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1. Maui Ultra Fins

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MUF Delta

Delta XT 50 Carbon

The Delta-XT-50-Carbon has a rake of 50 degrees and a thin flat profile. Due to the RTM-carbon construction we could optimize the weight and performance. The fin is our new benchmark for slalom & speed in extremely shallow spots and suitable for thick seaweed. Extremely fast and reliable!


Lengths: 22, 24, 27 and 30 cm 
Systems: PB + TT

Ask for Prices and availability for Delta-XT-50-Carbon

 New Delta XT-50

The New Delta XT50 is aimed at riders who are looking for great speeds and need slightly less rake than our current Delta fins have. That will mean a reduction by about 5 % in rake to 50 degrees (instead of around 55). That means earlier planning and less sensitivity for back-foot pressure, generally easier handling / more comfort. The profile is also new and narrower resulting in higher end speeds.

MUF will produce the delta XT50 in the sizes 10 cm to 30cm (in 2 cm steps, Powerbox, Tuttle and Deep-Tuttle).



Price including postage




























Delta-XT50 Deep tuttle



Delta-XT50 Power Box



Delta-XT50 Deep tuttle



Delta-XT50 Power Box



Delta-XT50 Deep tuttle




Special on Delta XT fins in stock 30% off when you buy online 35% off 

when you pay cash and pickup from Gareth.

Delta XT

The New Delta XT has been designed to give more grip and get up and go than the original MUF Delta. This has been achieved by reducing the rake and increasing the surface area at the back of the fin and at the tip. This gives you access to shallow weedy spots with increased confidence in your fin to hold on as you blast around raking up the GPS PB's. You are able to sail with 1-2cm smaller Delta XT than the original delta yet have the same amount of grip.

Delta XT 16  $180.00

Get 35% off RRP when you pay cash and pick up from Gareth

 With the Delta wing series we have introduced a completely new category of fins. Inspired by the aeronautic Delta wings, Rick has transferred the special aerodynamic features to windsurfing applications:
– very short wing span combined with a large area
– very thin and stiff profiles– high rake of 55 degrees
– additional lift due to leading edge vortex at high angles of attack
All these features make the Delta fins the ultimate tool for shallow spots, extremely weedy conditions and speed sailing. Compared to a straight freeride or slalom fin, the fin length can almost be halved. Combined with the high rake, the danger of injury by touching ground is greatly reduced. Speed sailors can finally use the flat conditions of tidal waters for even higher speeds.Our Delta wings are fast, easy to control, have great upwind abilities and jibe great in wide and medium arcs.

 Delta Slalom

  Ambitious slalom sailors who want to go fast in shallow waters or very weedy spots should go for the Delta Slalom.Due to the wider base, the fin length can almost be halved compared to straight fins. The Delta Slalom allows excellent upwind runs, is very fast and the high rake offers increased safety in shallow conditions.The Delta Slalom Carbon fin is made in Carbon to make it super light. ( 30 cm version is only 643 g). Available  from 24 to 30 cm. The fin is dedicated to bigger boards and also for Formula sailing.Best suited: Slalom in shallow waters and for extremely weedy conditions

30% off Delta Slalom fins 

Delta Slalom 19 power box $225.00

 Delta Speed

 The revolutionary Delta design with its thin profile allows for very high speeds. The Delta-Speed offers ambitious speed sailors the first and unique chance to sail in extremely shallow water like tidal channels.
Best suited: Shallow waters and extremely weedy spots.

30% off Delta Speed fins 

Delta Speed 18 tuttle box $240.00 

Delta Speed 18 tuttle box $255.00 

Slalom Weed

 The Slalom-Weed was developed as a race / slalom fin for weedy conditions. It is based on our successful slalom fins and features similar characteristics. The low drag foil allows extreme speed and control even in choppy conditions. Incredibly powerful on upwind courses and spinout resistant. The perfect solution for your race gear.
Best suited: Race / Slalom, especially in weedy conditions

Speed Weed

Due to customer demand from Europe, America and Australia, we have released the Speed fin in a Weed-version. The fin is built for top speed with very low drag and excellent controllability.
Best suited: High speed sailing, especially in weedy conditions

Power Box

 THE weed fin! The high rake is compensated by a very efficient profile and outline so that the Weed achieves about the same performance as a straight freeride fin. This was officially documented by winning the German SURF test.
Best suited: All terrain, especially weedy conditions

 The Ride is the perfect fin for all conditions. The new profile and elliptic outline are part of a very efficient design. The board gets quickly on the plane, has a high top speed, is easy to sail in overpowered conditions and goes upwind like a train.


 The X-Ride follows the X-Wave concept. The thinner tip and the cut-out make this fin as powerful as the Ride, yet a bit more agile and looser.
Best suited: Agile freeriding in all conditions


The single wave fin X-Weed stands out as it reaches almost the same extremely high performance level as the Weed fin but offers on top very loose wave riding options. Extremely efficient, agile and fast - THE single weed wave fin!
Best suited: All waves, on- and sideshore, weedy conditions

Size Area Price  Box 
 $175.00 US
 26     251     $185.00 PB 



X Twin

 Size Area Price per pair Box 
17.538 $210.00 Slot  


X-Quad fins are the thruster fins for a quad board. Scaled down from the legendary X-Twin the thruster-set in combination with an X-Twin-set in the rear gives your board extreme performance, agility and confidence in any situation. Pros like Philip Köster simply love these fins.

 Size Area Price per pair Box 
 838 $145.00 US 

X-Quad S

Size Area Price per pair Box 
 838 $145.00 US
 9 46  $145.00 US

Twin Weed

The Twin Weed was developed as twinser fin for waves or freestyling in weedy areas. Turns and slides incredibly can be used in a Quad setup.

 Size Area Price per pair Box 
 14 123 $180.00 Slot