Well, it finally happen. I took the plunge and got the suspension:
There is only one word to describe this upgrade: A-FROCKING-MAZING... you just can't even begin to imagine the difference it made on my 65 mph eTrike. If you have a KMX trike, get this.
I got this kit today, packaging was excellent, everything packaged with bubble wrap, he even included threadlocker loctite... great touch. All hardware included, except wrenches. You need to use SAE wrenches, no metric here... so I had to go find those in my basement but other than that it only took roughly ~4 hours to get it installed. The only thing to watch out for me was the right steering knuckle brake assembly had to be grind down around the edges for the main suspension support to clear. Other than that it was a fairly straightforward installation. I had to realign the calipers and wheels after installing the suspension, but now everything lines up even better than it did with the tortured stock steering knuckles after 1700 miles at ~30+ mph on bumpy roads. The trike has quieted down too.
I can confirm the "shocks" are just guides, there are no fluids or dampening inside them... BUT.. but make no mistake, the difference using this suspension is NIGHT and DAY vs my other non-suspended KMX eTrike. It might be a little better with air shocks, but going from non-suspended to this is like going from 0% to 90% there, maybe the air shocks are that extra 10% who knows... but point is this suspension upgrade is a must if you're serious about riding at high speeds.
Weight, it didn't matter to me, I have 6 kW on tap, so two extra lbs on a 100 lbs tank wasn't going to make much of a difference, now it made a difference where it mattered, where my teeth don't rattle going over road expansion joints... thunk thunk thunk... bye bye garbage roads... fix the dang roads...
Okay, ranting aside: The handling has also improved, and considerably as well; as the trike doesn't feel as twitchy at high speed nor when taking tight turns; in fact, it loves taking turns even more now than it did before. And b/c its so wide now its probably impossible to flip it (or even put on two wheels) but this might not apply to everyone, as my trike is a mid-drive with the motor under the front BB and most of the weight already resting over the two front wheels.
As a custom modification I made my own KMX premium fender plate support. I just don't like riding around without fenders and this was a must have for me. Kindly enough the suspension knuckles have 4 screws to install a fender and I used those to get my KMX fenders retrofitted onto the suspension.
Adam stated that this was a 66% improvement in ride... well, I think he is selling himself short there: For me this was more an 80-90% ride improvement under all conditions, and based on his comments I was concerned that not having rear suspension would still be a problem, but it wasn't; and maybe it is b/c there is little weight over the rear wheel on my trike, no weight to bounce all over the place; I don't know, but what I do know is that I love this kit and I will be getting a 2nd kit for my other KMX Cyclone eTrike very soon...
Oh, I will probably be looking into trying one of these air shocks; who knows, it might get some extra improvements... but the truth is that this suspension rides exceptionally well as it is, so maybe after I get the 2nd trike suspended I'll give a shot to those air shocks... we'll see.
As for aesthetics, well, one can argue trikes look ugly blah blah, that's fine; but to me the trike now looks more like a race car than a pedal trike... in short: it looks BAD ASS, wide and mean. I'll post some pictures of the trike tomorrow.
Great upgrade, thanks Adam!