Doug is right, what I did not elaborate on, is that I pull the front forks down until they stop.
Then I back them off about 1 to 1.5 inches. That ensures there will be no further compression.
Does NOT hold any water at all.
Regarding absorbing the shock, my cargo trailer takes out the worst of it.
That trailer is going to rebound from a shock load horribly.
And when it does, it is going to throw that bike really hard.
Evidence of this:
a few weeks back, my daughter was in our 26' Toy Hauler while I took it for a test run of about 3 miles out and back.
The tires on it were several years old and had sat for six years at least.
Even though, they were aired up to 80 psi, they were so horribly out of round,
she told me that even though she was holding on to the center table, and the window frame, it was tossing her to the floor.
and that is just out of round tires!!!
Let that trailer do a rebound on a six inch deep hole you did not see and it does a rebound out of that hole, and that bike is going somewhere.....
I would much prefer that the suspension take care of that action.
It is your bike, and you are the one that has to be happy, but I will never, ever, tie the rear frame down.
Way too dangerous long term.
The tires on that Toy Hauler?
They were replaced with brand new, Premium level Goodyear 10 ply trailer tires.
Now it rides as smooth as can be. She did a 2nd test ride of about 8 miles to the next pull over, we had to know. Because the way it was, the furniture was going to come apart.