View Full Version : Error on starboard site isonic 131?

22nd May 2010, 10:45 PM
Are the recommended fin sizes for the Isonic 131 correct?

I just bought an Isonic 133. I am trying to figure out what fins to use with
my 7.8, 9.1 and 9.9 sails. I have 46, 48 and 50 fins. I am 240 pounds. I assume the recommended fins for the 131 would be similar to the older 133. Is that a correct assumption?

Chris Pressler
31st May 2010, 06:21 AM
your finsizes are excellent. You will use 48 and 50 most of the time!
There are no differences in the finsizes in between the 133 and 131.

Ride on,