Speed
Speed sets the range
Driver and iron speed help narrow flex and weight, but they should not make the decision alone.
Shaft recommendations
Golf shaft recommendations.
ClubTally uses club speed, tempo, launch, spin, player goals, and actual shaft weight options to recommend a specific flex and starting weight for drivers, fairways, hybrids, irons, and wedges.
Why it matters
89 mph driver speed is not one automatic flex.
Driver speed matters, but shaft flex should also consider tempo, launch, spin, strike, miss tendency, and available shaft weights. ClubTally treats flex as a recommendation, not a generic label.
Tempo
Tempo changes feel
A smooth 89 mph player and a hard-transition 89 mph player may need very different shaft profiles.
Launch and spin
Ball flight confirms fit
The right shaft should support the launch window without creating spin that floats, falls, or over-curves.
Strike and miss
Pattern matters
Heel, toe, low, high, left, and right misses can change whether stability, weight, or profile is the first test.
Why shaft weight matters as much as flex.
Two shafts can both be stiff flex and play completely different if one is 50 grams and the other is 75 grams. ClubTally ranks shaft options by both flex and realistic weight window, then checks whether the result makes sense for the rest of the bag.
Example
Same speed, different shaft tests
GolferSpeedTempoFlightStarting test
Player A89 mphSmoothMid launch / playable spin50-60g regular or firm-regular test
Player B89 mphAggressiveHigh spin / right miss60-70g stiff-stable test
Player C89 mphLate releaseLow launch / low spinMid-launch profile before chasing stiffer flex
ClubTally looks for the shaft window, not just the label.
The point is not to tell every golfer to buy one shaft. The point is to show the first realistic test window and the reasons behind it, so the golfer can walk into a purchase or fitting with a cleaner starting point.
DriverSpeed, launch, spin, attack angle, strike, and miss tendency
Fairway woodsTurf delivery, launch need, shaft weight step, and gapping
HybridsIron replacement gap, launch height, left/right tendency, and stopping power
IronsCarry, spin, descent, handicap, strike, lie need, and shaft profile
WedgesIron shaft relationship, wedge tempo, launch control, and short-game spin
Start with your numbers
Get a shaft recommendation tied to your swing, not a generic chart.
Create a free account, run your first fit, and see how ClubTally ranks shaft flex, weight, head style, golf ball, and next test windows from your launch monitor data.