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Project X Catalyst Graphite Iron Shaft - 0.370" Parallel Tip

$44.99 USD

Free Shipping with $99+ US Orders*

Catalyst 40 / 4.0 Flex (Senior/Ladies) / 0.370" - $44.99
Low stock (3 left)
+
Catalyst 50 / 5.0 Flex (Stiff) / 0.370" - $44.99
Estimated to ship in 3-5 days** (addl delays may apply - contact us for details)
+
Catalyst 60 / 6.0 Flex (Stiff) / 0.370" - $44.99
In Stock
+
Catalyst 80 / 6.0 Flex (Stiff) / 0.370" - $44.99
Estimated to ship in 3-5 days** (addl delays may apply - contact us for details)
+

Free Shipping with $99+ US Orders*

Orders with US delivery addresses over $99 USD (subtotal) ship for free (excluding shaft orders to Hawaii and Alaska). We also have reasonable flat rate shipping options for order under $99, as well as international deliveries. See our full shipping policy/rates

BTW, our team works fast to ship and get your order delivered as quickly as possible. All in-stock order ship the same day when placed by 5pm ET (2pm PT). For items not in stock, or available as pre-order, please allow ~3-5 business days to process before shipping.

60 Day Easy Returns

Change your mind? No problem. Our hassle-free returns portal lets you request a return and keep track of your refunds. See our return policy here.

100% Authenticity Guaranteed

Grips4less only sells 100% authentic products. We purchase direct from top manufacturers and ship all orders from our warehouse. We've been working with all the top brands in golf for over 3 decades, which means if there are any issues you encounter with your purchase, we are here to resolve them as quickly as possible (so you can get you back on the course!). Your satisfaction is our #1 priority!

Ask Us Anything!

We've been in the golf business for over 3 decades, and we know a lot about golf equipment. If you've got questions, we've got answers (and in the rare case we don't, we will find you someone who does). Send us a text message or e-mail!

Questions & Answers

Have a Question?

Ask a Question
  • Project X Catalyst Graphite Iron Shaft - 0.370" Parallel Tip I cant get the website to open the trimming directions

    Here is the URL with the trimming instructions:
    https://www.truetempersports.com/en-us/media/wysiwyg/Golf/Catalyst%20TrimGuide.pdf

  • Shaft flex used to be designated as "lite, senior, regular stiff, etc. How does the new designation of 4.0 , 5.0 , 5.5 compare to the old system.

    Here's the mapping of "Project X flexes" to traditional flex names:

    4.0 = Lite flex (like senior or ladies)
    5.0 = R flex
    5.5 = R+ flex
    6.0 = S flex
    6.5 = X flex


  • Just won wedge at charity event, has this shaft, Catalyst 80 6.0 on it, where or how do you tell if it’s regular, stiff or xtra stiff?

    6.0 means its a Stiff flex

  • Can these be use in hybrid or fairway clubs?

    They can be used in any clubhead that requires a 0.370" tip shaft. Most hybrid clubheads take 0.370" tip, and most fairway wood heads take 0.335" tip. But please refer to the manufacturer sites for exact hosel/tip size information. Or you can send us a message here (help@grips4less.com), and we can also help determine this as well.


WHAT YOU NEED TO KNOW

WHAT YOU NEED TO KNOW
  • Graphite iron shaft
  • High stability with reinforced tip section
  • ISO-6 technology increases symmetry for tighter dispersion

 

SPECIFICATIONS

Series Flex Weight (g) Torque Launch Tip Dia. But Dia. Length
Catalyst 40 4.0 (Senior/Ladies) 57g 5.5 Mid-high .370" parallel .587" 41"
Catalyst 50 5.0 (Regular) 63g 4.5 Mid .370" parallel .587

41"
Catalyst 60 5.5 (Regular+) 68g 4.5 Mid .370" parallel .595 41"
Catalyst 60 6.0 (Stiff) 68g 4.5 Mid .370" parallel .595 41"
Catalyst 80 6.0 (Stiff) 85g 3.5 Low-mid .370" parallel .595 41"
Catalyst 80 6.5 (X-Stiff) 85g 3.5 Low .370" parallel .595 41"

