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Steadfast JUPITER ONE PLUS Driver Shaft

JUPITER 1 PLUS Driver Shaft

$119.00
FlexRegular
AdapterCallaway

The Brand New Steadfast JUPITER ONE PLUS Driver Shaft was designed with torque and balance as the number one priority, leading to the best feeling and most stable shafts on the market.

Optimized head to shaft weight balance means an easier swing through the ball allowing the club to lead the hands through impact to naturally increase distance increasing ball carry while getting the proper RPM.

When you strike the toe or heel, you’ll still find your ball in or near the fairway. You’ll still get solid distance, too, as the test results proved.

Steadfast Golf carbon fiber golf shafts are an improvement to the typical graphite shaft, increasing the durability, performance, and overall feel of a driver.

If you are looking to drive longer and/or straighter this is the shaft for you!

With increased weight balance and our special low torque design, we guarantee you will experience longer distance with low spin dispersion.


Whether being tested by robots, pro golfers, or amateur players, the Steadfast Shaft will deliver consistent results and is an easy switch to make with any popular clubhead manufacturer.


STRAIGHT BALL FLIGHT 
Tested as the straightest shaft in golf with the least amount of dispersion. Hitting a straighter ball requires low shaft torque. The new Steadfast shaft was designed with torque and balance as the number one priority, leading to the best feeling and most stable shafts on the market.

FITS ANY BRAND 
Our premium carbon fiber shafts are also easy to set up and attach. They are shipped with the adapter and grip already installed by our expert club fitters. 

OPTIMIZED THROUGH TESTING 
Our shafts are engineered and tested individually by flex, meaning each flex is a completely different formula that has been optimized with hundreds of revisions and thousands of hours in the simulator and robotic testing.

Shafts and adapters are suitable for both right and left-handed golfers.


FLEX SPECS

Ladies  - (70-74 mph)
223 cpm, 45g,  45.5 in. play length



Senior - (70 - 89 mph)
227cpm, 50g, 45.5 in. play length

Regular - (90 - 99 mph)
241cpm, 55g, 45.5 in. play length

Stiff - (100 - 109 mph)
258cpm, 58g, 45.5 in. play length

X  - (110 - 129 mph)
273cpm, 61g, 45.5 in. play length

Ladies  - (70-74 mph) 223 cpm, 45g,45.5 in. play length

Senior - (70 - 89 mph) 227cpm, 50g, 45.5 in. play length

Regular - (90 - 99 mph) 241cpm, 55g,45.5 in. play length

Stiff - (100 - 109 mph) 258cpm, 58g,45.5 in. play length

X  - (110 - 129 mph) 273cpm, 61g,45.5 in. play length


Free 100 Days Flex Guarantee

Free shipping on orders over $175

Shaft Flex Satisfaction Guarantee:

We live to offer golfers top notch performance and quality products at an absurd value. If you aren’t fully satisfied with your purchase within 30 days of receipt, we will gladly work with you to ensure you are satisfied.

JUPITER 1 PLUS Driver Shaft

$119.00

Customer Reviews

Based on 232 reviews
88%
(204)
12%
(28)
0%
(0)
0%
(0)
0%
(0)
S
Scott McGlynn
Hard to believe

I really did not expect this shaft to make this much of a difference. I was hoping for a decent improvement, but this is more than I actually hoped for. Hitting more fairways and a gain of 15 yards was a surprise. Thank you.

J
Jerry Fizel
WOW, what a shaft

I was skeptic at first but loved the feel of shafts with low torque. So I put one in my Mizuno Driver and was shocked on my first tee, straight & long. You get great sense of what your shot is going to be through the grip before you turn and look.
I highly recommend this shafts, great quality, great price.

T
Thomas Kernells
Great Driver Shaft

I have played golf for many years and have tried many different shafts. This shaft is awesome right out of the box. I recommended this shaft to several of my friends. They love them too. Thanks for straighter and longer drives

R
Rene Arteaga
Callaway Driver Shaft

The shaft was extremely accurate providing excellent dispersion. At this time, I have not noticed a difference on distance, but I do like the feel of the club.

A
ANTHONY MICU
Callaway vs Steadfast

I purchased the senior shaft. Much tighter dispersion . In terms of distance, I might have gained a few yards, but I was hitting range balls. I'll test it out on the course in a few days. So far, appears to be a great shaft
Updates to follow.


START DRIVING FURTHER AND STRAIGHTER

Designed with torque and balance as the number #1 priorty, leading to the best feeling and most stable shaft on the market

As seen in

instantly enjoy more distance, accuracy and consistency

We've eliminated additional costs to offer high-quality, tour-level shafts at an unbeatable price for optimal performance for golfers of every proficiency level.

Yes, that means you 🫵

"Straightest Shaft in Golf"

Club Champions review and test Steadfasts superb Shafts


**Steadfast Shafts**

What's the big deal?!

Our mission is not just to outperform the competition, but to dominate it.

Made with..

Premium carbon fiber

Steadfast Golf golf shafts are an improvement to the typical graphite shaft, increasing the durability, performance, and overall feel.

Perfectly optimized

Head to shaft weight balance

This means an easier swing through the ball, allowing the club to lead the hands through impact to naturally increase distance increasing ball carry while getting the proper RPM.

Golf Laboratories Tests:

Reduced mishit dispersion by 50%

...That's 28 yards against other 'premium' expensive shafts.

In other words, if you hit it off the toe or heel, it continues to go straight for the same distance. 

Ball speed increased slightly for the Steadfast shaft and backspin was better or equal to competitors.


Black stealth look. Dispersion is much better than the stock shaft my driver came with. I've noticed increased distance and would recommend anyone to try this shaft.

Ray K.
Verified Customer

Phenomenal Shaft! I have never driven the ball straighter, longer and stayed in the middle of the fairway. All my drives are going over or close to 300 yards. Keeping this secret from my buddies for this season🤣🤣

Lexington B.
Verified Customer

I was complete shock in my first couple of shots with my driver. For the cost, great appearance & performance it is totally amazing. Great launch, very tight ball dispersion and ball length I believe has increased. I am truly considering placing a Jupiter shaft in my 3 wood. I would not hesitate to recommend the Jupiter shafts to my friends.

Jerry F.
Verified Customer

numbers don't lie

HERE’S WHAT THE TESTING SHOWS…

The below data was collected using the same TaylorMade M5 driver head (set at the same loft) with three different shafts: 


- Steadfast

- Shaft A (major aftermarket shaft manufacturer)

- Shaft B (major aftermarket shaft manufacturer)

>
Head to head
Steadfast Shaft A Shaft B
Ball Speed 172 168.1 166.5
Backspin 1,813 2,420 2,689
Carry Yards 288 278 276
Total Yards 313 301 298

So...

What does this mean for me?

To summarize, the data shows that Steadfast Shafts come out on top for all three metrics::

 

✔️ DISTANCE: 10-15 more yards of carry and total distance
because Steadfast shafts produce more ball speed and less backspin.

 

✔️ ACCURACY: 25% fewer mis-hits and dispersion because of Steadfast’s extremely low-torque shafts reduce sidespin.

 

✔️ CONSISTENCY: Steadfast shafts are precisely weighted and effectively “spineless,” so kick points remain consistent even when adjusting
driver heads.


3 and 5 Wood Shafts

Closeup Of the JUPITER ONE PLUS 3 Wood Carbon Fiber Shaft Logo

3 - Wood

Dialled in distance, accurancy and control

Closeup Of the JUPITER ONE PLUS 3 Wood Carbon Fiber Shaft Logo

5 - Wood

Don't compromise distance or control