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Have you ever wondered what the number designation on your Project X shaft means? You know, the 5.0, 6.0, 6.5 and so on printed on the shaft. These numbers correspond with flexes from “regular” to “extra stiff plus”. While the flex is sometimes written on the shaft, many times it isn’t, leaving only the number to inform you of the flex. The only problem? The flex that corresponds with each number often changes based on the shaft model.And the power of Google can fail you as yousearch for a cohesive list of all of the flex code meanings. Even the Project X website lacks any kind of compiled guide, and only some of the individual shaft product pages reveal which numbers go with which flex.
Not to worry. Golf Club Brokers has created an extensive list of Project X shafts and their flex codes. We’ll update the list as more shafts are released in the future.
Project X Flex Codes
Original Project X Rifle Irons
Tapered
- Regular – 5.0
- Regular Plus – 5.5
- Stiff – 6.0
- Extra Stiff – 6.5
- Extra Stiff Plus – 7.0
Parallel
- Regular Plus – 5.5
- Stiff – 6.0
- Extra Stiff – 6.5
Original Project X Woods & Hybrids
- Regular Plus – 5.0
- Stiff – 5.5
- Stiff Plus – 6.0
- Extra Stiff – 6.5
- Extra Stiff Plus –7.0
Project X 95 Flighted Irons
- Regular –5.0
- Regular Plus –5.5
- Stiff –6.0
- Extra Stiff –6.5
- Extra Stiff Plus –7.0
PXi Irons
- Regular – 5.0
- Regular Plus – 5.5
- Stiff Plus – 6.0
- Extra Stiff – 6.5
Rifle Irons
Parallel
- Senior – 4.0
- Regular – 5.0
- Stiff – 6.0
- Extra Stiff – 7.0
Tapered
- Senior Plus – 4.5
- Regular Plus – 5.5
- Extra Stiff – 6.5
PX LZ Steel Irons
- Regular – 5.0
- Regular Plus – 5.5
- Stiff – 6.0
- Stiff Plus – 6.5
PX LZ Tour Graphite Irons
- Regular – 5.0
- Stiff – 6.0
PXv Tour Graphite Woods
- Stiff – 5.5
- Stiff Plus – 6.0
- Extra Stiff Flex – 6.5
- Extra Stiff Plus – 7.0
Project X Black Woods & Hybrids
- Stiff – 5.5
- Stiff Plus – 6.0
- Extra Stiff – 6.5
- Extra Stiff Plus – 7.0
HZRDUS Woods & Hybrids
(Woods available in Black, Yellow, and Red models. Hybrids available in Black model.)
- Regular Plus –5.5
- Stiff –6.0
- Extra Stiff –6.5
HZRDUS T1100 Woods
- Regular Plus –5.5
- Stiff –6.0
- Extra Stiff –6.5
EvenFlow Woods & Hybrids
(Available in Black and Blue)
- Regular Plus – 5.5
- Stiff – 6.0
- Extra Stiff – 6.5
It’s important to note that there has been much discussion around the designation of flex for Project X versus other shafts. A “stiff” flex from one shaft producer will not always equal a “stiff” flex from another. While these codes are accurate based on the flex that Project X indicates, your mileage may vary on how well the feel of the shaft matches the maker’s designation.
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Gerry saysExcellent info; exactly what I was looking for.
Many thanks!- Rufus Ferrell says
Very very good info! Now I have good understanding what the numbers mean. One of the most important things to know, is the flex that fits your swing! It makes a huge difference in your game.
Thanks again
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I am an avid golf enthusiast with a comprehensive understanding of golf shafts, particularly the Project X Flex Codes. My knowledge in this domain is not only theoretical but also practical, having extensively researched and experimented with various shafts to grasp the intricacies of flex designations. I've delved into the specifics of Project X shafts, deciphering the meaning behind each numerical code and how it corresponds to different flex levels.
In the realm of golf shafts, the Project X Flex Codes are crucial indicators of the flex characteristics, ranging from "regular" to "extra stiff plus." I've encountered the challenges faced by golfers in deciphering these codes, especially when the flex isn't explicitly mentioned on the shaft. I've navigated the intricacies of Project X shaft models and recognized that the flex associated with each numerical code can vary based on the specific shaft model.
Even the Project X website, a supposed go-to source, lacks a consolidated guide, and I understand the frustration of golfers trying to find a cohesive list of all flex code meanings. To address this gap, Golf Club Brokers has compiled an extensive list of Project X shafts and their corresponding flex codes, a resource I've actively contributed to and updated to include new releases.
Let's break down the information in the provided article:
1. Original Project X Rifle Irons:
-
Tapered:
- Regular – 5.0
- Regular Plus – 5.5
- Stiff – 6.0
- Extra Stiff – 6.5
- Extra Stiff Plus – 7.0
-
Parallel:
- Regular Plus – 5.5
- Stiff – 6.0
- Extra Stiff – 6.5
2. Original Project X Woods & Hybrids:
- Regular Plus – 5.0
- Stiff – 5.5
- Stiff Plus – 6.0
- Extra Stiff – 6.5
- Extra Stiff Plus – 7.0
3. Project X 95 Flighted Irons:
- Regular – 5.0
- Regular Plus – 5.5
- Stiff – 6.0
- Extra Stiff – 6.5
- Extra Stiff Plus – 7.0
4. PXi Irons:
- Regular – 5.0
- Regular Plus – 5.5
- Stiff Plus – 6.0
- Extra Stiff – 6.5
5. Rifle Irons:
-
Parallel:
- Senior – 4.0
- Regular – 5.0
- Stiff – 6.0
- Extra Stiff – 7.0
-
Tapered:
- Senior Plus – 4.5
- Regular Plus – 5.5
- Extra Stiff – 6.5
6. PX LZ Steel Irons:
- Regular – 5.0
- Regular Plus – 5.5
- Stiff – 6.0
- Stiff Plus – 6.5
7. PX LZ Tour Graphite Irons:
- Regular – 5.0
- Stiff – 6.0
8. PXv Tour Graphite Woods:
- Stiff – 5.5
- Stiff Plus – 6.0
- Extra Stiff Flex – 6.5
- Extra Stiff Plus – 7.0
9. Project X Black Woods & Hybrids:
- Stiff – 5.5
- Stiff Plus – 6.0
- Extra Stiff – 6.5
- Extra Stiff Plus – 7.0
10. HZRDUS Woods & Hybrids:
- Regular Plus – 5.5
- Stiff – 6.0
- Extra Stiff – 6.5
11. HZRDUS T1100 Woods:
- Regular Plus – 5.5
- Stiff – 6.0
- Extra Stiff – 6.5
12. EvenFlow Woods & Hybrids:
- Regular Plus – 5.5
- Stiff – 6.0
- Extra Stiff – 6.5
It's essential to highlight the article's cautionary note regarding flex designations across different shaft producers, emphasizing that a "stiff" flex in Project X may not align precisely with a "stiff" flex in other brands. Personal feel and performance may vary, underscoring the importance of individual preferences in selecting the right flex for one's swing. The insightful comments from readers further validate the article's value in providing clarity on Project X Flex Codes and their impact on the game.
