Slater Designs FRK LFT Surfboard

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The FRK was designed by Dan Mann as an everyday high-performance shortboard for Kelly Slater. Meant to be ridden in a variety of conditions, Kelly Slater has been seen riding the Firewire Surfboards FRK LFT Surfboard everywhere. In his machine-made wave pool, Jeffrey’s Bay, the North Shore, and everywhere in between. From the first wave he rode, Kelly knew he had something special. In fact, most the FRK's Kelly has been seen riding have been stock boards straight from Firewire’s factory. The board features a single to double concave for maximum speed and control while maintaining medium rails for added paddle power. The round tail and five fin option make this board suitable for a wide range of surf. From average beach breaks to pulsing reef breaks, the FRK was built to perform. I think Dan Mann explained it best when he was asked to describe the board.

If I had to describe the nuts and bolts of the FRKs design, I’d simply say it’s made to make you forget it’s there. When designing boards for Kelly I’m trying to remove as many variables as possible and make it something that can level up his talents, or the talents of other surfers, without any glitches, or ever feeling like it's in your way. I can’t wait to see everyone riding it in 19." —Dan Mann

Size & Volume Details

Length Width Thickness Volume
5’2" 17 ⅞" 2" 18.6L
5'4" 18" 2 ⅛" 20.6L
5'6" 18 ⅛" 2 ¼" 22.7L
5'7" 18 ¼" 2 5/16" 23.9L
5’8" 18 5/16" 2 5/16" 24.4L
5’9" 18 ⅜" 2 ⅜" 25.6L
5’10" 18 ½" 2 7/16" 27.0L
5’11" 18 ¾" 2 ½" 29.2L
6’0" 19 1/16" 2 ⅝" 30.6L
6’1" 19 5/16" 2 11/16" 32.3L
6’2" 19 ½" 2 ⅝" 33.2L
6’4" 19 ⅝" 2 ¾" 35.3L
6’6" 19 ¾" 2 ¾" 36.4L

Product Details

  • Type: Shortboard
  • Model: Performance
  • Construction: LFT Technology
  • Bottom Contours: Single / Double
  • Rail: Medium | Low
  • Tail: Rounded
  • Fin Configuration: Tri-Quad
  • Fin Plugs: Futures Fins compatible fin boxes
    *Fins NOT included

Product Construction

Linear Flex Technology - LFT
LFT incorporates Firewire’s SPRINGER HD, a 0.75” (18 mm) wide aerospace composite that runs down the centerline of the board, representing the next generation in our SPRINGER technology. The SPRINGER HD runs the entire length of the board and plays a pivotal role in optimizing flex from nose to tail. LTF’s deckskin serves as an additional buffer against the ridging effect that center stringers create over time, while simultaneously working in tandem with the SPRINGER HD to optimize the overall flex pattern of the LFT technology.

Additional Info

  • 1 – Entropy Bio-Resin Throughout
  • 2 – 1mm Ultralight High Compression Deckskin
  • 3 – Top Deck Sandwich Cloth
  • 4 – Aerospace Composite Springer
  • 5 – 1.5 lb EPS Core


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If you are not 100% satisfied with your purchase you may return it for a full refund, or exchange within 30 days of receiving your order.


Firewire Surfboards and Cleanline Surf have teamed up to make sure you can get any Firewire surfboard you want shipped to your door. Through our partnership, we have direct access to inventory at the Firewire warehouse in California and we can special order you boards by Firewire, Slater Designs, Tomo Designs, CJ Nelson Designs, Harley Ingleby Series, Kai Sallas, Skindog Surfboards, Soleil Series, Taylor Jensen Series.

Here’s how it works. Once an order is placed we contact Firewire promptly to confirm your board is in stock. Once confirmed the average wait time for a board to ship is 3 business days. Additionally transit time is 1 to 5 business days depending on where you are located. Most boards are ready to go, however, if there is any extended delay in shipping your board we will let you know right away.

Call us at 888-546-6176 or 503-738-7888 to learn more about Firewire Surfboard shapes, our opinions on how they ride, or if you need any additional special order shipping information you can use our contact page.

US Shipping Rates for Firewire Surfboards

Firewire, Slater Designs, Tomo Designs, CJ Nelson Designs, Harley Ingleby Series, Kai Sallas, Skindog Surfboards, Soleil Series, Taylor Jensen Series

Expedited Shipping?
We’ll need to get you a custom quote if you are working with a deadline and need a surfboard delivered in a few days .

Location 6'2 and under 6'3 to 8'1 8'2 and up
Lower 48 States $70 $100 $130
Hawaii & Alaska $150 $250 $400

All special order surfboards are delivered signature required. Read more about our Shipping Policy.

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