Coefficient X -- eXperimentation with reducing skis' Coefficient of Drag
The single largest difference between the skis of the future and the skis of ten years
ago is the amount of physical effort required by the skier to ride them. As water skiing
evolves from a fight between boat and equipment to an efficient harmony between
man and machine, so must the equipment. The Coefficient X introduces the first major
departure from the traditional concave bottom ski of the last 70 years; Step Concave
Technology. When a traditional ski moves through the water it drags along with it a
layer of water molecules that stick to the bottom of the ski. In the science world, it is
known as boundary layer theory. The Step Concave introduces a very small amount
of turbulence into the concave, which interrupts the boundary layer, freeing the water
molecules and thereby allowing the ski to move through the water with a decreased
Coefficient of Drag. The result is a more efficient ski shape that minimizes the amount
of physical effort required by the skier so he or she can enjoy longer more efficient ski
The Coefficient X also employs a 7% smaller bevel than the Syndicate A1. This helps to
lift the ski out of the water for reduced drag and permits the proper amount of on water
slide skiers need to dictate when, where and how aggressively they turn.
The Coefficient X achieves its unparallel stability by utilizing a significantly deeper
concave, pintail geometry and 5-Stage rocker line. Each of these design elements holds
the ski to the water surface, so the step concave and smaller bevel design can dictate
the line between carve and slide for the ultimate slalom course of free skiing line.
The Syndicate Team was so intrigued by the Coefficient X design, HO decided to offer
it in two different constructions. The Superlite X utilizes the polyvinylchloride foam core
technology of the Syndicate Program skis and 90/10 Carbon/Fiberglass construction
for the most advanced core technology available with just a touch of dampening. The
standard Coefficient X is built out of the exact same molds as the SL, but has a more
traditional 50/50 carbon/fiberglass construction and a polyurethane core. Each ski is
handmade in Seattle, Washington.
As water ski boots have transitioned from rubber binders to textile footwear great improvements
have been made in ease of entry and overall boot comfort, but has performance been sacrificed?
Not anymore. The Attack utilizes a Liner-less Unibody Construction and a 1Piece 3D molded
tongue to deliver unmatched lateral ski edging power. Traditional "Stitch to" boots are made of a
liner inside of a synthetic leather shell. Because the liner and textile shell are not connected there
is a large amount of sheering between the two and the lateral support of the boot is much lower
than desired. Unibody construction mechanically attaches the soft comfortable liner with the
powerful textile shell to eliminate shearing and maximize lateral support and edge power. The
Attack also utilizes the 1Piece 3D molded tongue to provide positive feedback to forward ankle
flexion allowing the skier to let the Attack boot support them shifting their weight forward on the
ski for more efficient skiing. Combine this with the industry's only Baseless Aluminum Frame,
ultra lean, water ski specific design, and you have marriage of finesse and power seen in no other
hybrid boot on the market. By combining all of these less-is-more technologies, we are able to
make the Attack boot virtually Weight-less giving you a the perfect boot to outfit your lean and
light HO slalom ski!
- Cross-over skier
- Backbone of the HO Skis Cross Line
- Speed Step Technology for reduced ski drag and increased ski speed
- Low Taper Shape for the most efficient support through the finish of the turn
- 5-Stage Rocker for maximum speed, angle and stability
- Blended Carbon & Fiberglass Reinforcements for a more forgiving ride
- Polyurethane Foam Core for a traditional feel
- Aluminum T-Extrusion fin block
- Handmade in Seattle, Washington, USA
Coefficient-X Factory Settings
|Fin Length (Tips)
| 6.845 in.
| 6.845 in.
| 6.845 in.
|Distance From Tail
*Boot Location (Front Binding) is measured from the tail of the ski to the heel of the front boot.
**Distance from Tail is the measurement from the tail of the ski to the back of the fin.
- Cross Skier
- Liner-less design for greater responsiveness and lean boot design
- Base-less design for maximum control and skier feel
- Weight-less design for maximum strength to weight ratio
- New for '13 – Power Hook for quick entry/exit and improved upper cuff closure
- New for '13 – 1cm increased cuff height for greater lateral support
- New for '13 – reduced forward lean for more natural, upright stance
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65 in. = 100 - 160 lbs.
67 in. = 140 - 200 lbs.
69 in. = 180 - 250 lbs.
Men's 4 - 9 : Women's 5 - 10
Men's 7 - 11 : Women's 8 - 12
Men's 10 - 14 : Women's 11 - 15
Shipping Rates for this Product:
3-Day Shipping – FREE
2-Day Shipping – $20
Overnight Shipping – $50
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International Shipping – N/A
Return Info for this Product:
This product can be returned within 30 days for any reason as long as it does not have excessive wear or damage.
Returns on this product are available for refund or product exchange.