Every order, worldwide, with tracking.
Return it within 30 days of delivery.
Defects, materials and workmanship.
All five CYCLUX 3.1 models.
Five heads. One way to aim.
Every CYCLUX 3.1 uses the same Zero Point Control™ alignment. Head shape, weight and the standard rear module are what change.
CYCLUX 3.1.1
$549
Precision blade
Blade for golfers who want a square look at address.
- Head weight
- 12.3 oz (350 g)
- Rear module
- MOD1 · 40 g
CYCLUX 3.1.2
$549
Alignment blade
Blade with a center alignment guide for players who aim by line.
- Head weight
- 12.9 oz (365 g)
- Rear module
- MOD2 · 55 g
CYCLUX 3.1.3
$549
Stability half mallet
Half mallet that balances forgiveness and a straight roll.
- Head weight
- 13.1 oz (372 g)
- Rear module
- MOD3 · 62 g
CYCLUX 3.1.4
$599
Control mallet
Mallet for high forgiveness and a stable stroke.
- Head weight
- 12.7 oz (360 g)
- Rear module
- MOD4 · 50 g
CYCLUX 3.1.5
$599
Max stability mallet
Flagship mallet with the most stability in the series.
- Head weight
- 13.1 oz (372 g)
- Rear module
- MOD5 · 62 g
Head weight is the 11 oz (310 g) head plus the standard rear module. Every head accepts all five modules, MOD1–MOD5.
Same on every model
- 0° loft, 72° lieOn every head
- 32 to 35 inStart with 34 in if unsure
- Standard or Mid grip2.5 oz (72 g) or 1.8 oz (52 g)
- SUS303 stainless steelCNC-milled head and face
- Zero Point Control™Built into the head
- Rules of GolfConforms on all five
How to use Zero Point Control™
Align your eyes. Align your putt.
Three checks at address, the same on every putt. When your eyes are over the ball, the lines on the head connect and your setup is square.
Your eyes are not over the ball, so the top center guide and the three rear lines don’t connect. Your aim is off before you putt.
Eyes directly over the ball. The top center guide and the three rear lines read as one, so you are set up square to your line.
Step 1
Eyes over the ball
Take your normal stance, then set your eyes directly above the ball.
Step 2
Make the lines one
Look down at the head. Adjust until the top center guide and the three rear lines connect into one straight line.
Step 3
Commit and putt
Once the lines connect, stop adjusting. Make your normal stroke.
Zero Point Control™ is built into all five CYCLUX 3.1 heads. It sets up your aim; it does not change your stroke.
Independently robot-tested
The Korea Institute of Golf & Sports (KIGOS) tested CYCLUX with a putting robot from 10.5 ft (3.2 m), striking the ball at the center, toe and heel of the face. Not a claim. A measured result, under identical test conditions.
Robot test by KIGOS at 10.5 ft (3.2 m). Results describe ball dispersion under controlled conditions; on-course results depend on the player. Read the test summary
Module platform
Replace the module, not the putter.
Keep the grip, shaft and head you trust. Two screws hold the rear module in place, so a screwdriver is all it takes to change the head’s weighting and look at address.
Shown: MOD1 swapped for MOD5, turning a 3.1.1 into a 3.1.5.
Modular system
Five rear modules. Every head fits every module.
Each CYCLUX 3.1 putter ships with one standard rear module. The head is 11 oz (310 g); the module sets the final head weight.
MOD1
40 g1.4 oz
Stainless steel
Standard on 3.1.1
MOD2
55 g1.9 oz
Stainless steel
Standard on 3.1.2
MOD3
62 g2.2 oz
Stainless steel
Standard on 3.1.3
MOD4
50 g1.8 oz
Aluminum
Standard on 3.1.4
MOD5
62 g2.2 oz
Aluminum
Standard on 3.1.5
Keep what fits. Change what matters.
Stainless steel modules (MOD1–MOD3) and aluminum modules (MOD4–MOD5) attach to the same interface on every CYCLUX 3.1 head.
Independent robot test by KIGOS
Lab-tested. Measured, not claimed.
At the Korea Institute of Golf & Sports (KIGOS), a putting robot struck CYCLUX from 10.5 ft (3.2 m) at the center, toe and heel of the face. Same stroke, same conditions, every putt. Here is how far apart the balls finished.
Results describe ball dispersion under controlled conditions; on-course results depend on the player. Read the test summary
Stability on off-center strikes
The cavity design places mass toward the heel and toe. That raises the head's resistance to twisting at impact, so strikes away from the center hold their line better.
Missing straight 4-footers?
Zero Point Control gives you one fixed checkpoint at address, on every putt.
Shop the 3.1.2 alignment bladeWhat golfers say
First time ever putting on the course with it. 11 one putts. Love this putter. My buddies are envious. Feel was awesome. Didn't take long to adjust the speed. The face is really consistent.
Why ONE O EIGHT
Named for the hole.
A golf hole is 108 mm (4.25 in) across. Every CYCLUX is designed around one goal: getting the ball into it more consistently. We read putting through physics, not just feel, then build the answer into the putter.
Read our story
The book
Putting Mastery
The Science of Feel: Zero Point Control for Consistent, Precision Putting
By Kwang Nam Kim
Available on AmazonFounder & CEO
Designed by Kwang Nam Kim.
Founder and CEO of ONE O EIGHT and the developer of CYCLUX. More than 40 years in sport, including golf instruction and club fitting. Author of Putting Mastery: The Science of Feel, published on Amazon USA.
- PatentedOriginal CYCLUX technology, protected by patents.
- Silver AwardSeoul International Invention Fair.
- Level 1Golf Fitting Qualification, Korea Golf Fitting Association.
How every CYCLUX is made
CNC-milled and hand-finished, then engraved with a serial number and the maker’s signature.
Milled, not cast
Each head is CNC-machined from SUS303 stainless steel, with a milled face for a consistent impact surface.
Finished in Korea
Globally sourced components, with final engraving, assembly, adjustment, inspection, and packaging managed in Korea.
Change it later
Choose 32 to 35 in and a standard or mid grip. The rear module comes off, so you can change the head’s weighting after you buy. Shop rear modules
Questions
Is shipping really free?
Yes. Every order ships free by express courier, worldwide, with tracking. Orders are processed within 2–3 business days. International orders may be subject to import duties and taxes. Shipping policy
What if the putter isn't right for me?
Contact us within 30 days of delivery and we'll refund your purchase under our 30-day money-back guarantee. Return shipping is paid by the customer unless the putter is defective or we sent the wrong item. Refund policy
Blade, half mallet or mallet?
Blades (3.1.1, 3.1.2) suit players who like a compact head and feedback from the face. The 3.1.3 half mallet sits between the two, balancing forgiveness and a straight roll. Mallets (3.1.4, 3.1.5) add the most stability for players who want steadier distance and direction on off-center strikes.
Which length should I choose?
Most golfers fit 33–35 in. Players with a compact posture or eyes directly over the ball usually prefer 33–34 in; taller or more upright players often prefer 34–35 in. If unsure, start with 34 in.
Can I try one before I buy?
Yes. Visit our Los Angeles showroom (3250 W Olympic Blvd #322, Los Angeles, CA 90006) or our authorized retailer, Golfio SuperStore (19950 E Walnut Dr N, Walnut, CA 91789). Locations and hours
Do you still sell the earlier models?
Yes. The MT and PT series CNC-milled putters are still available while stock lasts. Shop classic putters
What does the warranty cover?
1-year limited warranty from the date of purchase, covering manufacturing defects, material flaws and workmanship issues. A rear module bought separately is covered for 12 months from its own purchase date. Warranty details