HRD-KORE FINS

Enhance the Flow…

Our HRD-KORE range of fins is broken up into several different distinct design series.

Each series will be detailed separately with the information presented on the available templates, dimensional information, and combinations.

Some of our older series are not displayed here, so if you want an older design, feel free to contact us for availability.

Explore the range through the DETAILS access buttons in the sections below.

NOTE: we are slowly eliminating the HRD-KORE templates in favor of CNC versions. This gives us greater flexibility but, more importantly, better quality and strength.

WTF/XTC/DS Series

The primary driving force behind the design of these fins is to deliver a template that behaves more like a wing than your typical "dolphin fin" style surfboard fin. The motivation for this design all started from the design of a tail wing for a foil board.

Like many modern wings, this design features a tip extension to enhance the performance of the fin. This extension is flipped 16º to the outside and has a slight hollow foil on the inside face. The body of the fin also features a strong hollow foil. These fins are very efficient and fast, with a ton of drive. They also have the uncanny ability to help the board move through dead spots on the wave.

Three designs are lumped into this category as they are commonly used together.

WTF Series

The WTF range currently consists of just this single template, but it is something else. Therefore, it is tough to classify this fin as an unusual and unbelievable performer.

Don't let the look of the fin throw you off. A lot is going on with this fin, and it delivers big time. The most concise description for this fin is that it represents a super canard-style fin. The fin is not just a simple vertical fin. Its profile has two distinct breaks: the central blade area flipped out by 7º and the trailing tip extension at 25º. This fin must be seen to believe what is happening with the shape.

It is most commonly used with a more upright back fin, larger than this fin. The WTF serves as the transitional fin in a reverse quad setup where it initiates turns and then transitions the turn onto the back fin. This fin works in an extensive range of conditions and wave heights. It has been tested in everything from 3' to 25' faces and works through the whole range.

WTF Series

WTF Series

WTF-425 TWIN

Set of two fins

It is the only fin in this series that serves as the front fin for a QUAD setup, typically in combination with the XTC fins, but it could be used with other similar fins. Under certain circumstances, it could be used as a back fin, but that is not the intended usage model for this design.

DIMENSIONS

height: 4.25" [108mm] base: 2.875" [73mm] area: 10.41 in 2 [67.16 cm2]

MSRP: US$60.00

SALE: US$30.00

Price includes a bag and key

SKU: OUT-HRD-WTF-425-TWIN

COMBOS

Given the fact that there is only the single template in this series it is most often used in combination with the XTC fins.

See the XTC combos for uses of this fin design.

Also available from our distributor

XTC Series

The XTC range currently consists of two side fin sizes and one center. The two side fins shown here and the center fin have been the most heavily used and tested. These fins are also commonly used with the WTF.

The primary driving force behind these fins is to deliver a design that behaves more like a wing than your typical "dolphin fin" style surfboard fin. The motivation for this design all started from the design of a tail wing for a foil board.

Like many modern wings, this design features a tip extension to enhance the performance of the fin. This extension is flipped 16º to the outside and has a slight hollow foil on the inside face. The body of the fin also features a strong hollow foil. These fins are very efficient and fast, with a ton of drive. They also have the uncanny ability to help the board move through dead spots on the wave.

Due to their upright nature, they turn exceptionally well without losing speed through the turns. The tips play a crucial role in turning as they allow for the fin's transition during a turn. As the board is placed further on its rail, the tip of the fin becomes more vertical in the water, allowing it to create a pivot point. Hard to describe, but something that can be easily felt when using the fins.

Two combinations can be created for thrusters: the XTC-413 / XTC-450C for a smaller, looser setup and the XTC-500 / XTC-450C combo for a lot more drive and hold. Due to the shape of the center fin, it has a lot of hold when positioned further forward while still providing excellent turning ability due to the more upright nature of the body of the fin.

These fins have been ridden in boards ranging from small fishes and kneeboards through guns to tow boards. They have successfully surfed in everything from 3' slop to 40' faces. They work!

XTC Series

XTC Series

XTC-413 TWIN

Set of two fins

Designed primarily as the back fin for an XTC QUAD set or a front fin in an XTC REVERSE quad, it is also used as a side fin for smaller thruster setups. It also serves as a side bite in a 2PLUS1 setup.

DIMENSIONS

height: 4.125" [105mm] base: 2.875" [73mm] area: 8.91 in2 [58 cm2]

MSRP: US$60.00

SALE: US$30.00

Price includes fin bag and key

SKU: OUT-HRD-XTC-413-TWIN

XTC-500 TWIN

Set of two fins

The primary fin design for this series serves as the larger fin in a QUAD setup and the side fin in a THRUSTER setup. Features FLIP TIP technology and a more wing-like outline for lift and speed.

