640cc Uber Pimp
I've been very happy with the Dubro 2.5" smooth rubber low bounce tire as a tailwheel. It has the perfect amount of give and does exactly what Dubro claims with the "low bounce" description. The setup works awesome!
What do you think of the factory tail spring? Should I stick with it for beach flying and mill a tailwheel fork?
The Timber Tail is a lot heavier. I originally made a TW fork with a 2.25" sullivan tire and it sank in the sand, it pivoted great though. Your beach sand is a lot more compacted than mine close to the water. I really like the 3.25" Dubro smooth rubber low bounce on mine for this reason. I had bent up a 5/32" wire like yours and never really liked how it pivoted with a new design I came up with. I have debated making bearings for it to castor easier but was just a lot of work at the time so decided to stick with the stock spring. My geometry was probably all wrong though.
For the time being I am happy with the configuration that mine is in currently with the stock tailgear, and my 3.25" TW assy.
Did your tailgear come with three or two leafs? @Snoopy1 had only two - they sent him another and it also had two. Mine was an earlier production run and had three.
I like your setup a lot, If you can re-draw it up for a 3-3.5" wheel assy I think you'll be happier. the 3" and 3.25" share the same hub diameter. OR if you don't have access to a 3D Printer and want to play with my design, let me know. I can whistle one up for you.