Jupiter Lite Driver Shaft - PRESALE
- Description
- DRIVER SHAFT FLEX SPECS
PRESALE - SHIPPING LATE AUGUST/EARLY SEPTEMBER
Engineered for Speed. Built for Precision.
The Jupiter Lite is the latest innovation from Steadfast Golf, developed in collaboration with shaft designer Steve Sacks. Designed for golfers who want more speed, better launch, and tighter dispersion, without sacrificing feel.
With a lightweight design using high modulus carbon fiber, the Jupiter Lite is 10 grams lighter than previous models—helping you swing faster and hit it farther with less effort.
A softened tip section improves responsiveness and launch angle, giving you higher ball flight and better carry. The balanced weight profile promotes a smooth swing and increased stability at impact.
Available Flexes: Senior (A), Regular (R), Stiff (S), Extra Stiff (X)
Performance Specs
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Weight: 45–46g (varies by flex)
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Torque: 5.3°
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Butt OD: ~0.615"
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Tip OD: 0.339"
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BP from Butt: 550mm
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CPM: 245 (S), 255 (X), others coming soon
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Tip Flex: 140 (S), 130 (X)
Tested in the lab. Trusted on the course. Jupiter Lite is built to help golfers of all swing speeds gain distance and accuracy—without changing a thing.
| Spec | Regular (R) | Stiff (S) | Extra Stiff (X) |
|---|---|---|---|
| Weight | 45–46g | 45–46g | 45–46g |
| Torque | 5.3° | 5.3° | 5.3° |
| Butt OD | ~0.615" | ~0.615" | ~0.615" |
| Tip OD | 0.339" | 0.339" | 0.339" |
| BP from Butt | 550mm | 550mm | 550mm |
| CPM | Coming soon | 245 | 255 |
| Tip Flex | Coming soon | 140 | 130 |
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
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.
START DRIVING FURTHER AND STRAIGHTER
Steadfast's first priority is to design a driver shaft with the most effective torque and balance. Not surprisingly, this leads to the best feeling and most stable driver shaft on the market
As Featured In
Instant Driver Shaft Joy
We eliminated additional costs to offer a high-quality driver shaft at an unbeatable price. This provides optimal performance for golfers of every proficiency level.
Yes, that means you. Experience the joy of longer, straighter drives.
"Straightest Driver Shaft in Golf"
Watch Club Champions Review and Test Steadfast Superb Shafts
*Steadfast Driver Shafts*
What's the big deal?!
Our mission is not just to outperform the competition, but to dominate it.
HERE IS HOW WE DO IT
DRIVER SHAFT MADE WITH...
Premium carbon fiber
Steadfast Golf driver shaft is an improvement to the typical graphite driver shaft. Why? Carbon fiber increases the durability, performance, and overall feel. You get more value for less.
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 Driver Shaft 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.
Finally, ball speed increased slightly for the Steadfast driver shaft. Furthermore, backspin was better or equal to competitors.
HERE IS WHAT GOLFERS SAY
driver shaft reviews
Real golfers share their experience with the Jupiter One Plus Driver Shaft.
“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 Driver 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 driver shafts reduce sidespin.
✔️ CONSISTENCY: Steadfast shafts are precisely weighted and effectively “spineless,” so kick points remain consistent even when adjusting
driver heads.
