Shaft Fitting Guide
Everything you need to know about choosing the right golf shaft — explained without marketing language. Flex, weight, torque, and materials: what actually matters, and how to get fitted properly.
- Shaft Flex — What It Actually Means
- Weight — The Variable Most Ignore
- Torque — The Invisible Specification
- Swing Speed Matching
- Transition Timing & Release
- The Fitting Process
1. Shaft Flex — What It Actually Means
Flex is the shaft's resistance to bending during your swing. More flex means the shaft bends more; less flex means it stays stiffer. But here's what the labels don't tell you: flex isn't determined by swing speed alone — it's determined by when you release the club relative to impact.
// L — Lady / Senior Flex
For swing speeds under 85mph. Players with smooth, late transitions who release the club early in the downswing. If you generate less than 85mph driver speed and feel like you're fighting the clubhead through impact, try L-flex.
// A — Amateur / Regular Flex
For swing speeds 85-95mph. Most male recreational golfers fit here. If you're between 85-95mph and have a neutral-to-slight release pattern, regular flex is likely correct. Most men who think they need stiff actually need regular.
// R — Regular Flex
For swing speeds 95-105mph. Competitive amateurs and faster senior players. If you're consistently at 95mph+ and have a balanced transition, R-flex is your starting point. Getting this wrong costs distance regardless of swing speed.
// S — Stiff Flex
For swing speeds 105-115mph. Better players, low handicappers, and power hitters. Stiff flex requires a faster transition and a later release to properly activate the shaft. If you're at 100mph with an early release, S-flex will feel harsh and cost you distance.
// X — Extra Stiff Flex
For swing speeds 115mph+. Tour players and elite amateurs. X-flex is for players who generate very high clubhead speed and need maximum control at impact. Most recreational golfers who play X-flex are doing so based on ego, not data.
// The Label Problem
There's no standardized flex system across manufacturers. A "stiff" shaft in one brand may play closer to a "regular" in another. That's why the only way to know if a flex is correct is to test it with TrackMan — not to read the label.
2. Weight — The Variable Most Ignore
Lighter shafts can increase clubhead speed — but only up to a point. Below a certain weight threshold, the shaft becomes too unstable and you lose control of the face at impact. The right weight is where your strike quality, consistency, and speed are all optimized — not where the club feels lightest. In iron shafts, the practical range is roughly 55g to 130g. In driver shafts, 40g to 85g.
Under 90mph — Lighter iron shafts (65-85g) typically improve contact quality and distance
90-105mph — Mid-weight (85-105g) is the sweet spot for most male golfers
Over 105mph — Heavier shafts (105-130g) improve control and consistency
| Category | Weight Range | Typical Player |
|---|---|---|
| Tour Light | 55-65g irons | Fast transition, prefers feel |
| Standard | 65-95g irons | Most male recreational golfers |
| Tour Heavy | 95-115g irons | Players who want maximum feedback |
| Extreme | 115-130g irons | Tour players, control-focused |
3. Torque — The Invisible Specification
Torque measures how much the shaft twists during the swing. Lower torque means more control but potentially a harsher feel. Higher torque means more feel but less precision. Most golfers don't know their torque spec — and it's one of the highest-impact variables you're not measuring.
// Low Torque (2.5° - 3.5°)
More control, more stable through impact. Better for players who swing fast and need the face held square through a late release. Most tour shafts are in this range. Can feel harsh if your transition isn't matched to it.
// Mid Torque (3.5° - 4.5°)
The broadest range and where most game-improvement shafts sit. A balanced feel that suits a wide range of transition types. If you don't know your torque spec, this is a reasonable default — but it's still a guess.
// High Torque (4.5°+)
More feel, more feedback, more forgiveness on off-center contact. Good for players who want the face to "work" through impact. Some high-launch, high-spin player shafts run high torque intentionally.
The Fitting Process — What to Expect
Transition Timing Measurement
TrackMan measures when in the downswing you reach maximum wrist hinge — this determines your optimal shaft loading profile and flex.
Swing Speed Across Full Bag
Driver, fairway, iron — your speeds differ. We measure all three to determine the weight and flex range that optimizes each club.
Launch Condition Analysis
Ball speed, launch angle, spin rate. We see how your current equipment interacts with your swing — then test alternatives with data.
Flex & Weight Testing
Test across at least 3 flex options and 2 weight options. TrackMan confirms which combination gives you the best launch conditions and dispersion.