 40 FW (L flex) | $379.99 at TaylorMade, checked 2 Nov |
| TaylorMade Qi4D Max | L · A · R · S | Mitsubishi REAX 55 FW, Mitsubishi REAX 40 FW (L flex) | $379.99 at TaylorMade, checked 2 Nov |
| Titleist GTS2 | A · R · S · X | Mitsubishi Tensei 1K White RIP, Mitsubishi Tensei 1K Blue RIP, Mitsubishi Tensei 1K Red RIP, Project X Titan Black, Graphite Design Tour AD DI (premium), Graphite Design Tour AD VF (premium), Graphite Design Tour AD FI (premium) | $399 at Golf Discount, checked 2 Nov |
Hybrids with a stock A flex (6)
| Club | Stock flexes | Graphite shafts | Price |
|---|---|---|---|
| Tour Edge Hot Launch Max D | A · R · S | Aldila Ascent | $159.99 at Tour Edge, checked 2 Nov |
| Cobra OPTM | A · R · S | KBS PGH 85 (S), KBS PGH 75 (R), KBS PGH 65 (A) | $249 at Cobra, checked 2 Nov |
| PING G440 | A · R · S · X | PING ALTA CB Blue 70, PING Tour 2.0 Black 90, PING Tour 2.0 Chrome 85, Mitsubishi Tensei 1K Black 85, Project X Denali Red 70, Project X Denali Red 80, PING ALTA Quick (HL build) | $267 at Golf Discount, checked 2 Nov |
| TaylorMade Qi4D Max Rescue | A · R · S | REAX HL 50 by KBS | $299.99 at TaylorMade, checked 2 Nov |
| TaylorMade Qi4D Rescue | A · R · S · X | KBS REAX 75, KBS REAX 65, KBS REAX 55, Mitsubishi REAX 85 (X flex) | $299.99 at TaylorMade, checked 2 Nov |
| Titleist GT2 | A · R · S · X | Mitsubishi Tensei 1K Blue HY (65/75/85), Mitsubishi Tensei 1K Black HY (85/95), Project X HZRDUS Black 5G HY (80/90), Project X DENALI Red HY (50/60/70), Graphite Design Tour AD DI HY (premium), Graphite Design Tour AD VF HY (premium) | $329 at Golf Discount, checked 2 Nov |
Complete sets with a stock A flex (5)
| Club | Stock flexes | Graphite shafts | Price |
|---|---|---|---|
| Wilson Profile Senior Complete Set with Cart Bag | A | Wilson senior-flex graphite (all clubs) | $549.99 at Wilson, checked 2 Nov |
| Tour Edge TE-200 Complete Senior Set | A | TE-200 stock A-flex graphite (all clubs) | $599.99 at Tour Edge, checked 2 Nov |
| Tour Edge TE-300 Complete Senior Set | A | not published | $799.99 at Tour Edge, checked 2 Nov |
| TaylorMade RBZ Complete Set | A · R · S | RBZ Driver & Fairway 55g (A, R, S), RBZ Irons & Rescue 65g (A, R, S) | $1,399.99 at TaylorMade, checked 2 Nov |
| Cobra AIR-X Complete Set | A · R | AIR-X stock graphite, Lite and Regular | $1,499 at Cobra, checked 2 Nov |
Ladies flex is the same idea one step further
The L flex is softer and lighter again than the A, built for driver speeds under about 75 miles per hour, and it is not only for women: a slow-swinging senior man is often better fitted in L than in A, and a fast-swinging woman in regular. 26 clubs in the table ship with an L flex as stock. The women's lines add a shorter standard length and a lighter grip on top of the shaft; the women's page lists both kinds.