We’ve compiled the tables below to help you choose the right fins for your board.
We have also compiled a FIN SPECIFICATION GUIDE, WAVE FIN GUIDE and TUNING GUIDE to help you pick the best windsurf fins.
FANG freeride fin sizes at a glance.
| SAIL SIZE | BOARD | FIN |
|---|---|---|
| 7.5-8.5 | 110-145 | 38-40 |
| 7.0-8.0 | 105-130 | 36-38 |
| 6.5-7.5 | 100-120 | 34-38 |
| 6.0-7.0 | 100-115 | 34-36 |
| 5.5-6.5 | 95-110 | 32-34 |
| 5.0-6.0 | 90-105 | 30-32 |
3SW freestyle-wave fin sizes at a glance.
| SAIL SIZE | BOARD | FIN |
|---|---|---|
| 6.5-7.5 | 115-135 | 30-32 |
| 6.0-7.0 | 105-125 | 28-30 |
| 5.5-6.5 | 95-115 | 26-28 |
| 5.0-6.0 | 85-105 | 24-26 |
| 4.7-5.7 | 75-95 | 22-24 |
| 4.5-5.5 | 65-85 | 20-22 |
Wave fin sizes at a glance for a 75Kg (165lb / 12stone) wavesailor on an 85ltr board (Not Stubby, maybe add 1-2cm to the rear for wide tails), then a 75ltr board for below 5.0
| SAIL SIZE | TWIN | TRI | QUAD |
|---|---|---|---|
| 5.7 | 17 | 12f 17/19r | 10f 15r, 8f 16r |
| 5.3 | 16 | 12f 16/18r | 10f 14r, 8f 15r |
| 5.0 | 16 | 12f 16r, 10f 16/17r | 10f 14r,8f 15r |
| 4.7 | 16 | 12f 15r, 10f 16/17r | 8f 15r |
| 4.2 | 15 | 10f 15/16r | 8f 14r |
| 3.7 | 14 | 10f 14/15r | 8f 13r |
Wave fin sizes at a glance for a 100Kg (220lb / 16stone) wavesailor on a 115ltr board, then a 95ltr board for below 5.0
| SAIL SIZE | TWIN | TRI | QUAD |
|---|---|---|---|
| 6.2 | 20-22 | 12f 20/22r | 12f 18r |
| 5.7 | 18-20 | 12f 18/22r | 12f 18r, 10f 19r |
| 5.3 | 18-19 | 12f 18/20r | 12f 16r,10f 17r |
| 5.0 | 17 | 12f 18r, 10f 18/19r | 10f 16r |
| 4.7 | 17 | 10f 17/18r | 10f 15r |
| 4.2 | 16 | 10f 16/17r | 10f 14r |
These sizes will be similar to those you would choose in g10.
Some brands use total area for sizing which would be as follows: 200 (13/8 cm), 250 (14/8 cm), 300 (15/9 cm), 350 (16/9 cm), 400 (16/10 cm). You can find our fin areas in FIN SPECIFICATIONS.
Please note that wider boards and/or heavier/taller and/or less skilled riders will require longer fins than those shown in the table and vice versa.
In really choppy conditions, you may also choose deeper fins to give the board more hold.
Fitting bigger fronts to your thruster or quad may make your board feel more planted and give more drive, but may also reduce the boards top end speed. It’s often better to downsize the fronts when it gets windier and you’re more powered up, as this will give less drag, more acceleration and make the sail feel less powered up and the gear more reactive to gusts giving the rider an easier time.
Reducing the size of the rears to below recommended will of course let the back release and slide out more easily, often desired for onshore conditions.
If going for a very ‘even’ thruster set up, we would recommend using symmetrical fronts rather than the Ezzy. If going for 12 fronts and 14 rear, for example, we would recommend Stubbies all round.
Please read the TUNING SECTION for a more indepth analysis on fin choice and a greater selection of fin options.
Use our WINDSURF FIN GUIDE and FIN SPECIFICATION GUIDE to help you pick the right windsurf fins.