The yellow line we use on the Islands is 1000 pound spectra, part number 81051001.
Hey thanks. I'd rather have the 1,000# spectra than the 750#. I kept looking at a new up/down line kit for Hobie which was a few years old and for the AI. It is definitely gray and was made for the twist n' stow. I compare that to the broken line on the newer AI with the big blade TI style rudder and the TI line is bigger.
Backyard Boats calls it 81051001 - LINE-CONTROL 1,000 lb, BEIGE @ $.32 / foot
Austin Kayak doesn't list it.
At only 2 cents more a foot getting the heavier correct line is a no brainer.
Thank you for chasing down the part number. It is not pictured anywhere in the accessories brochure.
BTW out of 5 Hobies I own and including those I sold I have never broken a rudder line. The spectra used is just that good. My TI style line broke because I had the rudder cleated down and the rudder stuck something quite hard while moving at a good speed. I had enough tail left to splice the line back to keep using the rudder.