Description
FREEFLEX Instinct 1 Iron Shafts
The FREEFLEX Instinct 1 Iron Shaft lineup is engineered for total iron set optimization — blending progressive flex profiles and tailored performance by iron type. With dedicated specs for long irons (4–6), mid irons (7–9), and scoring irons (PW–GW–SW), the Instinct 1 delivers precise flight control, optimal launch, and superb feel across your full set.
Each shaft features a 39" length and .370" parallel tip — no tipping required for standard feel. For players with faster swing speeds (90–100 mph), tip trimming is recommended for a firmer response. Whether you build a full set with uniform specs or mix profiles to enhance forgiveness in your long irons, the Instinct 1 system gives you unmatched custom control.
- 39" total uncut length – no tipping required for standard installation
- .370" parallel tip – fits most modern irons and wedges
- Progressive flex and weight – lighter/softer in long irons, firmer in short
- 3 color-coded options – tailored for long, mid, and scoring iron builds
- Ideal for players between 80–100 mph driver swing speed
- Choose full-set uniformity or mix models for targeted iron control
Need help selecting the right Instinct profile for your iron set? Message us anytime — we’re happy to help.
IMPORTANT Shipping Details
- Custom orders require 3–5 business days before shipping
- Even expedited shipping follows standard build timelines
- We build each club with tour-level attention to detail
Need it built?
Add all components (shaft, head, grip) to your cart and message us at checkout with your build specs — we’ll assemble your club(s) free of charge. Please allow 3–5 business days for custom builds.
FREEFLEX Instinct 1 Shaft Spec Sheet
| Model | Weight | Tip OD | Torque | CPM | Kick |
| INSTINCT 456 | DL–50 | 0.37 | 5.5 | 207 | MID |
| INSTINCT 789 | DL–55 | 0.37 | 4.5 | 236 | MID |
| INSTINCT PGS | DL–60 | 0.37 | 4.5 | 247 | MID |
