Project X LZ Steel Iron Shaft
The Project X LZ Steel Iron Shaft is a premium, tour-proven shaft designed for golfers seeking a mid-trajectory flight with enhanced feel and increased energy transfer. Featuring proprietary Loading Zone Technology, this shaft delivers a unique combination of stability, responsiveness, and distance, making it suitable for a broad range of players, from mid-handicappers to professionals. Its variable wall design provides a smooth yet stable feel, ideal for those transitioning from standard steel shafts or seeking more height and spin than traditional Project X models.
- Loading Zone Technology: Achieves 7% greater energy transfer to the ball through variable wall thicknessstiff butt and tip sections with a softer midsectionresulting in maximum shaft load during the downswing for enhanced distance and feel.
- Progressive Weight Profiles: Available in multiple flexes with weights ranging from 110g (5.0) to 125g (6.5), catering to various swing speeds and player preferences.
- Mid-Launch, Mid-Spin Profile: Delivers a balanced trajectory with slightly higher launch and spin than standard Project X shafts, optimizing ball flight and control.
- Rapid Taper Design: Visible tapered steps from grip to midsection enhance the loading feel, providing a distinct, smooth sensation during the swing.
- Finishes: Available in Chrome or Blackout/Black Onyx for aesthetic customization.
Shaft Specifications:
| Flex |
Weight (g) |
Torque |
Tip Diameter |
Butt Diameter |
Length |
Launch |
Spin |
| 5.0 (Regular) |
110 |
~2.0 |
.355″ |
.600″ |
36.5″40″ |
Mid |
Mid |
| 5.5 (Regular+) |
115 |
~1.9 |
.355″ |
.600″ |
36.5″40″ |
Mid |
Mid |
| 6.0 (Stiff) |
120 |
~1.8 |
.355″ |
.600″ |
36.5″40″ |
Mid |
Mid |
| 6.5 (X-Stiff) |
125 |
~1.7 |
.355″ |
.600″ |
36.5″40″ |
Mid |
Mid |
Club Lengths (Standard, before trimming):
- 3-iron: 40″
- 4-iron: 39.5″
- 5-iron: 39″
- 6-iron: 38.5″
- 7-iron: 38″
- 8-iron: 37.5″
- 9-iron: 37″
- Wedge: 36.5″
Notes on Specs:
- Tip Diameter: .355″ (tapered tip), compatible with most iron heads; requires professional installation.
- Trimming: Butt-trim only to desired length; tip prepped (abraded for steel) per manufacturer guidelines.
- Flex Selection: 5.0 for ~8595 mph 7-iron swing speed, 5.5 for ~90100 mph, 6.0 for ~95105 mph, 6.5 for ~100110+ mph.
Performance Notes:
- Player Profile: Suited for a wide range of golfers, from mid-handicappers to professionals, with moderate to fast swing speeds who seek a balance of distance, control, and feel. Ideal for players needing more height than standard Project X or Dynamic Gold.
- Distance and Forgiveness: Delivers ~510 yards more distance than standard Project X due to enhanced energy transfer; stable tip improves dispersion.
- Feel and Sound: Smooth, responsive feel with a distinct kick in the midsection, less harsh than standard Project X; solid impact sound.
- Launch and Spin: Mid-launch (~2025 with 7-iron) and mid-spin (~5,0006,000 rpm), slightly higher than Project X or Dynamic Gold, ideal for balanced flight.
- Turf Interaction: Stable tip and moderate weight ensure consistent performance from various lies; suitable for most turf conditions.
- User Feedback: Praised for its smooth feel, tight dispersion, and added height; testers note improved smash factor (~1.451.50) and versatility for shot shaping.