RAY – 100% Carbon SUP Race Fin

SUP fin for increased tracking & stability, ideal for choppy inter-coastal waters & long distance

The RAY standup paddle board race fin offers exceptional tracking, stability and speed, helping you to stay upright and on course at record beating pace. This is especially helpful during longer distance paddling when fatigue creeps in – rememberer, you are not fast if you are falling off.

Thanks to proprietary foiling and a low drag profile paddlers will gain speed with increased glide between paddle stokes. When the water gets rough the Ray will really come into its own, the extra depth and increased area will help you stay upright and tracking straight. This SUP fin is highly recommended for rough water, lakes and inter-coastal areas.

The 35° rake and plan shape helps speed up buoy turns while keeping you balanced and in control. 

The Ray shares much of its DNA with the smaller TIGER and is an ideal change-up fin for windy days. If you have recently moved to a narrower SUP board then the Ray can offer that extra stability you will need with the loss of board width.

The Ray is best suited for intermediate stand up paddlers with a low to medium cadence. Built in our Ultralight Pro Carbon featuring our new LiteCore technology our fins are the lightest sup race fins available while being exceptionally durable.

The features of the Ray standup race fin ensure that you are going to paddle faster, straighter and stay upright with less effort than ever before.





Best For: When you need extra stability, tracking & glide, excellent in choppy conditions & longer distances. Ideal for a wide range of racing on flat water courses with multiple buoy turns. Great tracking & speed. Designed for ocean & downwind racing where you can take advantage of the wind & flow. Maximum agility & speed in ocean & downwind racing. Helps improve the surfing characteristics of race boards.
Suitable For: Intermediate to Advanced padders. Advanced to Professional athletes. Intermediate to Expert padders. Expert to Professional athletes.
Depth (cm/in) 24 / 9.45 20 / 7.87 21 / 8.27 18 / 7.09
Area (cm3 / in²) 283 / 43.9 216 / 33.5 223 / 34.6 214 / 33
Cord (cm / in) 15 / 5.9 14 / 5.5 14 / 5.5 16 / 6.3
Fin Base (cm / in) 17.5 / 6.9 16.5 / 6.5 16.5 / 6.5 18.5 / 7.3
Leading Edge (degrees) 35° 35° 45° 45°
Construction Ultralight Carbon with LiteCore Technology. Ultralight Carbon with LiteCore Technology. Ultralight Carbon with LiteCore Technology. Ultralight Carbon with LiteCore Technology.
Weight (gr / oz) 200 / 7.05 150 / 5.29 175 / 6.17 150 / 5.29
Warranty 1 yr 1 yr 1 yr 1 yr
USA Retail (Ex Tax) $180.00 $170.00 $175.00 $170.00

This table and chart illustrates what the RAY is best used for, if this matches your needs then it is an ideal choice for you.

When investing in a fin upgrade, you need to make sure you have the correct fit for your board. Unfortunately, board companies have so far not agreed on the preferred standard for fin boxes.

What makes it more confusing is that to the untrained eye, both fin box systems look almost identical. Luckily we have this area covered and the details below will ensure that you get the correct fin for your board.


Fits StarboardJP-AustraliaFanaticMistralRRD and most production brands with an origin in windsurfing. This is the same fin box that’s found on many windsurfing boards and is wider and deeper, with the pin set further from the deck of the board. The base is 9.2mm thick.

US SURF Base / Longboard Base / Bahne Box

This is the same box that is standard in many surf longboards. It is a narrower and shallower base as used by SICInfinity404NaishFlying Fish and many more. Narrower and shallower than the US base, these boxes have the pin set closer to the deck of the board. The base is 9.0mm thick.

IMPORTANT: If you are unsure which base you need, look at the base of your old fin and contact us for assistance.

Our new, hand-laminated, ultralight carbon construction takes quality, light weight and durability to new levels. While the previous RTM molded fins were great, we still saw room for improvement and incorporated those areas into the new fins.

The new layup featuring our carbon infused LiteCore technology enables us to control weight, strength and flex more precisely than before. The result is a paddleboard race fin which is race now approximately 25 grams lighter while being more resilient to damage.

  • Biggest fin we make, offers exceptional tracking & stability.
  • Area = 283 cm2 / 43.9 in2 the biggest fin in the range for increased tracking and stability.
  • Length = 24cm / 9.45” which helps stability and tracking
  • Weight = 225 grams (7.94 ounces) +/- 5%
  • LiteCORE Technology for increased strength & reduced weight.
  • Two different fin bases to fit all standup paddle race boards.