Board type : Slalom XL (PWA)

Evolution of the S11 Race, with a more flexible tip
More rigid Fin body
Very significant foil effect

An ideal fin for powerful riders using wide boards with a high volume and big sails. The S12 Race is the archetypal light wind fin.
PWA Approved

Select Hydrofoils have worked with closely with RRD and North Kite and found that these are perfect for Racing Kites.  Most racers choose some S12 XL Slam in sizes 41 / 43 and S12 Slam in size 39 for their Kite boards.  Olivier Dansin and Julien Kerneur use Select fins for PKRA on North Kites boards and RRD boards and have helped Select in developing the right combo of fins for Kite Racing.  We also have as many newcomers to this Kiteing that use them too.

Technology : Semi custom moulded pre-preg process. Hand-finished.

Available box types : power / tuttle  / deep tuttle

Size : 49 - 51 - 53 - 55 - 57 - 59 - 61

 

Select the size you want and box type from the drop down menu and click buy.  Picture shows Tuttle Box

 

The size of the fin is of major importance : your fin is your propeller... It transmits the energy captured by the sail and generates a push which propels your board forwards. In order for the propulsion principle to work well, your sail / board / fins’ suitability must be perfect !

 

This fin selector has been developed to help users choosing the right fin length depending on the sail size and type of board they use.

 

The maximal board width being the value considered to suggest different fin lengths.  These tables were developed for slalom, race and free ride fins and consider the evolution of these different disciplines in the last two years.

 

The choice of the fin length depends on your sailing style and on your personal preferences. Do you like to sail over or under powered? Is the wind consistent or gusty ? Do you wish to have good upwind performances? All these parameters are influencing the ideal fin size.

 

The fin length we specify is valid for both freeride and slalom fins. Free-ride fins are more easily kept under control and easier to jibe, whereas slalom race fins bring more support and have a greater speed potential.

 

Fin Calculators are based on matching sail sizes and board specs together but should take into account the variables below.

 

General factors:

This calculator suggests fin lengths for both FreeRide and Slalom styles. As you make your choices. Please bear in mind that although Slalom fins give great support and speed that Freeride foils are easier to control and jibe.

• Red Digits indicate intermediary lengths for Freeride and Slalom shapes – so be sure to make adjustments based on your personal preferences.

Fin length / Board width

We’ve monitored board evolution over the past few seasons and, for Slalom and Freeride use, we recommend using board width to assist in choosing optimal fin length.

Ability & Preference related factors

Do you like being powered-up ?
Are you struggling to keep upwind ?
Perhaps you prefer maneuverability and comfort to top speed ?
In gusty, fluky conditions do you prefer to be comfortable in gusts and under-powered in lulls, or overpowered in exposed water but controlled in the holes ?

 

Variables due to conditions :
Go longer when : Board feels stuck to water Is hard to plane Drags leeward off plane Loses speed in lulls	Go shorter when : Board lifts too much Board keeps luffing hard You have difficulty turning You are out of control

 

 

Board Width cm	Sail Size
	5.0	5.4	5.8	6.2	6.7	7.2	7.8	8.4	9.0	9.8
51	26 28   26	26 30   28	26 30   30	-	-	-	-	-	-	-
55	26 28   28	28 30   28	28 32   30	28 32   30	29 32   32	-	-	-	-	-
60	-	28 31   30	28 32   32	30 34   32	31 35   34	32 36   34	-	-	-	-
65	-	-	31 34   32	32 36   34	33 36   36	34 38   36	36 38   38	-	-	-
70	-	-	-	34 38   36	35 40   38	36 40   40	38 42   42	40 44   44	-	-
75	-	-	-	-	38 40   40	38 42   42	40 44   44	42 48   46	44 50   48	-
80	-	-	-	-	-	40 46   44	42 48   46	44 52   48	46 56   52	46 58   52