DIMENSIONS

height: 5.00" [1272mm] base: 2.875" [73mm] area: 11.73 in2 [75.68 cm2]

MSRP: US$60.00

SALE: US$30.00

Price includes fin bag and key

SKU: OUT-HRD-XTC-500-TWIN

XTC-450C CENTER

Single fin

This is the dedicated center fin for this series, and it can be combined with either the XTC-500 or XTC-413. It features a more extended tip for additional hold and drive.

DIMENSIONS

height: 4.50" [114mm] base: 2.875" [73mm] area: 10.75 in2 [69 cm2]

MSRP: US$30.00

SALE: US$15.00

Price does not include a bag

SKU: OUT-HRD-XTC-450C-CENTER

COMBOS

Given the limited sizes for the fins in this series, the following combinations are possible.

Additional combinations can be created by mixing them with other fins, some of which are also shown here.

Also available from our distributor

DS Series

The DS series currently consists of just this single template, it looks like a variant on a hatchet fin, but a lot is going on with this fin that is not apparent when viewing It from the side.

This design delivers a lot of drive and speed from a small package. It is only 4" tall, but due to the raked-back shape, it has a lot of pop-out turns and exceptional holding power.

The unique thing about this design is that the entire upper blade is flipped outboard by 6º, and both the bottom portion of the fin and the upper blade have hollow foils. These features make this fin incredibly fast and effortless through turns.

Flipping the upper portion of the blade will gain a couple of critical performance enhancements. Firstly, it helps the fin transition through a turn making the turns feel more fluid. Secondly, as the board transitions onto the rail, the upper blade becomes more vertical in the water, dramatically enhancing the fin's feel in a turn. Essentially it makes it much easier to push off the fin in a turn. When coupled with the flex in the fin, there is a lot of pop out of turn, such as a small fin.

The speed of this fin comes from the fact that it has a very low wetted surface, so this reduction in drag helps it go through the water a lot faster. Plus, the hollow inside foils also greatly enhance the water flow over the fin, enhancing the speed.

Surprisingly, as small as this fin is, it works incredibly well as the side fin in a thruster setup, primarily due to the shape. This fin rocks in a thruster setup on shortboards when coupled with the XTC-450C center fin. It is also suitable as a side bit in a 2PLUS1 design.

DS Series

DS Series

DS-400 TWIN

Set of two fins

It is the only fin in this series that serves as the front or back fin for a QUAD setup, typically in combination with the XTC fins. Under certain circumstances, it could be used as a rear fin, but that is not the intended usage model for this design.

DIMENSIONS

height: 4.25" [108mm] base: 2.875" [73mm] area: 10.41 in2 [67.16 cm2]

MSRP: US$60.00

SALE: US$30.00

Price includes a bag and key

SKU: OUT-HRD-DS-400-TWIN

COMBOS

There are no specific combos for this template. See the XTC combos to see how they are used with those fins.

These also make great side fins in a 2PLUS1 setup.

Also available from our distributor

HRD-KORE Price List

TWIN Set
$60.00
THRUSTER Set
$90.00
QUAD Set
$120.00
5FIN Set
$150.00
CENTER Fin
$30.00

All prices subject to change without notice

WARNING - DUAL TAB Fin Bases

HANALEI FINS cannot guarantee against the breakage of dual tab bases. The DUAL TAB system is designed to break under specific loads or hard impacts.

We try to make the tabs as strong as possible, but there is only so much we can do before we run into the limitations of the base design.

If a DUAL TAB base does break, we will work with the customer to replace the fins at a reduced price, but we cannot outright replace the fins at no charge!

NOTE - REPLACEMENT Fins

HANALEI FINS cannot sell individual side fins should you lose a side fin, as it means we have to break up a set of fins. So we are left with a fin that we have little chance of selling by itself.

If a fin is lost, we will work with the customer by selling a set of replacement fins at a reduced price. These replacement fins would not be in a bag to keep the cost down!

INFO - FLIP TIP Fins

For anyone interested in our fins featuring FLIP TIPS, please be aware that these fins are sensitive to the amount of toe-in used in the box setup, so it is worth checking with us.

We have encountered several cases where fin boxes set up with excessive toe-in have caused issues with fins featuring FLIP TIPS. We want to ensure there are no problems with our fins. Therefore we are offering to verify that they will work in the setup on any given board before buying any of these fins.

Before you order any of these fins, if you are unsure whether they will work on your board, please CONTACT us so we can ensure they will work for you!

Advanced fin designs to take your surfing to the next level.

OFFICES

Primary office locations for HANALEI FINS - Australia and Hawai'i (USA). Contact info is provided here, but the preferred contact method is through the contact form on this site.

+61 2 4339 9580

+1 808 639 5303