 

INSTRUCTIONS

>> Project X Catalyst Iron Shaft Trimming Instructions

 

FULL DESCRIPTION

Catalyst is the next step in graphite iron design. Featuring our new Iso-6 material technology, Catalyst is engineered to replicate steel alloy properties over 100% better than traditional graphite laminates. This allows for an extremely stable shaft that maximizes constancy and distance control while providing the benefits of a graphite body design. Catalyst also features a reinforced tip section which, unlike traditional graphite, delivers torsional resistance comparable to that of steel—improving stability during turf interaction for better impact on less than perfect shots.

ISO-6 is a revolutionary technology that bridges the gap between what a steel shaft is and what a graphite shaft can be. Traditional graphite laminates are only 35% as symmetrical as steel. Through advanced material modeling and analysis, Project X engineers constructed a new laminate design to eliminate weak spots found in graphite iron shafts due to the lack of symmetry. With ISO-6 being 75% as symmetrical as steel (over 100% better than traditional graphite laminates), graphite iron shafts made with ISO-6 provide superior accuracy in comparison to the competitors’ shafts.

Customer Reviews

Based on 9 reviews
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M
Morgan

Great product and even better packaging, good to know this company is trust worthy.

A
Antonio

The company delivered quick! exactly what I paid for.

S
Stanley Smith

Project X Catalyst Graphite Iron Shaft - 0.370" Parallel Tip

E
Edward Kosior
New shafts

Really liked the process with this company. I have this shaft in my eight iron and really liked the performance I have gotten from it so decided to upgrade my other clubs I’ll be looking to order 4 more shafts to complete my set.

Thank you

B
Bruce Voorhees

Project X Catalyst Graphite Iron Shaft - 0.370" Parallel Tip

Project X

Project X Catalyst Graphite Iron Shaft - 0.370" Parallel Tip

$44.99 USD
WHAT YOU NEED TO KNOW

 

SPECIFICATIONS

Series Flex Weight (g) Torque Launch Tip Dia. But Dia. Length
Catalyst 40 4.0 (Senior/Ladies) 57g 5.5 Mid-high .370" parallel .587" 41"
Catalyst 50 5.0 (Regular) 63g 4.5 Mid .370" parallel .587

41"
Catalyst 60 5.5 (Regular+) 68g 4.5 Mid .370" parallel .595 41"
Catalyst 60 6.0 (Stiff) 68g 4.5 Mid .370" parallel .595 41"
Catalyst 80 6.0 (Stiff) 85g 3.5 Low-mid .370" parallel .595 41"
Catalyst 80 6.5 (X-Stiff) 85g 3.5 Low .370" parallel .595 41"

 

INSTRUCTIONS

>> Project X Catalyst Iron Shaft Trimming Instructions

 

FULL DESCRIPTION

Catalyst is the next step in graphite iron design. Featuring our new Iso-6 material technology, Catalyst is engineered to replicate steel alloy properties over 100% better than traditional graphite laminates. This allows for an extremely stable shaft that maximizes constancy and distance control while providing the benefits of a graphite body design. Catalyst also features a reinforced tip section which, unlike traditional graphite, delivers torsional resistance comparable to that of steel—improving stability during turf interaction for better impact on less than perfect shots.

ISO-6 is a revolutionary technology that bridges the gap between what a steel shaft is and what a graphite shaft can be. Traditional graphite laminates are only 35% as symmetrical as steel. Through advanced material modeling and analysis, Project X engineers constructed a new laminate design to eliminate weak spots found in graphite iron shafts due to the lack of symmetry. With ISO-6 being 75% as symmetrical as steel (over 100% better than traditional graphite laminates), graphite iron shafts made with ISO-6 provide superior accuracy in comparison to the competitors’ shafts.

Flex

  • Catalyst 40 / 4.0 Flex (Senior/Ladies)
  • Catalyst 50 / 5.0 Flex (Stiff)
  • Catalyst 60 / 6.0 Flex (Stiff)
  • Catalyst 80 / 6.0 Flex (Stiff)

Tip Size

  • 0.370"
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