The Harley Ingleby Mid 6 Mini Twin Surfboard has similar width and volume to the popular 7’0” model, but with a slightly shorter 6’10” length and more pronounced plan shape curve. This makes it ideal for smaller pockets and perfect for a twin fin setup. Designed to pair with the FCS2 Power Twin fin set—created by Harley himself—this board blends speed, agility, and fun in a compact mid-length twin.
Size & Volume Details
| Length | Width | Thickness | Volume |
|---|---|---|---|
| 6'4" | 20.0" | 2 ⅝" | 36.0L |
| 6'10" | 20 ½" | 2 ⅝ | 40.0L |
Product Info
The Harley Ingleby Mid 6 Mini Twin Surfboard has similar width and volume to the popular 7’0” model, but with a slightly shorter 6’10” length and more pronounced plan shape curve. This makes it ideal for smaller pockets and perfect for a twin fin setup. Designed to pair with the FCS2 Power Twin fin set—created by Harley himself—this board blends speed, agility, and fun in a compact mid-length twin.
Size & Volume Details
| Length | Width | Thickness | Volume |
|---|---|---|---|
| 6'4" | 20.0" | 2 ⅝" | 36.0L |
| 6'10" | 20 ½" | 2 ⅝ | 40.0L |
Product Details
- Type: Mid-Length
- Surfboard Tech: Thunderbolt Red
- Concept Designed by: Billy Tolhurst
- Tail: Rounded Pin
- Fin Configuration: Twin
- Fin Plug: FCS II® compatible fin boxes
*fins not included
Product Construction
Thunderbolt Red
There are 3 construction types within the Thunderbolt Technology. Thunderbolt Red is handcrafted using an all-around fiberglass lamination. The bottom laminations are 6 and 2-oz. layers while the deck lamination is 6 and 4-ounces. The handcrafted result is a competition weight and flex longboard.
Additional Info
The Mid6 range has been designed to give maximum mid-length performance in all wave types. The fine, round pin tail, curvy plan shape, smooth rocker, with a bit of nose flip is equally comfortable turning deep in the pocket or long open-face arcs. High nose rails through to mid tucked and low hard in the tail, foiled from the centre for a nice balance of drive through sections while maintaining hold through tight turning arcs. While the Mid 6 fires in everyday surf, it is tuned enough to handle some pretty serious surf comfortably. Bill has blended the 6 channels perfectly. They are not so aggressive that they track in turns at all and it's very easy to break a line or adjust your arc length anywhere on the wave's face. With the channels balanced between your feet, when you push hard through a turn the response is immediate and the acceleration throughout is like no other board I have ever owned. The Mid 6 breaks the channel bottom stereotype that they're only good in clean waves. It has proven to be good in everything
Thunderbolt Technology
Thunderbolt Technology utilizes advanced materials and technology to decrease weight while enhancing performance, flex characteristics, board control, and durability. Mass-produced epoxy boards are corky and stiff. While light and durable, they simply don’t ride well. But Thunderbolt’s hand-built boards take superior epoxy materials to an entirely different level. These boards provide the feel and sensitivity of a good poly board but deliver performance far beyond traditional epoxy pop-out constructions. Indeed, those who ride these high-tech epoxy boards claim they actually feel better than polyurethane. Thunderbolt boards are 100% hand layups. They begin with an EPS foam core with multi-component carbon fiber stringer systems that produce engineered flex and twist for a more lively, responsive performance. Proprietary designs employing internal carbon fiber components are then arrayed in the deck and bottom of the deck for precise flex control and strength. The core shield PVC provides flexible protection to increase strength and durability without compromising the flex and twist characteristics built into the blank. With ample carbon fiber and fiberglass in the deck, bottom, and rails, these boards both outperform and outlast traditional PU boards and other epoxy designs.
Harley Ingleby Surfboards
Harley Ingleby is an Australian professional surfer renowned for his expertise in both longboard and shortboard surfing. He has achieved significant success in competitive longboarding, including multiple national titles and two victories on the prestigious World Longboard Tour. Known for his smooth style, advanced technical skills, and adaptability, Ingleby consistently excels in a wide range of wave conditions.
Billy Tolhurst
Billy Tolhurst has been a surfer and board shaper for over 50 years, pioneering design and innovation across a wide variety of surfcraft from a young age. His nearly three-decade-long partnership with Harley Ingleby has been instrumental in crafting board designs that helped secure Harley's World Longboard titles. More recently, their collaboration has redefined performance standards for mid-length surfboards.
Shipping From Subtotal
Subtotal and Cleanline Surf have teamed up to make sure you can get any Thunderbolt surfboard you want shipped to your door. Through our partnership, we have direct access to inventory at the Subtotal warehouse in California and we can special order you boards by CJ Nelson Designs, Harley Ingleby + Tolhurst, Skindog (Ben Skinner), Kai Sallas Longboard Co., Surf Crime, and Part Time Lover.
Here's how it works. Once an order is placed we contact Subtotal 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.
US Shipping Rates for Surfboards Shipped From Subtotal Distribution
CJ Nelson Designs, Harley Ingleby + Tolhurst, Skindog (Ben Skinner), Kai Sallas, Surf Crime, Part Time Lover
| Location | 7'11 and under | 8'0 and up |
| Lower 48 States | $140 | $185 |
| Hawaii, Alaska, & Puerto Rico | Not Available | Not Available |
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.
Surfboards shipped from Subtotal Distribution are delivered signature required. Read more about our shipping policy.
Returns
If you are not 100% satisfied with your purchase you may return it for a refund, or exchange within 30 days of receiving your order.








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