JUPITER 1 PLUS Driver Shaft
- Description
- FLEX SPECS
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!
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
223 cpm, 45g, 45.5 in. play length
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
Complete the look:
Free 30 Days Returns
Free shipping on orders over $175
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.
Customer Reviews
Great shaft! I Was having a hard time with the shaft that came with the driver. I Could not get good hits and had to use my 3 wood and 4 iron on par 5. But with the new shaft the driver is working again Thank you! Jose
I've noticed 7-9 yards of improvement in my drives.
Most importantly the grouping on my drives has improved significantly.
I’m just your average 71 year old golfer who has a tendency to pull hook or leave it out to the right. So far my misses are noticeably more straight. Only been using it for a couple of weeks but it feels really good. Confident if I make good contact I will find it.
Enjoy the shaft, am getting the results I hoped for wit regard to all metrics including dispersion and distance. Great customer service as well. Recommend you give them an opportunity, think you will be happy with your results.
This shaft made a positive difference in my distance and consistency. It fit perfectly into my Tailormade adjustable drive. It surpassed my expectations.
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.
Let customers speak for us
“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.
”
“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🤣🤣
”
“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.
”
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.
