Fin for iSonic 137 for non-overpowered conditions
 

Hi
I bought an iSonic 137 which I will match with an 8,7 free-race 2 cam sail for light wind.

I am 1,78 m height and weight about 74 kg.

According to the chart on the back side of the board, I should get a 48-49 cm fin.

QUESTION : Does this chart apply both for overpowered and non-overpowered conditions?
If not, what size of fin should I use for non-overpowered conditions?

Thanks very much

A 48-49cm will be fine for free sailing in non-maxed out conditions. At 74kg, even a 46/47cm would work most of the time.

I have the 127 2011 and I use a Talon 48 for normal conditions (7.8/8.8) or a Canefire 44 in stronger wind (7.0/7.8). I'm 80kgs. They work well for me.